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Analog Devices Inc. AD8601WARTZ-R7
- Part No.:
- AD8601WARTZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AD8601WARTZ-R7.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:5,651
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Product details
Overview
AD8601WARTZ-R7 from Analog Devices is a precision CMOS single-supply rail-to-rail input/output operational amplifier in a 5-lead SOT-23 package. It delivers 500 µV max offset voltage, 8 MHz gain bandwidth, 5 V/µs slew rate, 750 µA supply current, and operates from 2.7 V to 5.5 V - enabling high-accuracy signal conditioning in battery-powered instrumentation and shunt-based current sensing.
For engineers reviewing the AD8601WARTZ-R7 datasheet, AD8601WARTZ-R7 pinout, AD8601WARTZ-R7 application, or AD8601WARTZ-R7 equivalent, key selection criteria include rail-to-rail I/O swing at low supply voltage, sub-1 mV output saturation near rails under light load, DigiTrim®-enabled offset stability over temperature, and qualification for automotive extended temperature (−40°C to +125°C) operation.
Technical Context
The AD8601WARTZ-R7 uses Analog Devices' patented DigiTrim® post-package trimming to achieve low offset without laser trimming - correcting mechanical stress-induced errors in the 5-lead SOT-23 package. Its dual-input-stage architecture (parallel NMOS and PMOS differential pairs) enables true rail-to-rail common-mode input range (0 V to VS) and seamless transition across the 1.0–1.5 V below VS overlap region.
Output stage employs complementary NMOS/PMOS common-source configuration delivering rail-to-rail swing: within 20 mV of VS and 15 mV of GND at 1 mA load. Open-loop gain is 80 dB typical (RL = 2 kΩ), with phase margin of 50° at 3 V and 55° at 5 V - ensuring unity-gain stability without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - supports direct interface with Li-ion, 3.3 V, and 5 V logic systems without level shifting. |
| Offset Voltage (Max) | 500 µV at 25°C - ensures ≤0.5 mV error in 10-bit ADC front-end with 3.3 V full-scale range. |
| Gain Bandwidth Product | 8.2 MHz - enables stable closed-loop gain ≥10 up to 800 kHz for anti-aliasing or active filter use. |
| Slew Rate | 5.2 V/µs - supports clean 1 VPP output at 500 kHz without slewing distortion. |
| Input Bias Current | 0.2 pA typical - allows >100 MΩ source impedances (e.g., pH sensors, photodiodes) without significant DC error. |
| Operating Temperature | −40°C to +125°C - qualified for automotive engine control, industrial motor drives, and under-hood electronics. |
| Output Drive | ±30 mA - sufficient to drive 2 kΩ loads while maintaining rail-to-rail swing and <0.01% settling in <0.5 µs. |
Pinout & Package
AD8601WARTZ-R7 is housed in a 5-lead SOT-23 (RJ suffix) package with exposed pad for thermal enhancement. Pin 1 is OUT, Pin 2 is V− (GND), Pin 3 is +IN, Pin 4 is −IN, and Pin 5 is V+.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Rail-to-rail capable: swings within 20 mV of V+ and 15 mV of V− at 1 mA load; stable into 100 pF capacitive loads. |
| 2 (V−) | Negative supply / ground reference | Return path for input bias current and output sink current; must be low-impedance for PSRR >67 dB. |
| 3 (+IN) | Non-inverting input | CMOS input with 0.2 pA bias current; accepts 0 V to V+ common-mode range; no phase reversal on overdrive. |
| 4 (−IN) | Inverting input | Matches +IN in bias current and offset; enables precision transimpedance or difference amplifier configurations. |
| 5 (V+) | Positive supply | Accepts 2.7 V to 5.5 V; internal ESD protection rated to 2 kV HBM; PSRR = 80 dB typical at DC. |
Key Features
| Feature | Design Value |
|---|---|
| DigiTrim® offset calibration | Eliminates assembly-induced offset drift; achieves 500 µV max without laser trimming or extra pins. |
| Rail-to-rail input & output | Full 0 V to VS input range and output swing to within 15–20 mV of rails - maximizes dynamic range in 3 V systems. |
| No phase reversal | Guaranteed linear response during input overdrive - prevents latch-up or signal inversion in sensor front-ends. |
| Low 1/f noise | 0.1 Hz to 10 Hz input voltage noise = 0.5 µVPP - critical for precision DC-coupled measurement chains. |
| Automotive qualification | AEC-Q100 Grade 1 compliant (−40°C to +125°C); validated for engine control, battery monitoring, and ADAS subsystems. |
Applications
| Current Sensing | Portable Audio Amplification |
|---|---|
Use Scenario: High-side shunt current monitoring in 12 V automotive ECUs with 50 mΩ sense resistor. IC Role / Device Role / Timing Role: Precision transimpedance amplifier converting 0–10 A sensed current to 0–2.5 V output for MCU ADC. Use Value: 500 µV offset ensures <10 mA measurement error at zero current; rail-to-rail output fully utilizes 3.3 V ADC range. |
Use Scenario: Line driver in Bluetooth headset with 3.3 V supply and 16 Ω earpiece load. IC Role / Device Role / Timing Role: Single-supply AC-coupled buffer amplifying DAC output before Class AB headphone driver. Use Value: 8 MHz GBW and 5 V/µs slew rate deliver <0.01% THD+N at 20 kHz; low 33 nV/√Hz noise preserves audio fidelity. |
| Multipole Active Filters | ASIC Interface Conditioning |
Use Scenario: 4th-order low-pass Bessel filter for anti-aliasing prior to SAR ADC in portable medical device. IC Role / Device Role / Timing Role: Unity-gain stable op amp implementing 2-pole sections with precise pole placement. Use Value: 80 dB open-loop gain ensures <0.1% gain error in 2nd-order sections; low input bias avoids RC time constant drift. |
Use Scenario: Input protection and level-shifting for analog inputs of mixed-signal ASIC in industrial PLC module. IC Role / Device Role / Timing Role: Rail-to-rail buffer isolating ASIC analog inputs from noisy PCB traces and ESD events. Use Value: 2 kV HBM ESD rating and rail-to-rail I/O allow direct connection to ASIC pins without external clamps or resistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA333AIDBVR | Zero-drift auto-zero architecture; 10 µV max offset; higher 350 µA supply current; 350 kHz GBW. | Better DC accuracy but lower speed; unsuitable for >100 kHz filter or audio use. | Select when ultra-low offset drift (<0.05 µV/°C) outweighs bandwidth needs. |
| MCP6001T-E/OT | General-purpose CMOS op amp; 1.5 mV max offset; 100 kHz GBW; 100 µA supply current. | Lower cost but 3× higher offset and 80× lower bandwidth; not automotive-qualified. | Select for non-critical, cost-sensitive consumer applications where −40°C to +85°C suffices. |
Compared with OPA333AIDBVR, AD8601WARTZ-R7 trades ultra-low drift for 23× higher bandwidth and lower quiescent current; compared with MCP6001T-E/OT, it delivers 3× lower offset, 82× higher GBW, and AEC-Q100 qualification - making it optimal for automotive and portable precision signal chains.
Availability
AD8601WARTZ-R7 is available at Aetrix Electronics and suitable for current sensing, portable audio amplification, multipole active filters, and ASIC interface conditioning requiring stable component supply across automotive, industrial, and medical design cycles.
Supply support for AD8601WARTZ-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 applications - targeting battery-powered instrumentation, automotive sensor interfaces, and portable medical devices demanding rail-to-rail performance and AEC-Q100 reliability.
FAQ
What is the maximum operating temperature range for the AD8601WARTZ-R7?
The AD8601WARTZ-R7 is specified for operation from −40°C to +125°C and is AEC-Q100 Grade 1 qualified. This extended industrial temperature range is confirmed in the Rev. I datasheet, Table 1 and General Description section, making AD8601WARTZ-R7 suitable for under-hood automotive and high-ambient industrial environments.
Does the AD8601WARTZ-R7 require external compensation for unity-gain stability?
No, the AD8601WARTZ-R7 is unity-gain stable per the datasheet's "Features" and "Theory of Operation" sections. Its internal compensation ensures stable operation with closed-loop gains ≥1, verified by 50° phase margin at 3 V and 55° at 5 V - eliminating need for external capacitors in standard buffer or gain-of-one configurations.
What is the typical input bias current of the AD8601WARTZ-R7, and how does it affect high-impedance sensor interfaces?
The AD8601WARTZ-R7 has a typical input bias current of 0.2 pA at 25°C, with ≤100 pA across −40°C to +125°C. This enables direct interfacing with high-impedance sources like photodiodes (>100 MΩ) or pH electrodes without measurable DC error - a key advantage over bipolar-input op amps with nanoamp-level bias currents.
Can the AD8601WARTZ-R7 drive capacitive loads, and what is its recommended maximum?
Yes, the AD8601WARTZ-R7 can drive capacitive loads up to 100 pF while maintaining stability and <0.01% settling, as shown in Figure 33 and Figure 34 of the datasheet. For loads >100 pF, an isolation resistor (e.g., 10–50 Ω) between output and capacitance is recommended to prevent peaking or oscillation.
Is the AD8601WARTZ-R7 pin-compatible with other members of the AD860x family?
No - AD8601WARTZ-R7 is a single-amplifier variant in 5-lead SOT-23. AD8602 (dual) uses 8-lead MSOP/SOIC, and AD8604 (quad) uses 14-lead TSSOP/SOIC or 16-lead QSOP. Pinouts differ entirely; only functional equivalence exists across the family, not mechanical or electrical pin compatibility.
AD8601WARTZ-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 6V/µs
- Gain Bandwidth Product:
- 8.4 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 200 nA
- Voltage - Input Offset:
- 1.3 mV
- Current - Supply:
- 750µA
- 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:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
AD8601WARTZ-R7 FAQ
1.How can I place an order for AD8601WARTZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8601WARTZ-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 AD8601WARTZ-R7 reliable?
The price and inventory of AD8601WARTZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8601WARTZ-R7 is usually 5 days.
3.What payment methods are accepted for AD8601WARTZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8601WARTZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8601WARTZ-R7?
AD8601WARTZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8601WARTZ-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 AD8601WARTZ-R7?
For technical support, including AD8601WARTZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8601WARTZ-R7 requirements.
6.How does Aetrix verify that AD8601WARTZ-R7 is sourced from the original manufacturer or authorized distributors?
All AD8601WARTZ-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 AD8601WARTZ-R7 meets industry standards.
7.What is the process for return or replacement of AD8601WARTZ-R7?
All AD8601WARTZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with AD8601WARTZ-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 AD8601WARTZ-R7 part is unused and in its original packaging.
Return procedure for AD8601WARTZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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