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Analog Devices Inc. ADA4004-4ARZ
- Part No.:
- ADA4004-4ARZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADA4004-4ARZ.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:375
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Product details
Overview
ADA4004-4ARZ from Analog Devices is a quad-channel, precision operational amplifier optimized for low-noise, high-accuracy signal conditioning in ±5 V to ±15 V systems. It delivers 1.8 nV/√Hz voltage noise density, 12 MHz gain bandwidth, 120 dB open-loop gain, and 0.7 µV/°C offset drift - enabling high-fidelity amplification in thermocouple interfaces and reference buffers.
For engineers reviewing the ADA4004-4ARZ datasheet, ADA4004-4ARZ pinout, ADA4004-4ARZ application, or ADA4004-4ARZ equivalent, key selection criteria include its quad SOIC-14 package, rail-to-rail output swing capability (±3.6 V @ ±5 V supply), guaranteed −40°C to +125°C operation, and compatibility with precision filter and instrumentation amplifier topologies requiring <125 µV max offset and <2.2 mA per amplifier supply current.
Technical Context
The ADA4004-4ARZ employs Analog Devices' iPolar™ process to achieve simultaneous low noise (1.8 nV/√Hz), low power (1.7–2.2 mA per amplifier), and high DC precision (40 µV typical offset, 0.7 µV/°C drift). Its 12 MHz GBP and 2.7 V/µs slew rate support stable unity-gain and high closed-loop configurations up to 100 kHz without phase reversal.
Designed for wide-supply operation (±5 V to ±15 V), it maintains >110 dB PSRR and CMRR across temperature, with input voltage range extending to ±12.5 V at ±15 V supplies and output swing within 1.4 V of rails. The device features no phase reversal under overdrive and exhibits <0.15 µV p-p 0.1 Hz–10 Hz noise.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Voltage Noise Density | 1.8 nV/√Hz at 1 kHz - enables sub-µV signal resolution in low-frequency precision measurement paths |
| Gain Bandwidth Product | 12 MHz - supports stable 10× closed-loop gain up to ~1.2 MHz with adequate phase margin |
| Input Offset Voltage | 125 µV max (±15 V, 25°C) - ensures ≤0.001% error in 12-bit+ data acquisition front-ends |
| Supply Current per Amp | 2.2 mA max (−40°C to +125°C) - allows four channels in <9 mA total, suitable for space-constrained industrial modules |
| Common-Mode Rejection | 113 dB typ (±15 V) - rejects >3.7 million:1 common-mode interference in differential sensor interfaces |
| Output Voltage Swing | ±13.2 V min (±15 V supply, RL = 2 kΩ) - delivers full-scale dynamic range into high-impedance loads |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive, motor control feedback, and industrial PLC environments |
Pinout & Package
ADA4004-4ARZ is housed in a 14-lead SOIC_N (R-14) package with exposed pad recommended to be connected to V−. Pin 1 is marked by a notch or dot; the device features four independent amplifiers sharing common V+ (Pin 4) and V− (Pin 11).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives low-impedance loads up to ±10 mA with <1.4 V headroom |
| 2 | −IN A | Inverting input of Amp A - high-impedance node (90 nA max IB) for precision feedback networks |
| 3 | +IN A | Non-inverting input of Amp A - matched to −IN A for <100 nA input offset current |
| 4 | V+ | Positive supply rail - accepts +5 V to +15 V; decoupling required within 1 cm |
| 5 | +IN B | Non-inverting input of Amp B - electrically isolated from other inputs; supports independent biasing |
| 6 | −IN B | Inverting input of Amp B - identical specs to −IN A; channel separation >80 dB at 100 kHz |
| 7 | OUT B | Amplifier B output - fully independent output stage; no crosstalk-induced settling delay |
| 8 | OUT C | Amplifier C output - same drive strength and noise performance as OUT A/B/D |
| 9 | −IN C | Inverting input of Amp C - matches −IN A/B/D in bias current and offset voltage distribution |
| 10 | +IN C | Non-inverting input of Amp C - supports parallel configuration or independent sensor channels |
| 11 | V− | Negative supply rail - connects to exposed pad; must be low-impedance ground return path |
| 12 | +IN D | Non-inverting input of Amp D - enables four-channel synchronous signal conditioning |
| 13 | −IN D | Inverting input of Amp D - matched pair with +IN D for minimal thermal EMF in RTD bridges |
| 14 | OUT D | Amplifier D output - completes quad functionality; all outputs specified for simultaneous loading |
Key Features
| Feature | Design Value |
|---|---|
| iPolar™ process technology | Enables 1.8 nV/√Hz noise + 1.7 mA per amp simultaneously - 30% lower power than prior-gen precision op amps at same noise floor |
| No phase reversal under overdrive | Guaranteed safe operation when inputs exceed supply rails - eliminates latch-up risk in sensor fault conditions |
| Low 1/f noise corner | 6 Hz corner frequency - preserves DC stability in thermocouple and strain gauge amplifiers without chopper artifacts |
| High open-loop gain | 120 dB min (±15 V) - ensures <0.001% gain error in 100× inverting configurations with 1% feedback resistors |
| Robust ESD rating | ±2 kV HBM - survives handling and board assembly without additional protection circuitry |
Applications
| Thermocouple Amplification | Reference Buffering |
|---|---|
|
Use Scenario: Amplifying µV-level thermocouple outputs (e.g., Type K, −200°C to +1372°C) with cold-junction compensation. IC Role / Device Role / Timing Role: Primary gain stage with programmable offset correction and low-drift DC coupling. Use Value: 0.7 µV/°C drift and 125 µV max offset limit temperature error to <0.1°C over full industrial range. |
Use Scenario: Buffering precision voltage references (e.g., ADR4540, LTZ1000) to multiple ADCs or DACs. IC Role / Device Role / Timing Role: Unity-gain follower isolating reference from load-induced droop and noise coupling. Use Value: 113 dB CMRR and 1.8 nV/√Hz noise preserve reference accuracy without degrading SNR in 24-bit SAR ADCs. |
| Precision Filter Blocks | Industrial Control Loops |
|
Use Scenario: Implementing 4th-order active low-pass filters in vibration monitoring or spectral analysis equipment. IC Role / Device Role / Timing Role: Dual-stage amplifier in Sallen-Key or MFB topology with matched channel characteristics. Use Value: 12 MHz GBP and 48° phase margin ensure monotonic step response and <0.1 dB passband ripple up to 100 kHz. |
Use Scenario: Closed-loop current/voltage sensing in servo drives and power converters. IC Role / Device Role / Timing Role: Isolated shunt amplifier feeding isolation ADC or analog controller inputs. Use Value: ±15 V operation and 120 dB open-loop gain enable 0.01% current measurement accuracy across 4-decade dynamic range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8674ARZ | Higher 2.8 nV/√Hz noise, 10 MHz GBP, 3.5 mA per amp supply current | Less suitable for ultra-low-noise sensor front-ends but offers better DC precision (12 µV offset) | Select AD8674ARZ when offset voltage dominates system error budget over noise |
| OPA4188AIPW | Zero-drift architecture, 0.03 µV/°C drift, 8.5 MHz GBP, 1.1 mA per amp | Better for DC-critical applications (e.g., weigh scales); higher 1/f noise limits AC bandwidth | Choose OPA4188AIPW where long-term zero stability outweighs broadband noise requirements |
Compared with AD8674ARZ and OPA4188AIPW, ADA4004-4ARZ uniquely balances ultra-low broadband noise, moderate drift, and robust 12 MHz bandwidth - making it optimal for high-resolution data acquisition systems requiring both AC fidelity and DC accuracy without chopper artifacts.
Availability
ADA4004-4ARZ is available at Aetrix Electronics and suitable for precision instrumentation, industrial control systems, and medical data acquisition requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for ADA4004-4ARZ 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 Norwood, MA.
The ADA4004 family was developed to address the need for low-noise, low-drift, wide-supply op amps in high-accuracy industrial and instrumentation systems - combining iPolar™ process advantages with proven reliability in harsh environments.
FAQ
What is the maximum supply voltage rating for ADA4004-4ARZ?
The ADA4004-4ARZ has an absolute maximum supply voltage rating of ±18 V or +36 V single supply. Operation is fully specified from ±5 V to ±15 V across −40°C to +125°C. Exceeding ±18 V risks permanent damage per the Absolute Maximum Ratings table.
Does ADA4004-4ARZ support rail-to-rail input or output operation?
ADA4004-4ARZ does not feature rail-to-rail input; its input voltage range is −12.5 V to +12.5 V with ±15 V supplies. However, its output swings to within 1.4 V of each rail - delivering ±13.2 V minimum at ±15 V supply into 2 kΩ loads.
Is the exposed pad on ADA4004-4ARZ electrically connected?
Yes - the exposed pad on the ADA4004-4ARZ (SOIC-14 package) is internally connected to V−. The datasheet explicitly recommends soldering it to the V− plane to ensure proper thermal dissipation and electrical stability.
How does ADA4004-4ARZ perform in unity-gain stable configurations?
ADA4004-4ARZ is unity-gain stable with ≥48° phase margin at ±5 V and ±15 V supplies. Its open-loop response shows no peaking or ringing in unity-gain follower tests, and Figure 34 confirms clean small-signal transient response with 1 nF capacitive load.
Can ADA4004-4ARZ replace older quad op amps like OP4177 in existing designs?
ADA4004-4ARZ offers superior noise (1.8 vs. 2.9 nV/√Hz), higher bandwidth (12 vs. 1.3 MHz), and lower supply current (2.2 vs. 4.5 mA per amp) than OP4177ARUZ. Pinout differs (SOIC-14 vs. TSSOP-14), so PCB layout revision is required despite functional overlap.
ADA4004-4ARZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- iPolar®
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 2.7V/µs
- Gain Bandwidth Product:
- 12 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 40 nA
- Voltage - Input Offset:
- 40 µV
- Current - Supply:
- -
- Current - Output / Channel:
- 10 mA
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
ADA4004-4ARZ FAQ
1.How can I place an order for ADA4004-4ARZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4004-4ARZ 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 ADA4004-4ARZ reliable?
The price and inventory of ADA4004-4ARZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4004-4ARZ is usually 5 days.
3.What payment methods are accepted for ADA4004-4ARZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4004-4ARZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4004-4ARZ?
ADA4004-4ARZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4004-4ARZ 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 ADA4004-4ARZ?
For technical support, including ADA4004-4ARZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4004-4ARZ requirements.
6.How does Aetrix verify that ADA4004-4ARZ is sourced from the original manufacturer or authorized distributors?
All ADA4004-4ARZ 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 ADA4004-4ARZ meets industry standards.
7.What is the process for return or replacement of ADA4004-4ARZ?
All ADA4004-4ARZ units undergo pre-shipment inspection (PSI). If there is an issue with ADA4004-4ARZ, 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 ADA4004-4ARZ part is unused and in its original packaging.
Return procedure for ADA4004-4ARZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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