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Analog Devices Inc. AD8613AUJZ-R2
- Part No.:
- AD8613AUJZ-R2
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
AD8613AUJZ-R2.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,068
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Product details
Overview
AD8613AUJZ-R2 from Analog Devices is a single-channel, micropower, rail-to-rail input/output CMOS operational amplifier optimized for low-noise, low-voltage battery-powered systems. 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 - enabling precision signal conditioning in space-constrained, energy-sensitive applications such as current shunt sensing and sensor front-ends.
For engineers reviewing the AD8613AUJZ-R2 datasheet, AD8613AUJZ-R2 pinout, AD8613AUJZ-R2 application, or AD8613AUJZ-R2 equivalent, key selection criteria include its 1.8 V to 5.5 V single-supply operation, 1 pA max input bias current, rail-to-rail swing capability, and TSOT-23-5 packaging - all critical for low-power analog signal chains in portable instrumentation and loop-powered devices.
Technical Context
The AD8613AUJZ-R2 implements a CMOS input stage with ultra-low input bias current (≤1 pA) and rail-to-rail input common-mode range (0 V to VS), supporting direct interfacing with wide-swing ASICs and CMOS ADCs/DACs. Its unity-gain stable architecture achieves 350–400 kHz gain-bandwidth product with 70° phase margin into 20 pF loads.
It operates across −40°C to +125°C with guaranteed performance: 50 μA max supply current, 2.2 mV max offset voltage, and 22 nV/√Hz noise at 10 kHz. The device avoids phase reversal under overdrive and maintains 68 dB CMRR and 64 dB PSRR over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V single supply - enables direct integration into Li-ion, coin-cell, and 3.3 V/5 V systems without level-shifting. |
| Input Bias Current | ≤1 pA max at 25°C - preserves accuracy in high-impedance sensor interfaces and photodiode amplifiers. |
| Offset Voltage | ≤2.2 mV max over −40°C to +125°C - ensures stable DC accuracy in shunt-based current measurement without trimming. |
| Voltage Noise Density | 22 nV/√Hz at 10 kHz - supports low-noise amplification of microvolt-level sensor outputs in bandwidth-critical paths. |
| Quiescent Current | 50 μA/amplifier max over temperature - extends battery life in always-on monitoring circuits and wearable sensors. |
| Output Swing | Rail-to-rail input and output - delivers full dynamic range when driving 12-bit+ SAR ADCs or low-voltage DACs. |
| Gain-Bandwidth Product | 350 kHz (RL = 10 kΩ) - sufficient for anti-aliasing filters, multipole active filters, and slow-control-loop feedback. |
Pinout & Package
AD8613AUJZ-R2 is housed in a 5-lead TSOT-23 package (UJ-5), measuring 2.90 mm × 1.60 mm × 0.80 mm with 0.65 mm lead pitch. This thermally enhanced, surface-mount package supports high-density PCB layouts and offers θJA = 207°C/W for reliable operation in compact enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Amplifier output | Delivers rail-to-rail sourced/sunk output; drives 10 mA load with ≤335 mV drop from rails at 125°C. |
| 2 - −IN | Inverting input | High-impedance CMOS node; accepts input common-mode voltage from V− to V+ (rail-to-rail). |
| 3 - +IN | Non-inverting input | High-impedance CMOS node; matched to −IN for low input offset and drift. |
| 4 - V− | Negative supply / ground reference | Must be connected to system ground or negative rail; exposed pad (if present) ties to this pin for thermal and electrical integrity. |
| 5 - V+ | Positive supply | Accepts 1.8–5.5 V; internal regulation ensures stable biasing across supply range and temperature. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal | Prevents output latch-up during input overvoltage - critical for robustness in unconditioned sensor inputs and industrial transients. |
| Rail-to-rail I/O | Enables full utilization of ADC/DAC input ranges in 1.8 V and 3.3 V systems, maximizing SNR without external level shifters. |
| Micropower operation | 50 μA max supply current allows continuous operation on coin cells for >10 years in low-duty-cycle IoT nodes. |
| Low input bias current | 1 pA max eliminates significant error in high-Z sources (e.g., pH electrodes, piezoelectric sensors, photodiodes). |
| Automotive-qualified variants available | AD8613W derivatives meet AEC-Q100 Grade 1; AD8613AUJZ-R2 itself is commercial-grade but shares identical electrical specs. |
Applications
| Battery-Powered Instrumentation | Current Shunt Sensing |
|---|---|
|
Use Scenario: Portable multimeter front-end amplifying mV-level voltage drops across precision shunts. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with rail-to-rail input to capture full shunt voltage swing at 1.8 V supply. Use Value: 2.2 mV max offset and 1 pA input bias minimize zero-error and leakage-induced gain error in sub-100 μA current measurements. |
Use Scenario: High-side or low-side current monitoring in battery management systems (BMS) and power supplies. IC Role / Device Role / Timing Role: Differential or single-ended amplifier buffering shunt voltage before ADC digitization. Use Value: Rail-to-rail output ensures full-scale use of 12-bit ADC input range even at 1.8 V, improving resolution by ≥1 LSB. |
| Sensor Signal Conditioning | ADC Predriver / DAC Level Shifter |
|
Use Scenario: Amplifying low-amplitude outputs from thermistors, RTDs, or MEMS pressure sensors in wearables. IC Role / Device Role / Timing Role: Low-noise, low-drift gain block with 22 nV/√Hz noise and 4.5 μV/°C max drift. Use Value: Enables <1°C temperature measurement accuracy over −40°C to +85°C without calibration in compact form factors. |
Use Scenario: Interfacing between low-voltage microcontrollers (1.8 V IO) and higher-voltage ADCs/DACs (3.3 V or 5 V). IC Role / Device Role / Timing Role: Level-shifting buffer with rail-to-rail input accepting 0–1.8 V and outputting 0–3.3 V. Use Value: Eliminates need for discrete level-shifters or charge pumps, reducing BOM count and board area in mixed-voltage systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA316IDBVR | Higher quiescent current (100 μA), lower noise (11 nV/√Hz), same 5-pin SOT-23 package. | Better suited for noise-critical, non-battery-limited applications; less optimal for multi-year coin-cell operation. | Select OPA316IDBVR when voltage noise is primary constraint and power budget allows ≥2× AD8613AUJZ-R2's supply current. |
| MCP6001UT-I/OT | Lower cost, higher offset (4.5 mV max), higher bias current (100 pA), same supply range and package. | Acceptable for cost-sensitive consumer electronics where ±1% gain accuracy suffices and sensor impedance <100 kΩ. | Choose MCP6001UT-I/OT for high-volume, non-precision applications where AD8613AUJZ-R2's low-offset/low-bias advantages are unnecessary. |
Compared with OPA316IDBVR and MCP6001UT-I/OT, AD8613AUJZ-R2 uniquely balances ultra-low power (50 μA), ultra-low bias current (1 pA), and moderate noise (22 nV/√Hz) in a qualified TSOT-23 package - making it the preferred choice for long-life, high-impedance, battery-operated measurement systems.
Availability
AD8613AUJZ-R2 is available at Aetrix Electronics and suitable for battery-powered instrumentation, current shunt sensing, and sensor signal conditioning requiring stable component supply across automotive, industrial, and medical OEM programs.
Supply support for AD8613AUJZ-R2 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-power signal conditioning in portable and loop-powered instrumentation where bias current, noise, and supply current must be minimized without sacrificing DC accuracy.
FAQ
What is the operating temperature range for AD8613AUJZ-R2?
The AD8613AUJZ-R2 is specified for continuous operation from −40°C to +125°C. All key parameters - including offset voltage (≤2.2 mV), supply current (≤50 μA), and CMRR (≥68 dB) - are guaranteed across this full industrial temperature range, making it suitable for under-hood automotive modules and outdoor industrial sensors.
Does AD8613AUJZ-R2 support rail-to-rail input and output simultaneously?
Yes, AD8613AUJZ-R2 supports true rail-to-rail input (common-mode range from V− to V+) and rail-to-rail output (swing within 30 mV of each rail at 1 mA load). This dual rail-to-rail capability allows it to interface directly with CMOS ADCs and DACs powered from the same 1.8 V or 3.3 V supply as the AD8613AUJZ-R2 itself.
What is the maximum capacitive load AD8613AUJZ-R2 can drive stably?
AD8613AUJZ-R2 is unity-gain stable and characterized with up to 20 pF capacitive load in the datasheet. For loads exceeding 20 pF, external isolation resistance (e.g., 10–100 Ω in series with the output) is recommended to maintain ≥70° phase margin and prevent peaking or oscillation in filter or cable-driving applications.
Is AD8613AUJZ-R2 pin-compatible with other members of the AD861x family?
No - AD8613AUJZ-R2 (5-pin TSOT-23) is not pin-compatible with AD8617 (8-pin) or AD8619 (14-pin). However, its pinout matches AD8613AKSZ-R2 (5-pin SC70) electrically: both share identical pin 1 (OUT), pin 2 (−IN), pin 3 (+IN), pin 4 (V−), and pin 5 (V+), though mechanical footprint differs.
What PCB layout considerations are critical for AD8613AUJZ-R2's low-noise performance?
To preserve AD8613AUJZ-R2's 22 nV/√Hz noise performance, use short, guarded traces for +IN/−IN; place a 0.1 μF ceramic decoupling capacitor between V+ and V− pins within 2 mm; avoid routing noisy digital signals beneath the device; and connect the TSOT-23 exposed pad (if present per UJ-5 variant) directly to the V− plane for lowest impedance return path.
AD8613AUJZ-R2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- TSOT-23-5
AD8613AUJZ-R2 FAQ
1.How can I place an order for AD8613AUJZ-R2 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8613AUJZ-R2 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 AD8613AUJZ-R2 reliable?
The price and inventory of AD8613AUJZ-R2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8613AUJZ-R2 is usually 5 days.
3.What payment methods are accepted for AD8613AUJZ-R2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8613AUJZ-R2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8613AUJZ-R2?
AD8613AUJZ-R2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8613AUJZ-R2 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 AD8613AUJZ-R2?
For technical support, including AD8613AUJZ-R2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8613AUJZ-R2 requirements.
6.How does Aetrix verify that AD8613AUJZ-R2 is sourced from the original manufacturer or authorized distributors?
All AD8613AUJZ-R2 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 AD8613AUJZ-R2 meets industry standards.
7.What is the process for return or replacement of AD8613AUJZ-R2?
All AD8613AUJZ-R2 units undergo pre-shipment inspection (PSI). If there is an issue with AD8613AUJZ-R2, 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 AD8613AUJZ-R2 part is unused and in its original packaging.
Return procedure for AD8613AUJZ-R2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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