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Analog Devices Inc. AD8602WARZ-R7
- Part No.:
- AD8602WARZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8602WARZ-R7.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:372
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Product details
Overview
AD8602WARZ-R7 from Analog Devices is a dual-channel, rail-to-rail input/output precision CMOS operational amplifier optimized for single-supply operation from 2.7 V to 5.5 V. It delivers 8 MHz gain bandwidth, 5 V/µs slew rate, 500 µV max offset voltage (A grade), 750 µA per amplifier supply current, and operates across −40°C to +125°C - enabling high-accuracy signal conditioning in battery-powered instrumentation, current sensing, and sensor interfaces.
For engineers reviewing the AD8602WARZ-R7 datasheet, AD8602WARZ-R7 pinout, AD8602WARZ-R7 application, or AD8602WARZ-R7 equivalent, this page provides verified technical context, package-specific pin functions, real-world application mappings, and validated alternative options for precision analog design in automotive-qualified, low-voltage, rail-to-rail systems.
Technical Context
The AD8602WARZ-R7 implements a dual-rail-to-rail input stage using parallel NMOS and PMOS differential pairs with Analog Devices' DigiTrim® post-package offset trimming - achieving 500 µV max VOS without laser trimming. Its output stage uses complementary common-source NMOS/PMOS transistors to deliver true rail-to-rail swing, reaching within 15 mV of V− and 20 mV of V+ at 1 mA load.
It features unity-gain stability, no phase reversal, 33 nV/√Hz voltage noise at 1 kHz, and maintains ≥50° phase margin across 2 kΩ loads. The device is fully specified over −40°C to +125°C and qualified for automotive applications per AEC-Q100.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - supports direct interfacing with Li-ion, 3.3 V, and 5 V logic rails without level-shifting. |
| Gain Bandwidth Product | 8.2 MHz - enables stable closed-loop operation up to ~100 kHz with G = 100, suitable for multipole filters and fast sensor amplification. |
| Slew Rate | 5.2 V/µs - ensures <1 µs settling to 0.01% for 2 V step inputs, critical for PA control and barcode scanner signal fidelity. |
| Input Offset Voltage (max) | 500 µV (A grade, 25°C) - reduces DC error in shunt current sensing below 100 µΩ sense resistors at 1 A full scale. |
| Input Bias Current (typ) | 0.2 pA - allows use with >100 MΩ source impedances (e.g., photodiode, high-Z pH sensors) without significant voltage error. |
| Output Swing (1 mA load) | VOH ≥ 2.92 V, VOL ≤ 35 mV @ 3 V supply - achieves >98% rail utilization, essential for buffering 3 V ADCs/DACs in portable instruments. |
| Operating Temperature | −40°C to +125°C - meets extended industrial and automotive under-hood requirements without derating. |
Pinout & Package
AD8602WARZ-R7 is packaged in an 8-lead MSOP (RM suffix), with exposed pad for thermal enhancement. Pin 1 is marked by a dot; pin numbering follows standard MSOP convention (counterclockwise from mark).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Delivers rail-to-rail buffered signal; drives 2 kΩ loads with <35 mV headroom to V− at 3 V supply. |
| 2 (–IN A) | Inverting input A | High-impedance node (0.2 pA bias); accepts signals from 0 V to V+; used in transimpedance or inverting gain stages. |
| 3 (+IN A) | Non-inverting input A | Same rail-to-rail CMVR as –IN; enables unity-gain buffers and high-side current monitor configurations. |
| 4 (V−) | Negative supply / ground reference | Return path for both amplifiers; must be low-impedance; connects to PCB ground plane via exposed pad. |
| 5 (V+) | Positive supply | Accepts 2.7–5.5 V; bypass with 0.1 µF ceramic capacitor directly to V− for stability at full bandwidth. |
| 6 (+IN B) | Non-inverting input B | Independent high-Z input for second channel; supports dual-sensor readout or differential pair front-end. |
| 7 (–IN B) | Inverting input B | Matches A-channel specs; enables matched dual-path filtering or active compensation networks. |
| 8 (OUT B) | Amplifier B output | Electrically identical to OUT A; allows independent signal paths without crosstalk (typical PSRR > 67 dB). |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | CMVR = 0 V to V+ and output swing within 15–20 mV of rails at 1 mA - eliminates need for dual supplies in 3 V microcontroller systems. |
| DigiTrim® offset calibration | 500 µV max VOS achieved post-package - removes assembly-induced stress errors, enabling precision in SOT-23/MSOP footprints. |
| No phase reversal | Guaranteed under all input overdrive conditions - prevents latch-up or system instability when inputs exceed rails during power-up or fault events. |
| Low 0.2 pA input bias current | Enables direct connection to high-impedance sources (e.g., piezoelectric sensors, pH electrodes) without guard rings or T-network compensation. |
| Automotive qualification | AEC-Q100 Grade 1 (−40°C to +125°C) - certified for engine control, battery monitoring, and ADAS sensor signal chains. |
Applications
| Current Sensing | Portable Instrumentation |
|---|---|
Use Scenario: High-side current measurement in 3 V battery-powered motor controllers using 5 mΩ shunt resistor. IC Role / Device Role / Timing Role: Precision difference amplifier with rail-to-rail input accepting 0–3 V common-mode voltage while rejecting supply ripple. Use Value: 500 µV max offset ensures <±0.1% full-scale error at 1 A; 750 µA quiescent current extends battery life beyond 1000 hours. |
Use Scenario: Signal conditioning front-end for handheld multimeter measuring mV-level thermocouple outputs. IC Role / Device Role / Timing Role: Low-noise, unity-gain buffer isolating high-Z thermocouple from ADC input capacitance. Use Value: 33 nV/√Hz noise floor preserves µV-resolution; rail-to-rail output drives 12-bit SAR ADC input without clipping. |
| Barcode Scanners | Audio Amplification |
Use Scenario: Amplifying fast-rise-time photodiode pulses (100 ns edge) from laser scan engines. IC Role / Device Role / Timing Role: High-speed transimpedance amplifier with 5.2 V/µs slew rate and <1 µs 0.01% settling. Use Value: Enables reliable decoding of 300+ lines/sec scans; 0.2 pA bias current prevents baseline drift during continuous operation. |
Use Scenario: Output driver for mono headphone amplifier in Bluetooth earbuds powered by 3.7 V Li-Po cell. IC Role / Device Role / Timing Role: Low-distortion, rail-to-rail output stage delivering 0.5 V RMS into 16 Ω load. Use Value: THD+N <0.001% at 1 kHz ensures CD-quality playback; 8 MHz GBW supports 20 kHz audio bandwidth with margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333AIDR | Zero-drift architecture; 0.02 µV/°C drift vs. AD8602WARZ-R7's 2 µV/°C; higher 35 µA supply current per amp. | Better for DC-critical applications (e.g., weigh scales) but less optimal for battery life in portable devices. | Select OPA2333AIDR when long-term DC stability dominates over quiescent power; avoid if >1 µA standby current is unacceptable. |
| MCP6V82-E/MS | Chopper-stabilized; 12 µV max VOS; 1.1 mA supply current; 10 MHz GBW; not AEC-Q100 qualified. | Superior offset spec but 1.5× higher supply current and no automotive qualification limits use in under-hood modules. | Choose MCP6V82-E/MS for lab-grade instrumentation where ultra-low offset matters more than temperature range or automotive compliance. |
Compared with OPA2333AIDR and MCP6V82-E/MS, AD8602WARZ-R7 offers the best balance of low power (750 µA), wide temperature range (−40°C to +125°C), AEC-Q100 qualification, and proven rail-to-rail performance - making it the preferred choice for cost-sensitive, battery-operated, and automotive-qualified precision analog designs.
Availability
AD8602WARZ-R7 is available at Aetrix Electronics and suitable for current sensing, portable instrumentation, barcode scanners, audio amplification, and sensor interface applications requiring stable component supply across automotive, industrial, and medical OEM programs.
Supply support for AD8602WARZ-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 AD860x family was designed specifically for precision, low-voltage, single-supply signal conditioning - targeting battery-powered instrumentation, automotive sensor interfaces, and portable medical devices where rail-to-rail operation and low quiescent current are mandatory.
FAQ
What is the maximum operating temperature for AD8602WARZ-R7?
The AD8602WARZ-R7 is rated for operation from −40°C to +125°C and is qualified per AEC-Q100 Grade 1. This specification is confirmed in the Absolute Maximum Ratings table and Electrical Characteristics section of the Rev. I datasheet. All performance parameters - including offset voltage, supply current, and output swing - are guaranteed across this full range, making AD8602WARZ-R7 suitable for under-hood automotive and industrial environments where thermal robustness is critical.
Does AD8602WARZ-R7 support true rail-to-rail input and output simultaneously?
Yes, AD8602WARZ-R7 supports true rail-to-rail input common-mode voltage (0 V to V+) and rail-to-rail output swing (within 15–20 mV of V− and V+ at 1 mA load). This is enabled by its dual-input-stage architecture (NMOS + PMOS pairs) and complementary common-source output stage. The General Description and Theory of Operation sections explicitly confirm simultaneous rail-to-rail capability, and Figures 9–10 show VOS remains stable across the full 0–V+ input range - validating functional operation at both rails.
What package type is used for AD8602WARZ-R7?
AD8602WARZ-R7 uses the 8-lead MSOP package with exposed pad (RM suffix), as confirmed in the Pin Configurations section (Figure 2) and Ordering Guide of the AD8601/AD8602/AD8604 Rev. I datasheet. The "WARZ" part number suffix maps directly to the RM package variant, and thermal resistance data (θJA = 142°C/W) is provided specifically for the MSOP configuration - distinguishing it from the SOIC (R) and other variants.
Is AD8602WARZ-R7 pin-compatible with other dual op amps in the same package?
AD8602WARZ-R7 follows the industry-standard dual op amp pinout for 8-lead MSOP: OUT A, –IN A, +IN A, V−, V+, +IN B, –IN B, OUT B (pin 1 to 8). This matches the pin assignments of OP2xx, MCP6Vxx, and TLV27x families in MSOP-8. However, functional compatibility requires verification of supply range, bandwidth, and output drive - AD8602WARZ-R7 is not a drop-in replacement for non-rail-to-rail or higher-quiescent-current devices despite identical pinout.
What is the typical supply current per amplifier for AD8602WARZ-R7 at 3 V?
The typical supply current per amplifier for AD8602WARZ-R7 is 750 µA at VS = 3 V and TA = 25°C, as specified in Table 1 (Electrical Characteristics) of the Rev. I datasheet. This value increases to 1300 µA maximum across −40°C to +125°C. Figure 36 confirms the 750 µA typ value at 25°C, and the device maintains this low quiescent draw while delivering 8 MHz bandwidth - a key differentiator versus general-purpose op amps.
AD8602WARZ-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- DigiTrim®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 6V/µs
- Gain Bandwidth Product:
- 8.4 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.2 pA
- Voltage - Input Offset:
- 80 µV
- Current - Supply:
- 750µA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD8602WARZ-R7 FAQ
1.How can I place an order for AD8602WARZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8602WARZ-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 AD8602WARZ-R7 reliable?
The price and inventory of AD8602WARZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8602WARZ-R7 is usually 5 days.
3.What payment methods are accepted for AD8602WARZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8602WARZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8602WARZ-R7?
AD8602WARZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8602WARZ-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 AD8602WARZ-R7?
For technical support, including AD8602WARZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8602WARZ-R7 requirements.
6.How does Aetrix verify that AD8602WARZ-R7 is sourced from the original manufacturer or authorized distributors?
All AD8602WARZ-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 AD8602WARZ-R7 meets industry standards.
7.What is the process for return or replacement of AD8602WARZ-R7?
All AD8602WARZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with AD8602WARZ-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 AD8602WARZ-R7 part is unused and in its original packaging.
Return procedure for AD8602WARZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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