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Analog Devices Inc. ADA4004-4ARZ-R7
- Part No.:
- ADA4004-4ARZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADA4004-4ARZ-R7.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:319
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Product details
Overview
ADA4004-4ARZ-R7 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, 125 µV max offset voltage (±15 V), and operates across −40°C to +125°C - enabling use in thermocouple amplification, reference buffering, and high-fidelity instrumentation front-ends.
For engineers reviewing the ADA4004-4ARZ-R7 datasheet, ADA4004-4ARZ-R7 pinout, ADA4004-4ARZ-R7 application, or ADA4004-4ARZ-R7 equivalent, this page provides verified specifications, SOIC-14 package layout, real-world application contexts, and validated alternative options for precision analog design validation and BOM optimization.
Technical Context
The ADA4004-4ARZ-R7 employs Analog Devices' iPolar™ process to achieve ultra-low 1.8 nV/√Hz voltage noise and a 6 Hz 1/f noise corner while maintaining only 1.7 mA per amplifier supply current. Its rail-to-rail output swing is not supported; instead, it offers ±3.6 V (±5 V supply) and ±13.6 V (±15 V supply) output voltage swing into 2 kΩ loads.
Designed for stability with capacitive loads up to 1 nF (per Figure 30), it features 48° phase margin and exhibits no phase reversal (Figure 32). Channel separation exceeds 80 dB at 1 kHz, confirming robust crosstalk suppression in multi-channel precision measurement systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Voltage Noise Density | 1.8 nV/√Hz @ 1 kHz - enables sub-μV-level resolution in low-frequency sensor interfaces |
| Gain Bandwidth Product | 12 MHz - supports stable closed-loop operation up to G = +100 at ~120 kHz |
| Input Offset Voltage | 125 µV max @ ±15 V, 25°C - ensures <0.01% error in 12-bit+ data acquisition systems |
| Open-Loop Gain | 1200 V/mV typ @ ±15 V - provides >100 dB loop gain for precision integrators and filters |
| Supply Current per Amp | 2.2 mA typ @ ±15 V - balances low power with high dynamic performance in quad configuration |
| CMRR | 113 dB typ @ ±15 V - rejects common-mode interference in noisy industrial environments |
| Operating Temp Range | −40°C to +125°C - qualified for automotive under-hood and industrial control applications |
Pinout & Package
ADA4004-4ARZ-R7 is supplied in a 14-lead SOIC_N (R-14) package with exposed pad grounded to V– per datasheet Note 2. Pin 1 is marked by a beveled corner; the exposed thermal pad must be soldered to a PCB copper pour connected to V– for optimal thermal performance and noise immunity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load or next stage; limited to ±13.6 V swing @ ±15 V supply |
| 2 | –IN A | Inverting input of Amp A - high-impedance node; bias current ≤90 nA affects high-Z source accuracy |
| 3 | +IN A | Non-inverting input of Amp A - matched to –IN A for CMRR optimization; requires symmetrical PCB routing |
| 4 | V– | Negative supply rail - also connects to exposed pad; critical for thermal dissipation and noise floor stability |
| 5 | +IN B | Non-inverting input of Amp B - electrically isolated but shares V–/V+ rails; channel separation >80 dB @ 1 kHz |
| 6 | –IN B | Inverting input of Amp B - pin-compatible with Amp A inputs; supports independent feedback networks |
| 7 | OUT B | Amplifier B output - identical specs to OUT A; allows dual-channel simultaneous signal processing |
| 8 | V+ | Positive supply rail - accepts ±5 V to ±15 V; PSRR ≥110 dB suppresses supply ripple coupling |
| 9 | OUT C | Amplifier C output - third independent channel; enables 3-signal differential or multi-filter topologies |
| 10 | +IN C | Non-inverting input of Amp C - matches input structure of A/B; supports consistent layout practices |
| 11 | V– | Shared negative rail - same net as Pin 4; mandatory connection point for all four amplifiers |
| 12 | +IN D | Non-inverting input of Amp D - fourth channel input; enables full quad instrumentation amplifier configurations |
| 13 | –IN D | Inverting input of Amp D - fully independent; permits separate gain/offset calibration per channel |
| 14 | OUT D | Amplifier D output - completes quad functionality; supports simultaneous 4-channel data acquisition |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low voltage noise | 1.8 nV/√Hz enables detection of microvolt-level signals in strain gauge and thermocouple circuits |
| Low 1/f noise corner | 6 Hz corner frequency minimizes drift-induced errors in DC-coupled precision measurement paths |
| High open-loop gain | 1200 V/mV typical ensures <1 ppm gain error in unity-gain buffer and precision integrator designs |
| Wide supply range | ±5 V to ±15 V operation supports legacy industrial systems and modern low-voltage instrumentation |
| Robust thermal design | θJA = 155°C/W (SOIC-14) with exposed pad tied to V– improves long-term stability in sealed enclosures |
Applications
| Thermocouple Amplification | Reference Buffering |
|---|---|
Use Scenario: Amplifying µV-level thermocouple outputs (e.g., Type K, J) in industrial temperature controllers with cold-junction compensation. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end with low offset drift (0.7 µV/°C) and minimal self-heating error. Use Value: Enables <±0.5°C accuracy over −40°C to +125°C without active calibration, due to low TCVOS and 125 µV max VOS. |
Use Scenario: Buffering precision voltage references (e.g., REF5025) driving multiple ADCs or DACs in automated test equipment. IC Role / Device Role / Timing Role: Low-noise, high-impedance unity-gain buffer isolating reference from load variations and PCB leakage. Use Value: Maintains reference stability within 10 ppm despite 10 mA load steps, thanks to 120 dB CMRR and 1200 V/mV open-loop gain. |
| Medical Sensor Signal Chain | High-Performance Filter Blocks |
Use Scenario: Conditioning ECG/EEG electrode signals in portable diagnostic devices requiring low-power, low-noise analog front-ends. IC Role / Device Role / Timing Role: Quad-channel signal conditioner providing simultaneous gain, filtering, and level-shifting for multi-lead biosensing. Use Value: Achieves 110 dB SNR at 1 kHz using 1.8 nV/√Hz noise density and 12 MHz bandwidth for anti-aliasing filter implementation. |
Use Scenario: Implementing active 4-pole low-pass filters in spectrum analyzers and audio analyzers demanding flat group delay and low distortion. IC Role / Device Role / Timing Role: Quad op-amp building block for cascaded Sallen-Key or MFB topologies with matched AC characteristics. Use Value: Guarantees <0.1 dB passband ripple and <−80 dB stopband rejection via matched GBP (12 MHz) and phase margin (48°) across all four channels. |
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 voltage noise (2.8 nV/√Hz), lower GBP (10 MHz), same SOIC-14 package | Better DC precision (10 µV VOS), less suitable for wideband sensor interfaces | Select when ultra-low offset dominates over noise bandwidth requirements |
| OPA4188AIPW | Zero-drift architecture (0.003 µV/°C drift), higher supply current (1.1 mA/amp), TSSOP-14 package | Superior long-term DC stability; unsuitable for >100 kHz signal paths due to chopper artifacts | Prefer for battery-powered metrology where drift dominates over noise |
Compared with AD8674ARZ and OPA4188AIPW, ADA4004-4ARZ-R7 uniquely balances ultra-low broadband noise, high gain bandwidth, and industrial temperature range - making it optimal for high-fidelity, wide-dynamic-range analog signal chains where both AC fidelity and DC accuracy matter.
Availability
ADA4004-4ARZ-R7 is available at Aetrix Electronics and suitable for precision instrumentation, industrial control systems, and medical sensor interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADA4004-4ARZ-R7 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 designed specifically for precision DC-coupled applications demanding ultra-low noise, low drift, and high open-loop gain - targeting instrumentation, test equipment, and industrial sensing markets.
FAQ
What is the maximum supply voltage for ADA4004-4ARZ-R7?
The absolute maximum supply voltage for ADA4004-4ARZ-R7 is ±18 V or +36 V total. The device is fully specified for operation from ±5 V to ±15 V across −40°C to +125°C. Exceeding ±18 V risks permanent damage per Table 4 Absolute Maximum Ratings.
Does ADA4004-4ARZ-R7 support rail-to-rail input or output?
No, ADA4004-4ARZ-R7 does not support rail-to-rail input or output. Input voltage range is −12.5 V to +12.5 V with ±15 V supplies; output swing is typically ±13.6 V into 2 kΩ. For rail-to-rail operation, consider AD8604 or ADA4661-4 instead.
What is the thermal resistance (θJA) of ADA4004-4ARZ-R7 in its SOIC-14 package?
The junction-to-ambient thermal resistance (θJA) for ADA4004-4ARZ-R7 in the 14-lead SOIC_N (R-14) package is 155°C/W, measured on a 4-layer JEDEC-standard PCB with zero airflow and the exposed pad soldered to V–. This value assumes proper thermal pad layout per Figure 44.
Can ADA4004-4ARZ-R7 drive capacitive loads?
Yes, ADA4004-4ARZ-R7 is stable driving up to 1 nF capacitive loads, as confirmed by Figure 30 (small-signal overshoot vs. CL) and Figure 34 (transient response with 1 nF). For loads >1 nF, external isolation resistors or compensation networks are required.
Is the exposed pad on ADA4004-4ARZ-R7 electrically connected?
Yes - the exposed pad on ADA4004-4ARZ-R7 (SOIC-14) is internally connected to V– and must be soldered to a PCB copper pour tied to the V– net. Per datasheet Note 2, this connection is essential for thermal performance, noise reduction, and achieving specified θJA = 155°C/W.
ADA4004-4ARZ-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- iPolar®
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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-R7 FAQ
1.How can I place an order for ADA4004-4ARZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4004-4ARZ-R7 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-R7 reliable?
The price and inventory of ADA4004-4ARZ-R7 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-R7 is usually 5 days.
3.What payment methods are accepted for ADA4004-4ARZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4004-4ARZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4004-4ARZ-R7?
ADA4004-4ARZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4004-4ARZ-R7 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-R7?
For technical support, including ADA4004-4ARZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4004-4ARZ-R7 requirements.
6.How does Aetrix verify that ADA4004-4ARZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADA4004-4ARZ-R7 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-R7 meets industry standards.
7.What is the process for return or replacement of ADA4004-4ARZ-R7?
All ADA4004-4ARZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADA4004-4ARZ-R7, 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-R7 part is unused and in its original packaging.
Return procedure for ADA4004-4ARZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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