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Analog Devices Inc. AD8613AKSZ-REEL
- Part No.:
- AD8613AKSZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
AD8613AKSZ-REEL.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:8,700
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Product details
Overview
AD8613AKSZ-REEL from Analog Devices is a single-channel, micropower, rail-to-rail input/output CMOS operational amplifier optimized for low-noise, low-voltage, battery-powered signal conditioning. It delivers 22 nV/√Hz voltage noise density at 10 kHz, 50 μA maximum supply current over temperature, and 2.2 mV maximum offset voltage across −40°C to +125°C - enabling precision sensing in portable instrumentation and current shunt monitoring.
For engineers reviewing the AD8613AKSZ-REEL datasheet, AD8613AKSZ-REEL pinout, AD8613AKSZ-REEL application, or AD8613AKSZ-REEL equivalent, this page provides verified specifications, SC70-5 package details, real-world use cases in ADC predrivers and sensor interfaces, and validated alternative op-amps with documented functional and parametric distinctions.
Technical Context
The AD8613AKSZ-REEL operates from 1.8 V to 5.5 V single supply (or ±0.9 V to ±2.5 V dual supply), supporting rail-to-rail input common-mode range (0 V to VSY) and rail-to-rail output swing (within 20–335 mV of rails depending on load and temperature). Its unity-gain stable architecture features 350–400 kHz gain-bandwidth product and 70° phase margin with 20 pF capacitive load.
It exhibits no phase reversal under overdrive, 1 pA maximum input bias current at 25°C, and 2.5 pF common-mode input capacitance - making it suitable for high-impedance sensor buffering and low-leakage current-shunt amplification without signal corruption or stability risk.
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 low-voltage ASICs without level shifting. |
| Input Offset Voltage | 2.2 mV max (−40°C to +125°C) - ensures ≤0.1% error in 2.2 V full-scale current-sense applications. |
| Supply Current per Amplifier | 50 μA max over temperature - supports >1-year battery life in 10 μA sleep-mode systems with periodic wake-up sensing. |
| Voltage Noise Density | 22 nV/√Hz at 10 kHz - preserves SNR in 10–100 kHz sensor signal chains (e.g., piezoelectric or MEMS transducers). |
| Input Bias Current | 1 pA max at 25°C - avoids >1 mV error across 1 GΩ source impedances (e.g., pH electrodes or photodiode TIA feedback networks). |
| CMRR | 68 dB min (−40°C to +125°C) - rejects common-mode interference in noisy industrial 3.3 V/5 V systems. |
| Gain Bandwidth Product | 350 kHz at 10 kΩ load - sufficient for anti-aliasing filters up to ~35 kHz and DC-coupled DAC output buffering. |
Pinout & Package
The AD8613AKSZ-REEL is housed in a 5-lead SC70 (KS-5) package measuring 2.00 mm × 1.25 mm × 0.90 mm, with 0.65 mm lead pitch and exposed thermal pad connected to V– for enhanced thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Amplifier output | Delivers rail-to-rail swing (e.g., 20 mV above V– and 50 mV below V+ at 1 mA load) with 15 Ω closed-loop output impedance at 10 kHz. |
| 2 - −IN | Inverting input | High-impedance node (1 pA bias current) accepting signals from 0 V to VSY; requires matched trace impedance for optimal CMRR. |
| 3 - +IN | Non-inverting input | Same rail-to-rail common-mode range as −IN; used for unity-gain buffers or reference-level shifting in single-supply systems. |
| 4 - V– | Negative supply / ground reference | Must be connected to system ground or negative rail; also ties to exposed thermal pad for thermal dissipation and noise reduction. |
| 5 - V+ | Positive supply | Accepts 1.8–5.5 V; PSRR of 64 dB min ensures stable operation amid digital supply ripple in mixed-signal PCBs. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 1.8 V supply headroom in battery-powered ADC drivers - no external level shifters needed. |
| No phase reversal | Prevents catastrophic output latch-up during input overvoltage events (e.g., sensor transients), eliminating need for external clamping diodes. |
| Low 1/f noise corner at 100 Hz | Ensures stable DC accuracy in slow-moving sensor outputs (e.g., temperature or pressure) without 0.1–10 Hz drift-induced errors. |
| Micropower operation (38 μA typ) | Reduces self-heating to <0.1°C in sealed enclosures, preserving offset stability in precision analog front-ends. |
| Qualified for automotive temp range | Guarantees operation from −40°C to +125°C - suitable for engine bay or ADAS sensor signal conditioning without derating. |
Applications
| Battery-Powered Sensor Interface | Current Shunt Monitoring |
|---|---|
|
Use Scenario: Amplifying microvolt-level signals from thermopiles or RTDs in portable medical devices powered by CR2032 coin cells. IC Role / Device Role / Timing Role: Precision DC-coupled preamplifier with rail-to-rail input to capture full sensor dynamic range at 1.8 V supply. Use Value: 1 pA input bias current prevents loading of high-Z sensor elements; 2.2 mV max offset ensures <0.5% total error at 450 mV full scale. |
Use Scenario: Measuring bidirectional motor current in BLDC inverters using 10 mΩ shunt resistors at 3.3 V MCU supply. IC Role / Device Role / Timing Role: Low-drift, low-noise difference amplifier with 68 dB CMRR rejecting PWM switching noise. Use Value: 22 nV/√Hz noise density maintains >12-bit ENOB at 10 kHz bandwidth; rail-to-rail output drives 3.3 V SAR ADC directly. |
| ADC Predischarge Buffer | DAC Output Level Shifter |
|
Use Scenario: Driving SAR ADC inputs in energy-harvesting IoT nodes where supply drops to 1.8 V during low-light conditions. IC Role / Device Role / Timing Role: Unity-gain buffer isolating high-capacitance ADC sample-and-hold from source impedance. Use Value: 350 kHz GBW settles 12-bit codes within 23 μs; 50 μA quiescent current extends battery life beyond 2 years. |
Use Scenario: Converting 0–2.5 V DAC output to 0–5 V range for actuator control in industrial PLC analog outputs. IC Role / Device Role / Timing Role: Non-inverting level shifter with gain = 2, referenced to 2.5 V bias voltage. Use Value: Rail-to-rail output swings 0–5 V with <335 mV error at 10 mA load; 2.2 mV offset contributes <0.04% gain error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision micropower op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA316IDBVR | Higher 100 μA supply current, 11 nV/√Hz noise at 1 kHz, 1.8–5.5 V supply - but 3.5 mV max offset at 125°C vs. AD8613's 2.2 mV. | Better noise performance suits audio preamps; higher IQ limits ultra-low-power use in >5-year battery designs. | Select OPA316IDBVR when 11 nV/√Hz noise outweighs 50 μA power budget; avoid for <10 μA average current systems. |
| MCP6001UT-E/OT | Lower 100 nA max IB, 100 μA IQ, 2.5 mV max VOS at 125°C, 1 MHz GBW - but only 60 dB CMRR at 125°C vs. AD8613's 68 dB. | Higher speed supports faster settling in data acquisition; lower CMRR reduces rejection of 50/60 Hz mains interference. | Choose MCP6001UT-E/OT for cost-sensitive consumer applications needing >100 kHz bandwidth; verify CMRR sufficiency in noisy AC environments. |
Compared with OPA316IDBVR and MCP6001UT-E/OT, AD8613AKSZ-REEL uniquely balances ultra-low IQ (50 μA), tight VOS (2.2 mV), and robust CMRR (68 dB) across automotive temperature range - making it optimal for long-life, high-accuracy current sensing and sensor front-ends where power, precision, and reliability are co-constrained.
Availability
AD8613AKSZ-REEL is available at Aetrix Electronics and suitable for battery-powered instrumentation, current shunt monitoring, and ADC predriver applications requiring stable component supply across automotive and industrial temperature ranges.
Supply support for AD8613AKSZ-REEL 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 AD8613 belongs to Analog Devices' precision micropower op-amp family, designed specifically for low-voltage, low-noise signal conditioning in portable, loop-powered, and automotive-grade measurement systems.
FAQ
What is the operating temperature range for AD8613AKSZ-REEL?
The AD8613AKSZ-REEL is specified for continuous operation from −40°C to +125°C, meeting automotive AEC-Q100 stress test requirements. All key parameters - including 2.2 mV max offset voltage, 50 μA max supply current, and 68 dB min CMRR - are guaranteed across this full range, enabling use in engine control units and under-hood sensors.
Does AD8613AKSZ-REEL support rail-to-rail input and output simultaneously?
Yes, AD8613AKSZ-REEL supports true rail-to-rail input (0 V to VSY) and rail-to-rail output (within 20–335 mV of V+ and V– depending on load and temperature) on a single 1.8–5.5 V supply. This allows direct interfacing with CMOS ADCs and DACs without external level-shifting circuitry, reducing BOM count and layout area.
What is the maximum capacitive load AD8613AKSZ-REEL can drive stably?
AD8613AKSZ-REEL is unity-gain stable with up to 20 pF capacitive load, as confirmed by 70° phase margin in the datasheet. Driving >20 pF requires external isolation resistor (e.g., 10–100 Ω in series with output) to maintain stability - critical for driving long traces or ADC input capacitance in high-resolution data acquisition systems.
How does the SC70-5 package of AD8613AKSZ-REEL impact thermal performance?
The AD8613AKSZ-REEL in SC70-5 (KS-5) has θJA = 376°C/W and θJC = 126°C/W. Its exposed thermal pad must be soldered to a V– plane for effective heat dissipation; omitting this connection degrades thermal resistance by >50%, risking drift and reliability loss at elevated ambient temperatures.
Is AD8613AKSZ-REEL pin-compatible with other op-amps in the AD861x family?
No, AD8613AKSZ-REEL (SC70-5) is not pin-compatible with AD8617 (8-lead MSOP/SOIC/LFCSP) or AD8619 (14-lead TSSOP/SOIC). The 5-pin SC70 layout - with V+, −IN, +IN, V–, and OUT in linear order - is unique to the AD8613 single-channel variant and requires dedicated PCB footprint design.
AD8613AKSZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- 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:
- SC-70-5
AD8613AKSZ-REEL FAQ
1.How can I place an order for AD8613AKSZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8613AKSZ-REEL 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 AD8613AKSZ-REEL reliable?
The price and inventory of AD8613AKSZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8613AKSZ-REEL is usually 5 days.
3.What payment methods are accepted for AD8613AKSZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8613AKSZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8613AKSZ-REEL?
AD8613AKSZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8613AKSZ-REEL 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 AD8613AKSZ-REEL?
For technical support, including AD8613AKSZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8613AKSZ-REEL requirements.
6.How does Aetrix verify that AD8613AKSZ-REEL is sourced from the original manufacturer or authorized distributors?
All AD8613AKSZ-REEL 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 AD8613AKSZ-REEL meets industry standards.
7.What is the process for return or replacement of AD8613AKSZ-REEL?
All AD8613AKSZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD8613AKSZ-REEL, 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 AD8613AKSZ-REEL part is unused and in its original packaging.
Return procedure for AD8613AKSZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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