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

Analog Devices Inc. ADA4099-2BRMZ

Name: ADA4099-2BRMZ
Brand: Analog Devices Inc.
SKU: ADA4099-2BRMZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADA4099-2BRMZ

Manufacturer:: Analog Devices Inc.

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Datasheet:: ADA4099-2BRMZ.pdf

Description:: DUAL PRECISION 10MHZ, 7V/US OTT

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Product details

Overview

ADA4099-2BRMZ from Analog Devices is a dual-channel, precision rail-to-rail input/output operational amplifier with Over-The-Top™ input stage enabling operation up to 70 V above the negative supply rail. It delivers 8 MHz gain bandwidth, 5.5 V/µs slew rate, ±40 µV max input offset voltage, and 1.5 mA per channel supply current across ±25 V or +3.15 V to +50 V supplies - ideal for high-voltage industrial current sensing and battery monitoring.

For engineers reviewing the ADA4099-2BRMZ datasheet, ADA4099-2BRMZ pinout, ADA4099-2BRMZ application, or ADA4099-2BRMZ equivalent, this page provides verified technical context, exact pin functions for SOIC_N package, real-world application mappings, and two validated alternative op amps with documented functional trade-offs in abusive-environment signal conditioning.

Technical Context

The ADA4099-2BRMZ implements a proprietary Over-The-Top input stage that extends common-mode range to −VS − 0.1 V to −VS + 70 V independent of +VS, enabling ground-referenced sensing in high-side configurations. Its voltage-feedback architecture supports unity-gain stability and drives ≥20 mA loads with ≤100 pF capacitive load tolerance.

It integrates dual independent shutdown pins (SHDN1/SHDN2) with −VS-referenced logic thresholds (−VS + 0.5 V low, −VS + 1.5 V high), achieving 20 µA max shutdown current and <10 µs wake-up time. Input protection withstands ±2 kV HBM and ±1.25 kV FICDM ESD, and operates continuously from −55°C to +150°C (H grade).

Key Specifications

Parameter	Value and Actual Design Meaning
Gain Bandwidth Product	8 MHz typical - enables stable closed-loop operation up to 100 kHz with 80× gain in precision sensor interfaces.
Slew Rate	5.5 V/µs typical at ΔVOUT = 25 V - supports fast transient response in overvoltage detection and supply monitoring.
Input Offset Voltage	±40 µV maximum - ensures ≤0.2% error in 4–20 mA transmitter output stages without trimming.
Common-Mode Range	−VS − 0.1 V to −VS + 70 V - allows direct sensing of battery stacks, solar arrays, or industrial bus voltages referenced to negative rails.
Supply Voltage Range	+3.15 V to +50 V (single) or ±25 V (split) - accommodates wide-input power systems without external level-shifting.
Quiescent Current	1.5 mA per channel typical - enables always-on monitoring in energy-constrained industrial nodes.
CMRR / PSRR	118 dB / 123 dB minimum - rejects noise from shared power rails in motor drive or PLC analog input modules.

Pinout & Package

The ADA4099-2BRMZ is packaged in an 8-lead standard small outline integrated circuit (SOIC_N), with exposed pad not present. Pin 4 is dedicated −VS return, and Pins 5/6 are assigned to Channel 2 inputs - critical for layout isolation in dual-channel differential sensing.

Pin/Terminal	Circuit Role	Design Meaning
1	VOUT1	Channel 1 output - rail-to-rail swing supports full-scale ADC interfacing without level shifters.
2	−IN1	Inverting input, Channel 1 - high common-mode tolerance enables Kelvin-sense resistor placement on high-side shunts.
3	+IN1	Noninverting input, Channel 1 - matched to −IN1 for <1 nA input bias current mismatch in precision difference amplifiers.
4	−VS	Negative supply - must be bypassed with ≥0.1 µF capacitor to low-impedance ground plane for PSRR integrity.
5	+IN2	Noninverting input, Channel 2 - electrically isolated from Channel 1 inputs to prevent crosstalk in dual-supply monitoring.
6	−IN2	Inverting input, Channel 2 - supports independent gain configuration for redundant sensor channels or differential pair buffering.
7	VOUT2	Channel 2 output - independently controllable via SHDN2 for power-gated signal paths in modular I/O designs.
8	+VS	Positive supply - requires local 0.1 µF ceramic bypass to suppress high-frequency supply noise coupling into inputs.

Key Features

Feature	Design Value
Over-The-Top input stage	Supports input voltages up to 70 V above −VS - eliminates need for external attenuators or level shifters in high-side current sensing.
Dual independent shutdown	SHDN1/SHDN2 pins enable per-channel power gating - reduces system standby current by >98% when only one channel is active.
Robust input protection	Withstands ±80 V differential input and −5 V to +80 V continuous pin voltage - survives load-dump transients in automotive and industrial 24 V systems.
Low 1/f noise corner	6 Hz typical - preserves DC accuracy in slow-moving sensor outputs (e.g., temperature, pressure) without high-pass filtering.
H-grade temperature range	−55°C to +150°C operation - qualified for under-hood, downhole, and factory-floor environments without derating.

Applications

Industrial Sensor Conditioning	Supply Current Sensing
Use Scenario: Amplifying mV-level outputs from RTDs, strain gauges, or thermocouples in harsh factory environments with high EMI and wide ambient temperature swings. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with rail-to-rail I/O and Over-The-Top input enabling direct connection to grounded sensors. Use Value: ±40 µV offset and 0.4 µV/°C drift ensure <0.1% total error over −40°C to +85°C without calibration - reducing BOM cost and test time.	Use Scenario: High-side current measurement in 24 V/48 V industrial power supplies using 10 mΩ shunt resistors, where input must tolerate >30 V common-mode. IC Role / Device Role / Timing Role: Difference amplifier with extended common-mode range, configured as current-sense amplifier with fixed gain. Use Value: −VS + 70 V input range allows direct sensing at battery positive terminal - avoids isolation components and improves measurement bandwidth.
Battery & Power Supply Monitoring	4–20 mA Transmitters
Use Scenario: Real-time voltage and current monitoring of Li-ion battery packs or telecom rectifiers operating up to 50 V, requiring fault detection within microseconds. IC Role / Device Role / Timing Role: High-speed comparator and buffer driving ADC inputs, with shutdown control for periodic sampling to minimize quiescent power. Use Value: 5.5 V/µs slew rate and 8 MHz GBP support 10-bit resolution at 100 kSPS - enabling cycle-by-cycle overvoltage/overcurrent response.	Use Scenario: Converting process sensor outputs (e.g., pressure, flow) into standardized 4–20 mA loop signals in hazardous area transmitters with wide input voltage range. IC Role / Device Role / Timing Role: Output driver and loop regulator amplifier with rail-to-rail output swing and low thermal drift. Use Value: 120 dB large-signal voltage gain and 118 dB CMRR maintain 16-bit linearity over 4–20 mA span - meeting HART protocol accuracy requirements.

Industrial Sensor Conditioning

Supply Current Sensing

Use Scenario: Amplifying mV-level outputs from RTDs, strain gauges, or thermocouples in harsh factory environments with high EMI and wide ambient temperature swings.

IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with rail-to-rail I/O and Over-The-Top input enabling direct connection to grounded sensors.

Use Value: ±40 µV offset and 0.4 µV/°C drift ensure <0.1% total error over −40°C to +85°C without calibration - reducing BOM cost and test time.

Use Scenario: High-side current measurement in 24 V/48 V industrial power supplies using 10 mΩ shunt resistors, where input must tolerate >30 V common-mode.

IC Role / Device Role / Timing Role: Difference amplifier with extended common-mode range, configured as current-sense amplifier with fixed gain.

Use Value: −VS + 70 V input range allows direct sensing at battery positive terminal - avoids isolation components and improves measurement bandwidth.

Battery & Power Supply Monitoring

4–20 mA Transmitters

Use Scenario: Real-time voltage and current monitoring of Li-ion battery packs or telecom rectifiers operating up to 50 V, requiring fault detection within microseconds.

IC Role / Device Role / Timing Role: High-speed comparator and buffer driving ADC inputs, with shutdown control for periodic sampling to minimize quiescent power.

Use Value: 5.5 V/µs slew rate and 8 MHz GBP support 10-bit resolution at 100 kSPS - enabling cycle-by-cycle overvoltage/overcurrent response.

Use Scenario: Converting process sensor outputs (e.g., pressure, flow) into standardized 4–20 mA loop signals in hazardous area transmitters with wide input voltage range.

IC Role / Device Role / Timing Role: Output driver and loop regulator amplifier with rail-to-rail output swing and low thermal drift.

Use Value: 120 dB large-signal voltage gain and 118 dB CMRR maintain 16-bit linearity over 4–20 mA span - meeting HART protocol accuracy requirements.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
LT6015IMS8#PBF	Wider supply range (4.5 V to 100 V), higher input impedance (>10¹² Ω), but lower GBP (1.3 MHz) and no shutdown pins.	Better suited for ultra-high-impedance pH or ion-selective electrode buffers; lacks per-channel power control for dual-sensor systems.	Choose LT6015 when input bias current <1 pA is mandatory and bandwidth <2 MHz suffices - avoid if dual-channel shutdown or >5 MHz response is required.
OPA2189IDR	Zero-drift architecture (0.003 µV/°C drift), lower noise (5.2 nV/√Hz), but limited common-mode range (−VS to +VS + 0.3 V) and no Over-The-Top capability.	Ideal for precision weigh scales or medical instrumentation with clean, low-voltage rails - cannot replace ADA4099-2BRMZ in high-side sensing.	Choose OPA2189 when sub-µV drift dominates design requirements and input common-mode stays within rail limits - reject for battery stack monitoring.

Compared with LT6015IMS8#PBF and OPA2189IDR, the ADA4099-2BRMZ uniquely combines 70 V Over-The-Top input tolerance, dual-channel shutdown, and 8 MHz bandwidth - making it the only option for ruggedized, high-bandwidth, dual-channel current/voltage monitoring in 24–48 V industrial systems.

Availability

ADA4099-2BRMZ is available at Aetrix Electronics and suitable for industrial sensor conditioning, supply current sensing, and battery monitoring requiring stable component supply across extended temperature and high-voltage operating conditions.

Supply support for ADA4099-2BRMZ 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.

The ADA4099-2BRMZ belongs to Analog Devices' robust precision op amp product line, engineered specifically for signal conditioning in electrically abusive environments - including industrial automation, energy infrastructure, and transportation systems.

FAQ

What is the maximum continuous supply voltage for ADA4099-2BRMZ?

The ADA4099-2BRMZ supports a maximum continuous supply voltage of 50 V, as specified in its absolute maximum ratings. This applies to both single-supply (e.g., +50 V to GND) and split-supply (e.g., ±25 V) configurations. Transient overshoot up to 60 V is tolerated briefly, but dc operation must remain ≤50 V to prevent dielectric breakdown of on-chip capacitors. The ADA4099-2BRMZ maintains full parametric performance across its entire 3.15 V to 50 V operating range.

Does ADA4099-2BRMZ support true rail-to-rail input and output operation?

Yes, the ADA4099-2BRMZ features rail-to-rail input and output operation. Its Over-The-Top™ input stage extends the common-mode range from −VS − 0.1 V to −VS + 70 V - far beyond the positive rail - while its output swings within 45 mV of each rail under no-load conditions. This enables direct interfacing with low-voltage ADCs and operation in single-supply systems without level-shifting circuitry. The ADA4099-2BRMZ achieves this while maintaining precision specs like ±40 µV offset and 118 dB CMRR.

What is the function of Pins 5 and 6 on ADA4099-2BRMZ in SOIC_N package?

In the ADA4099-2BRMZ SOIC_N package, Pin 5 is +IN2 (noninverting input of Channel 2) and Pin 6 is −IN2 (inverting input of Channel 2). This pin assignment differs from the LFCSP variant (where Pins 5/6 are SHDN1/SHDN2) and is confirmed in Table 7 of the Rev. A datasheet. These inputs are fully independent of Channel 1, supporting dual-sensor buffering or differential pair amplification with minimal crosstalk (<115 dB at 1 kHz). The ADA4099-2BRMZ datasheet explicitly defines this mapping for the 8-lead SOIC_N and MSOP variants.

Can ADA4099-2BRMZ drive a 10 kΩ load while maintaining precision DC performance?

Yes, the ADA4099-2BRMZ maintains precision DC performance into 10 kΩ loads. At RL = 10 kΩ, its large-signal voltage gain remains ≥120 dB (min), input offset voltage drift stays ≤±0.4 µV/°C, and output swing is specified to within 110 mV of each rail. The device is unity-gain stable and drives such loads without phase reversal or gain error - verified in Table 1 (±15 V supply section) and Figure 37 (output swing vs. temperature). The ADA4099-2BRMZ delivers this performance while consuming only 1.5 mA per channel.

Is ADA4099-2BRMZ qualified for operation at −55°C?

Yes, the ADA4099-2BRMZ is rated for operation from −55°C to +150°C in its H-grade configuration, as stated in the Absolute Maximum Ratings table and confirmed in Table 1/2 temperature columns. This qualification includes full functionality of Over-The-Top input operation, shutdown control, and precision parameters (e.g., ±40 µV offset, 118 dB CMRR) across the full range. The ADA4099-2BRMZ undergoes lab characterization for thermal shutdown (175°C junction) and is designed for deployment in aerospace, downhole, and military applications requiring extreme temperature resilience.

ADA4099-2BRMZ Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Packaging:: Tube

Product Status:: Active

Amplifier Type:: General Purpose

Number of Circuits:: 2

Output Type:: Rail-to-Rail

Slew Rate:: 5.5V/µs

Gain Bandwidth Product:: 8 MHz

-3db Bandwidth:: -

Current - Input Bias:: 4 nA

Voltage - Input Offset:: 12 µV

Current - Supply:: 1.65mA

Current - Output / Channel:: 50 mA

Voltage - Supply Span (Min):: 3.15 V

Voltage - Supply Span (Max):: 50 V

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-MSOP

ADA4099-2BRMZ FAQ

1.How can I place an order for ADA4099-2BRMZ through Aetrix?

Please submit a Request for Quotation (RFQ) for ADA4099-2BRMZ 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 ADA4099-2BRMZ reliable?

The price and inventory of ADA4099-2BRMZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4099-2BRMZ is usually 5 days.

3.What payment methods are accepted for ADA4099-2BRMZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4099-2BRMZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADA4099-2BRMZ?

ADA4099-2BRMZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADA4099-2BRMZ 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 ADA4099-2BRMZ?

For technical support, including ADA4099-2BRMZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4099-2BRMZ requirements.

6.How does Aetrix verify that ADA4099-2BRMZ is sourced from the original manufacturer or authorized distributors?

All ADA4099-2BRMZ 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 ADA4099-2BRMZ meets industry standards.

7.What is the process for return or replacement of ADA4099-2BRMZ?

All ADA4099-2BRMZ units undergo pre-shipment inspection (PSI). If there is an issue with ADA4099-2BRMZ, 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 ADA4099-2BRMZ part is unused and in its original packaging.

Return procedure for ADA4099-2BRMZ:

1.Submit a request within 90 days.

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

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