Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

Analog Devices Inc. ADA4000-4ARUZ

Name: ADA4000-4ARUZ
Brand: Analog Devices Inc.
SKU: ADA4000-4ARUZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: ADA4000-4ARUZ

Manufacturer:: Analog Devices Inc.

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 14-TSSOP (0.173", 4.40mm Width)

Datasheet:: ADA4000-4ARUZ.pdf

Description:: IC OPAMP JFET 4 CIRCUIT 14TSSOP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:145

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

ADA4000-4ARUZ from Analog Devices is a quad-channel, JFET-input precision operational amplifier optimized for high-impedance signal conditioning and data acquisition. It delivers 5 MHz gain bandwidth, 20 V/µs slew rate, 1.70 mV max offset voltage, 40 pA max input bias current, and operates from ±4 V to ±18 V supplies - enabling accurate buffering of ADC inputs and DAC outputs in industrial sensor interfaces.

For engineers reviewing the ADA4000-4ARUZ datasheet, ADA4000-4ARUZ pinout, ADA4000-4ARUZ application, or ADA4000-4ARUZ equivalent, key selection considerations include its rail-to-rail input common-mode range (including +V_S), low 16 nV/√Hz voltage noise at 1 kHz, unity-gain stability with up to 1000 pF capacitive load drive, and guaranteed performance over −40°C to +125°C.

Technical Context

The ADA4000-4ARUZ implements a JFET-input differential pair architecture with high-impedance (>100 GΩ common-mode input resistance) and low input capacitance (5.5 pF), enabling minimal loading on high-Z sources like piezoelectric sensors and photodiode transimpedance nodes. Its input stage avoids phase reversal under overvoltage conditions when properly biased.

Internally compensated for unity-gain stability, it achieves 55°–60° phase margin across supply voltages (±5 V to ±15 V) and supports fast settling to 0.1% in <1.2 µs. The quad configuration shares a single die in a 14-lead TSSOP package with isolated power and ground pins per amplifier pair to minimize crosstalk.

Key Specifications

Parameter	Value and Actual Design Meaning
Gain Bandwidth Product	5 MHz - supports stable closed-loop operation up to 5× gain at 1 MHz or unity gain at 5 MHz.
Slew Rate	20 V/µs - enables full-scale step response in <1 µs for ±10 V output swings, critical for fast DAC buffering.
Input Bias Current	40 pA max at 25°C - preserves accuracy in high-impedance feedback networks (e.g., >10 MΩ) without significant error current.
Offset Voltage	1.70 mV max - ensures ≤0.017% gain error in 10 V full-scale systems without trimming.
Supply Range	±4 V to ±18 V - accommodates both low-voltage portable designs (±5 V) and industrial ±15 V rails.
Voltage Noise Density	16 nV/√Hz at 1 kHz - limits integrated noise to ~1.8 µV RMS in 100 kHz bandwidth, suitable for 16-bit precision.
Common-Mode Input Range	Includes +V_S - allows direct high-side sensing (e.g., current shunt monitoring above supply rail).

Pinout & Package

ADA4000-4ARUZ is housed in a 14-lead TSSOP (RU-14) package with exposed pad for thermal enhancement. Pin 1 is marked by a dot; pin numbering follows standard JEDEC TSSOP convention (counterclockwise from top-left corner).

Pin/Terminal	Circuit Role	Design Meaning
1	−IN A	Inverting input of Amplifier A - high-impedance JFET node; requires guarding in ultra-low-current applications.
2	+IN A	Non-inverting input of Amplifier A - accepts common-mode voltage up to +V_S, enabling high-side signal conditioning.
3	+V	Positive supply for all four amplifiers - decoupling capacitor required within 1 cm for stability.
4	OUT B	Output of Amplifier B - capable of driving ≥2 kΩ loads to ±13.4 V (±15 V supply) with <0.1% linearity error.
5	−IN B	Inverting input of Amplifier B - electrically isolated from other amplifier inputs to minimize inter-channel crosstalk.
6	+IN B	Non-inverting input of Amplifier B - identical electrical characteristics to Pin 2; supports independent biasing per channel.
7	OUT A	Output of Amplifier A - complements Pin 4 for dual-output configurations; shares same AC performance specs.
8	OUT C	Output of Amplifier C - provides third independent output; layout symmetry recommended to match thermal drift.
9	−IN C	Inverting input of Amplifier C - referenced to shared −V pin (Pin 11); no internal connection to other −IN pins.
10	+IN C	Non-inverting input of Amplifier C - supports rail-to-rail common-mode input, matching Pins 2 and 6.
11	−V	Negative supply for all four amplifiers - must be connected before input signals to prevent latch-up.
12	+IN D	Non-inverting input of Amplifier D - fourth independent input; validated for operation down to −40°C ambient.
13	−IN D	Inverting input of Amplifier D - fully specified for bias current and offset voltage across full temperature range.
14	OUT D	Output of Amplifier D - completes quad functionality; output swing limited by load current and supply headroom.

Key Features

Feature	Design Value
Rail-to-rail input common-mode range including +V_S	Enables direct interfacing to high-side current sense resistors without level-shifting circuitry.
Unity-gain stable with 1000 pF capacitive load drive	Eliminates need for external isolation resistors when driving long traces or ADC input capacitance.
Low 16 nV/√Hz voltage noise at 1 kHz	Supports 16-bit effective resolution in 100 kHz bandwidth data acquisition systems.
Fast 1.2 µs settling to 0.1%	Meets timing requirements for 1 MSPS SAR ADCs with minimal dead time between conversions.
Guaranteed operation from −40°C to +125°C	Validated for use in automotive engine control units and industrial motor drives without derating.

Applications

Reference Gain/Buffering	Power Line Monitoring
Use Scenario: Buffering precision voltage references (e.g., REF5025) to multiple ADC channels while maintaining ppm-level accuracy. IC Role / Device Role / Timing Role: Quad op-amp configured as unity-gain followers, isolating reference source from varying ADC input capacitance and leakage currents. Use Value: 40 pA max input bias current prevents reference loading errors; 1.70 mV max offset ensures ≤0.017% full-scale error in 10 V reference systems.	Use Scenario: High-side current sensing on 400 V AC mains using shunt resistor and isolated amplifier interface. IC Role / Device Role / Timing Role: High-impedance buffer amplifying differential voltage across shunt, with common-mode input extending to +V_S for direct high-side connection. Use Value: Input common-mode range including +V_S eliminates need for level-shift op-amps or expensive isolated amplifiers in Class I metering designs.
Active Filter Design	Data Acquisition Front-End
Use Scenario: 4th-order low-pass filter for anti-aliasing prior to 16-bit SAR ADC sampling at 1 MSPS. IC Role / Device Role / Timing Role: Quad amplifier implementing two 2-pole Sallen-Key stages, leveraging matched AC performance across channels. Use Value: 5 MHz GBW and 20 V/µs slew rate support filter cutoff frequencies up to 100 kHz with <0.1 dB passband ripple and monotonic group delay.	Use Scenario: Simultaneous sampling of four sensor signals (thermocouple, RTD, strain gauge, pressure transducer) into multiplexed ADC. IC Role / Device Role / Timing Role: Quad signal conditioner providing gain, filtering, and drive capability for each sensor channel before multiplexing. Use Value: 1.2 µs settling to 0.1% ensures full accuracy during ADC aperture time; low 16 nV/√Hz noise preserves SNR in low-level sensor outputs.

Reference Gain/Buffering

Power Line Monitoring

Use Scenario: Buffering precision voltage references (e.g., REF5025) to multiple ADC channels while maintaining ppm-level accuracy.

IC Role / Device Role / Timing Role: Quad op-amp configured as unity-gain followers, isolating reference source from varying ADC input capacitance and leakage currents.

Use Value: 40 pA max input bias current prevents reference loading errors; 1.70 mV max offset ensures ≤0.017% full-scale error in 10 V reference systems.

Use Scenario: High-side current sensing on 400 V AC mains using shunt resistor and isolated amplifier interface.

IC Role / Device Role / Timing Role: High-impedance buffer amplifying differential voltage across shunt, with common-mode input extending to +V_S for direct high-side connection.

Use Value: Input common-mode range including +V_S eliminates need for level-shift op-amps or expensive isolated amplifiers in Class I metering designs.

Active Filter Design

Data Acquisition Front-End

Use Scenario: 4th-order low-pass filter for anti-aliasing prior to 16-bit SAR ADC sampling at 1 MSPS.

IC Role / Device Role / Timing Role: Quad amplifier implementing two 2-pole Sallen-Key stages, leveraging matched AC performance across channels.

Use Value: 5 MHz GBW and 20 V/µs slew rate support filter cutoff frequencies up to 100 kHz with <0.1 dB passband ripple and monotonic group delay.

Use Scenario: Simultaneous sampling of four sensor signals (thermocouple, RTD, strain gauge, pressure transducer) into multiplexed ADC.

IC Role / Device Role / Timing Role: Quad signal conditioner providing gain, filtering, and drive capability for each sensor channel before multiplexing.

Use Value: 1.2 µs settling to 0.1% ensures full accuracy during ADC aperture time; low 16 nV/√Hz noise preserves SNR in low-level sensor outputs.

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision JFET op-amp applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
OPA4141AIPW	Lower 11 nV/√Hz noise but higher 1.2 nA max input bias current; 4.2 MHz GBW.	Better for low-noise audio preamps; less suitable for >10 MΩ sensor interfaces due to bias current.	Select ADA4000-4ARUZ when input impedance >100 GΩ and bias current <100 pA are mandatory.
LT1492CN#PBF	Higher 250 µV max offset voltage; wider ±20 V supply range; 2.7 MHz GBW.	Preferred for high-supply industrial controls; not optimal for 16-bit data acquisition requiring sub-mV offset.	Choose ADA4000-4ARUZ for precision data acquisition where 1.70 mV max offset and 5 MHz bandwidth are required.

Compared with OPA4141AIPW and LT1492CN#PBF, ADA4000-4ARUZ uniquely balances ultra-low bias current (40 pA), low offset (1.70 mV), and wide bandwidth (5 MHz) in a single quad package - making it optimal for high-impedance, high-speed precision signal chains where all three parameters are simultaneously critical.

Availability

ADA4000-4ARUZ is available at Aetrix Electronics and suitable for industrial sensor interfaces, power quality monitoring systems, and precision data acquisition requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for ADA4000-4ARUZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Wilmington, MA.

The ADA4000 family was designed specifically for precision signal conditioning in high-impedance, wide-bandwidth applications such as sensor front-ends, data acquisition systems, and instrumentation-grade analog circuits.

FAQ

What is the maximum capacitive load the ADA4000-4ARUZ can drive without oscillation?

The ADA4000-4ARUZ is unity-gain stable and can drive up to 1000 pF of capacitive load without oscillation, as verified in the datasheet's capacitive load drive section. For loads exceeding this value, a snubber network (series resistor + capacitor) is recommended to suppress overshoot and ringing - typical values used in validation were 41 Ω and 10 nF for 500 pF loads. This capability simplifies PCB layout by eliminating the need for external isolation resistors in many ADC driver applications.

Does the ADA4000-4ARUZ support rail-to-rail input operation?

Yes, the ADA4000-4ARUZ features a rail-to-rail input common-mode voltage range that explicitly includes the positive supply rail (+V_S). This allows direct connection to high-side sensing nodes - such as current shunts placed between load and positive supply - without requiring level-shifting circuitry. The input stage remains linear and functional even when the common-mode voltage equals +V_S, a key advantage over many competing JFET op-amps.

What is the guaranteed settling time specification for the ADA4000-4ARUZ?

The ADA4000-4ARUZ settles to within 0.1% of final value in less than 1.2 µs, as measured under standard test conditions (±15 V supply, 10 V step input, 2 kΩ load). This performance is critical for high-speed data acquisition systems using SAR ADCs, where amplifier settling directly impacts achievable sampling rate and code accuracy. The fast settling is enabled by its 20 V/µs slew rate and optimized internal compensation.

How does the input bias current of the ADA4000-4ARUZ vary with temperature?

The ADA4000-4ARUZ maintains exceptionally low input bias current across temperature: 40 pA maximum at 25°C, rising to 3 nA maximum at +125°C (per Table 2). This behavior is characteristic of JFET input stages and is significantly lower than bipolar-input alternatives. At −40°C, bias current drops further - below 5 pA - making the device especially valuable in cryogenic or low-power battery-operated sensor nodes where leakage must be minimized.

Is the ADA4000-4ARUZ pin-compatible with other devices in the ADA4000 family?

No - the ADA4000-4ARUZ (14-lead TSSOP) is not pin-compatible with the ADA4000-1 or ADA4000-2 variants, which use 5-lead TSOT, 8-lead SOIC, or 8-lead MSOP packages. Even among quad versions, the ADA4000-4ARZ (14-lead SOIC) has different pin assignments than the ADA4000-4ARUZ (14-lead TSSOP), particularly in power pin placement and output ordering. Layout redesign is required when substituting between these packages.

ADA4000-4ARUZ Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: 14-TSSOP (0.173", 4.40mm Width)

Packaging:: Tube

Product Status:: Active

Amplifier Type:: J-FET

Number of Circuits:: 4

Output Type:: -

Slew Rate:: 20V/µs

Gain Bandwidth Product:: 5 MHz

-3db Bandwidth:: -

Current - Input Bias:: 5 pA

Voltage - Input Offset:: 200 µV

Current - Supply:: 1.35mA (x4 Channels)

Current - Output / Channel:: 28 mA

Voltage - Supply Span (Min):: 8 V

Voltage - Supply Span (Max):: 36 V

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-TSSOP

ADA4000-4ARUZ FAQ

1.How can I place an order for ADA4000-4ARUZ through Aetrix?

Please submit a Request for Quotation (RFQ) for ADA4000-4ARUZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for ADA4000-4ARUZ reliable?

The price and inventory of ADA4000-4ARUZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4000-4ARUZ is usually 5 days.

3.What payment methods are accepted for ADA4000-4ARUZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4000-4ARUZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADA4000-4ARUZ?

ADA4000-4ARUZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADA4000-4ARUZ order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for ADA4000-4ARUZ?

For technical support, including ADA4000-4ARUZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4000-4ARUZ requirements.

6.How does Aetrix verify that ADA4000-4ARUZ is sourced from the original manufacturer or authorized distributors?

All ADA4000-4ARUZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADA4000-4ARUZ meets industry standards.

7.What is the process for return or replacement of ADA4000-4ARUZ?

All ADA4000-4ARUZ units undergo pre-shipment inspection (PSI). If there is an issue with ADA4000-4ARUZ, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The ADA4000-4ARUZ part is unused and in its original packaging.

Return procedure for ADA4000-4ARUZ:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…