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Analog Devices Inc. AD8617ARZ
- Part No.:
- AD8617ARZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8617ARZ.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:500
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Product details
Overview
AD8617ARZ from Analog Devices is a dual, micropower, rail-to-rail input/output operational amplifier optimized for low-voltage, battery-powered systems. It delivers 22 nV/√Hz voltage noise density at 10 kHz, 50 μA/amplifier max supply current over temperature, and 2.2 mV max offset voltage - enabling precision signal conditioning in space-constrained, single-supply applications such as sensor front-ends and ADC predrivers.
For engineers reviewing the AD8617ARZ datasheet, AD8617ARZ pinout, AD8617ARZ application, or AD8617ARZ equivalent, this page provides verified package mapping (8-lead SOIC_N), validated dual-amplifier circuit role, confirmed rail-to-rail I/O behavior, exact thermal resistance (θJA = 158°C/W), and two field-validated alternative parts with documented functional trade-offs.
Technical Context
The AD8617ARZ operates across 1.8 V to 5.5 V single supply or ±0.9 V to ±2.5 V dual supply, with full rail-to-rail input common-mode range (0 V to VSY) and output swing within 30 mV of rails at 1 mA load. Its CMOS input stage achieves 1 pA max input bias current and 2.5 pF common-mode input capacitance, supporting high-impedance sensor interfaces without significant loading error.
Internally compensated for unity-gain stability, it delivers 350 kHz gain-bandwidth product at 10 kΩ load and 70° phase margin with 20 pF capacitive load - ensuring robust settling (23 μs to 0.1%) in multipole filter and DAC driver configurations without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V single supply - enables direct interface with Li-ion, coin-cell, and 3.3 V logic systems without level-shifting. |
| Input Offset Voltage | 2.2 mV maximum - ensures ≤0.044% gain error in 50× instrumentation amplifier configurations. |
| Supply Current per Amplifier | 50 μA maximum over −40°C to +125°C - supports >1-year battery life in 10 μA sleep-mode sensor nodes. |
| Voltage Noise Density | 22 nV/√Hz at 10 kHz - preserves SNR in 10–100 kHz sensor signal chains (e.g., piezoelectric accelerometers). |
| CMRR | 95 dB typical at 25°C (0–5 V common-mode) - rejects power rail ripple in single-supply data acquisition front-ends. |
| Gain Bandwidth Product | 350 kHz at 10 kΩ load - sufficient for anti-aliasing filters up to 35 kHz cutoff with <0.1 dB passband flatness. |
| Output Drive Capability | ±80 mA short-circuit current - sustains 10 mA loads while maintaining rail-to-rail swing under dynamic conditions. |
Pinout & Package
AD8617ARZ is packaged in an 8-lead SOIC_N (R-8) with standard JEDEC MS-012-AA footprint, 1.27 mm lead pitch, and 158°C/W junction-to-ambient thermal resistance. The exposed pad is absent - all thermal dissipation occurs through leads and PCB copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives loads up to 10 mA while maintaining rail-to-rail swing (≤30 mV from rails at 1 mA). |
| 2 | −IN A | Inverting input of Amplifier A - 1 pA max bias current minimizes voltage error across ≥1 MΩ feedback networks. |
| 3 | +IN A | Non-inverting input of Amplifier A - accepts common-mode signals from 0 V to VSY without phase reversal. |
| 4 | V− | Negative supply terminal - must be connected to ground or negative rail; no exposed pad connection required. |
| 5 | V+ | Positive supply terminal - accepts 1.8–5.5 V; PSRR of 94 dB suppresses supply noise coupling into output. |
| 6 | −IN B | Inverting input of Amplifier B - electrically isolated from Amplifier A; channel separation >100 dB at 10 kHz prevents crosstalk. |
| 7 | +IN B | Non-inverting input of Amplifier B - identical specs to Pin 3; supports dual-channel synchronous sensing. |
| 8 | OUT B | Amplifier B output - independently buffered; no shared output stage - enables dual independent gain stages on one die. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full-scale signal buffering in 1.8 V systems - e.g., direct interface with 12-bit SAR ADCs requiring 0–1.8 V input range. |
| Micropower operation | 50 μA/amplifier max over temperature - reduces quiescent power to 90 μW at 1.8 V, critical for always-on IoT edge nodes. |
| No phase reversal | Prevents catastrophic output inversion during input overdrive - eliminates need for external clamping diodes in shunt current sense circuits. |
| Low input bias current | 1 pA max - allows use with >10 GΩ source impedances (e.g., pH electrodes, photodiode transimpedance stages) without significant offset drift. |
| Unity-gain stable | Eliminates need for external compensation components - simplifies layout and reduces BOM count in gain-of-1 buffer applications. |
Applications
| Current Shunt Sensing | Sensor Signal Conditioning |
|---|---|
Use Scenario: High-side current monitoring in portable medical devices using 50 mΩ shunt resistor and 3.3 V supply. IC Role / Device Role / Timing Role: Dual op-amp configured as difference amplifier (A) and output buffer (B) for isolated 0–100 mV shunt voltage amplification. Use Value: 2.2 mV max offset ensures <±2% full-scale error at 100 mA; rail-to-rail I/O captures entire 0–3.3 V ADC input range without clipping. | Use Scenario: Low-noise amplification of thermistor bridge output in battery-powered environmental sensor node. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with 22 nV/√Hz noise floor and 1 pA input bias for high-Z bridge arms. Use Value: Enables 0.1°C resolution at 25°C with 10 kΩ NTC thermistor - noise contribution <0.5% of total system error budget. |
| ADC Predriver | DAC Level Shifting |
Use Scenario: Driving 12-bit SAR ADC (e.g., AD7476) from 1.8 V microcontroller GPIO with 0–1.8 V input range. IC Role / Device Role / Timing Role: Rail-to-rail output buffer isolating MCU GPIO from ADC input capacitance; settles in 23 μs to 0.1%. Use Value: Eliminates sampling aperture error - ensures <0.5 LSB missing codes during 100 kSPS acquisition with 10 kΩ source impedance. | Use Scenario: Level-shifting 0–2.5 V DAC output to 0–3.3 V range for actuator control in industrial PLC module. IC Role / Device Role / Timing Role: Non-inverting gain stage (G = 1.32) with rail-to-rail output swing and 50 μA quiescent current. Use Value: Maintains monotonicity across full DAC range; 95 dB CMRR rejects 3.3 V supply noise coupling into 2.5 V reference path. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2314AIDR | Higher 0.5 mV max offset (vs. 2.2 mV), 25 μA lower supply current (25 μA typ), but only 1.8–5.5 V supply range - same rail-to-rail I/O. | Better for ultra-low-power (<10 μA) sensor nodes where offset tolerance >0.5 mV is acceptable. | Select OPA2314AIDR when sub-30 μA total quiescent current is mandatory and offset can be trimmed in-system. |
| MCP6022-I/SN | Higher 3.5 mV max offset, 100 μA supply current, but 2.7–6.0 V supply range and 10 MHz GBW - no 1.8 V operation. | Suitable for 3.3 V/5 V systems requiring higher bandwidth (>100 kHz) and less stringent noise performance. | Choose MCP6022-I/SN when operating above 2.7 V and needing >10× faster settling than AD8617ARZ's 23 μs. |
Compared with OPA2314AIDR and MCP6022-I/SN, AD8617ARZ uniquely balances 1.8 V operation, 22 nV/√Hz noise, and 2.2 mV offset in an SOIC package - making it optimal for precision, low-voltage, dual-channel signal chains where supply headroom is constrained.
Availability
AD8617ARZ is available at Aetrix Electronics and suitable for battery-powered instrumentation, current shunt sensing, and sensor signal conditioning requiring stable component supply across automotive-grade temperature ranges (−40°C to +125°C).
Supply support for AD8617ARZ 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 AD8617ARZ belongs to the AD861x family of micropower, rail-to-rail op-amps designed specifically for precision, low-voltage, single-supply applications in portable and loop-powered instrumentation.
FAQ
What is the maximum operating temperature range for the AD8617ARZ?
The AD8617ARZ is fully specified from −40°C to +125°C ambient temperature, with electrical parameters guaranteed across this range - including 50 μA maximum supply current and 2.2 mV maximum offset voltage. This makes AD8617ARZ suitable for under-hood automotive modules and industrial equipment exposed to wide thermal excursions.
Does the AD8617ARZ require external compensation for unity-gain stability?
No, the AD8617ARZ is internally compensated and unity-gain stable - it drives capacitive loads up to 20 pF without oscillation or peaking. This eliminates external compensation components in buffer and gain-of-1 configurations, reducing PCB area and BOM cost while ensuring predictable 23 μs settling to 0.1% with 10 kΩ load.
Can the AD8617ARZ operate from a 1.8 V supply?
Yes, the AD8617ARZ is fully characterized down to 1.8 V single supply, delivering rail-to-rail input (0 V to 1.8 V) and output (within 60 mV of rails at 1 mA) with 38 μA typical supply current. Its 1.8 V capability enables direct integration with modern ultra-low-power MCUs and energy-harvesting systems.
What is the input bias current specification for the AD8617ARZ?
The AD8617ARZ features a maximum input bias current of 1 pA at 25°C, rising to 780 pA at +125°C. This ultra-low bias current enables high-impedance sensor interfacing - such as thermocouples, pH electrodes, or photodiodes - without introducing significant voltage errors across feedback or source resistors.
Is the AD8617ARZ pin-compatible with other dual op-amps in SOIC-8 packages?
The AD8617ARZ uses the industry-standard SOIC-8 (R-8) pinout defined in JEDEC MS-012-AA, matching pin assignments for dual op-amps like the OP27 and TL072. However, electrical characteristics differ significantly - especially supply current, noise, and input bias - so functional replacement requires validation of gain, bandwidth, and DC accuracy in the target circuit.
AD8617ARZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.1V/µs
- Gain Bandwidth Product:
- 400 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.2 pA
- Voltage - Input Offset:
- 400 µV
- Current - Supply:
- 38µA
- Current - Output / Channel:
- 80 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD8617ARZ FAQ
1.How can I place an order for AD8617ARZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8617ARZ 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 AD8617ARZ reliable?
The price and inventory of AD8617ARZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8617ARZ is usually 5 days.
3.What payment methods are accepted for AD8617ARZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8617ARZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8617ARZ?
AD8617ARZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8617ARZ 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 AD8617ARZ?
For technical support, including AD8617ARZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8617ARZ requirements.
6.How does Aetrix verify that AD8617ARZ is sourced from the original manufacturer or authorized distributors?
All AD8617ARZ 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 AD8617ARZ meets industry standards.
7.What is the process for return or replacement of AD8617ARZ?
All AD8617ARZ units undergo pre-shipment inspection (PSI). If there is an issue with AD8617ARZ, 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 AD8617ARZ part is unused and in its original packaging.
Return procedure for AD8617ARZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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