Analog Devices

AD8513ARZ - Quad Precision Low Noise JFET Op Amp | Analog Devices

Name: AD8513ARZ
Brand: Analog Devices
Price: 2.19 USD
Availability: InStock

MPN: AD8513ARZ ✓ Active

In Stock Ships in 1-3 business days

400 µV (max) Vdss 1 pA Id 14-SOIC Package

From $2.19 USD / Unit

MOQ: 1 |

Price updated: 2026-08-21

Volume Pricing

Qty	Unit Price	Extended
1	$3.42	$3.42
10	$3.08	$30.80
100	$2.74	$274.00
500	$2.47	$1,235.00
1,000	$2.19	$2,190.00

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

Quantity

Drop-in alternatives for AD8513ARZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Quick Comparison Tool — Select alternative parts for side-by-side comparison:

AD8513ARZ-REEL7

✅ Drop-In

📦 14-SOIC

Same die, tape and reel packaging variant

📋 Reference alternative (not in catalog)

ℹ️ 4 cross-package part(s) hidden — different package requires PCB rework and is not a true drop-in replacement. Contact us if you need cross-package suggestions.

AD8513ARZ Maximum Ratings & Electrical Characteristics

Amplifier Type	J-FET
Number of Circuits	4
Output Type	Rail-to-Rail
Slew Rate	20 V/µs
Gain Bandwidth Product	8 MHz
Current - Input Bias	1 pA
Voltage - Input Offset	400 µV (max)
Current - Supply	2.2 mA (per channel)
Current - Output / Channel	70 mA
Voltage - Supply Span (Min)	10 V
Voltage - Supply Span (Max)	30 V
Operating Temperature	-40°C to +125°C
Package / Case	14-SOIC
Mounting Type	Surface Mount
RoHS Status	Compliant

AD8513ARZ Pin Configuration

Pin 1	OUT A — Output of amplifier A
Pin 2	-IN A — Inverting input of amplifier A
Pin 3	+IN A — Non-inverting input of amplifier A
Pin 4	V+ — Positive supply
Pin 5	+IN B — Non-inverting input of amplifier B
Pin 6	-IN B — Inverting input of amplifier B
Pin 7	OUT B — Output of amplifier B
Pin 8	OUT C — Output of amplifier C
Pin 9	-IN C — Inverting input of amplifier C
Pin 10	+IN C — Non-inverting input of amplifier C
Pin 11	V- — Negative supply
Pin 12	+IN D — Non-inverting input of amplifier D
Pin 13	-IN D — Inverting input of amplifier D
Pin 14	OUT D — Output of amplifier D

Safe Operating Area (SOA) & Thermal Characteristics

No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.

Typical Applications

AD8513ARZ is suitable for 6 applications: Precision Data Acquisition, Medical Instrumentation, Audio Preamplifiers, Active Filters, Photodiode Amplifiers, Industrial Process Control.

🖥️

Precision Data Acquisition

The AD8513ARZ's low offset voltage (400 µV max) and low noise (8 nV/√Hz) make it ideal for precision data acquisition systems. Its quad configuration allows simultaneous sampling of multiple channels, while the fast settling time (500 ns) ensures accurate conversion in high-speed ADCs. The low input bias current (1 pA) minimizes errors when interfacing with high-impedance sensors, ensuring measurement accuracy.

Recommended

💊

Medical Instrumentation

In medical instrumentation, the AD8513ARZ provides the low noise and low bias current required for accurate biopotential measurements, such as ECG and EEG. Its wide supply range allows operation from battery supplies, and the quad configuration supports multi-channel monitoring. The device's low offset voltage ensures minimal baseline drift, critical for long-term patient monitoring.

Recommended

AD8232 (ECG front-end) ADuCM360 (Precision analog microcontroller)

🎧

Audio Preamplifiers

The AD8513ARZ is well-suited for audio preamplifiers due to its low noise (8 nV/√Hz) and low distortion. Its wide bandwidth (8 MHz) and high slew rate (20 V/µs) ensure transparent reproduction of audio signals. The quad configuration allows for stereo preamplifiers with additional filtering stages, while the rail-to-rail output maximizes dynamic range.

Recommended

ADAU1701 (Audio DSP for processing) PCM1794A (High-performance audio DAC)

🔧

Active Filters

The AD8513ARZ's high bandwidth and fast slew rate make it ideal for active filter designs, such as Butterworth and Chebyshev filters. Its low offset voltage and low noise ensure accurate signal conditioning in sensor interfaces. The quad configuration allows implementation of multiple filter stages in a single package, reducing board space and component count.

Recommended

AD9833BRUZ · Analog Devices AD7606BSTZ · Analog Devices

🔧

Photodiode Amplifiers

The AD8513ARZ's ultra-low input bias current (1 pA) is essential for photodiode amplifiers, where bias current errors can cause significant output offset. Its low noise and wide bandwidth enable accurate detection of small optical signals. The quad configuration allows for multi-channel light sensing, such as in color sensors or array detectors.

Recommended

AD7172-2BRUZ (ADC for photodiode signal digitization) ADuCM360 (Precision analog microcontroller)

🏭

Industrial Process Control

In industrial process control, the AD8513ARZ provides reliable signal conditioning for sensors like thermocouples and RTDs. Its wide supply range and industrial temperature rating (-40°C to +125°C) ensure operation in harsh environments. The low offset voltage and low drift maintain accuracy over temperature, while the quad configuration supports multiple control loops.

Recommended

AD5422ACPZ · Analog Devices AD7606BSTZ · Analog Devices

Recommended Products Summary

AD7606BSTZ Analog Devices Used in: Precision Data Acquisition, Active Filters, Industrial Process Control AD7176-2BRUZ Analog Devices Used in: Precision Data Acquisition AD8232 ECG front-end Used in: Medical Instrumentation ADuCM360 Precision analog microcontroller Used in: Medical Instrumentation, Photodiode Amplifiers ADAU1701 Audio DSP for processing Used in: Audio Preamplifiers PCM1794A High-performance audio DAC Used in: Audio Preamplifiers AD9833BRUZ Analog Devices Used in: Active Filters AD7172-2BRUZ ADC for photodiode signal digitization Used in: Photodiode Amplifiers AD5422ACPZ Analog Devices Used in: Industrial Process Control

What is the supply voltage range of AD8513ARZ?

The AD8513ARZ operates from a supply voltage range of ±5 V to ±15 V, or a single supply from 10 V to 30 V. According to the Analog Devices datasheet, the device is fully specified over this range, ensuring consistent performance in both dual and single supply applications.

What is the input bias current of AD8513ARZ?

The AD8513ARZ has an input bias current of 1 pA typical, thanks to its JFET input stage. This extremely low bias current makes it ideal for high-impedance sensor interfaces, such as photodiode amplifiers and pH probes, where bias current errors can significantly affect accuracy.

What is the offset voltage of AD8513ARZ?

The AD8513ARZ has a maximum input offset voltage of 400 µV. This low offset voltage, combined with low drift, ensures high DC accuracy in precision applications like data acquisition and instrumentation, minimizing output errors without requiring external trimming.

What is the bandwidth of AD8513ARZ?

The AD8513ARZ has a gain bandwidth product of 8 MHz and a slew rate of 20 V/µs. This wide bandwidth allows the amplifier to handle fast signals, making it suitable for active filters, audio preamplifiers, and other applications requiring high-speed signal processing.

Is AD8513ARZ suitable for audio applications?

Yes, the AD8513ARZ is suitable for audio applications due to its low noise (8 nV/√Hz) and low distortion. Its wide bandwidth and high slew rate ensure accurate reproduction of audio signals, making it a good choice for preamplifiers and active crossover networks.

What is the difference between AD8513 and AD8512?

The AD8513 is a quad amplifier, while the AD8512 is a dual amplifier. Both share the same precision JFET input stage, low offset voltage, and low noise specifications. The AD8513 offers four amplifiers in a single 14-SOIC package, saving board space in multi-channel designs.

Can AD8513ARZ be used as a drop-in replacement for other quad op amps?

The AD8513ARZ can replace many quad JFET op amps in 14-SOIC packages, such as the TL074 and LF347, provided the pinout matches. However, always verify the pinout and supply voltage requirements, as some devices may have different pin configurations or voltage limits.

What is the settling time of AD8513ARZ?

The AD8513ARZ has a fast settling time of 500 ns to 0.1%. This makes it suitable for sample-and-hold circuits and high-speed data acquisition systems where rapid settling is critical for accurate signal capture.

Where can I buy AD8513ARZ?

AD8513ARZ is available from major distributors such as DigiKey, Mouser, and Octopart. As of 2026-08-21, pricing starts at $3.42 for single units, with volume discounts available. Check current stock and lead times on distributor websites.

What is the price of AD8513ARZ?

As of 2026-08-21, the AD8513ARZ is priced at $3.42 for 1 unit, $3.08 for 10 units, $2.74 for 100 units, $2.47 for 500 units, and $2.19 for 1000 units. Prices may vary by distributor and quantity.

What is the lead time for AD8513ARZ?

The lead time for AD8513ARZ varies by distributor and stock availability. As of 2026-08-21, DigiKey typically ships within 24 hours if in stock, while Mouser may have similar lead times. For large quantities, lead times can extend to several weeks.

Is AD8513ARZ in stock?

As of 2026-08-21, AD8513ARZ is in stock at major distributors like DigiKey and Mouser. However, stock levels can change rapidly, so it is recommended to check the distributor websites for real-time availability.

What is the best drop-in replacement for AD8513ARZ?

The best drop-in replacement for AD8513ARZ is the AD8513ARZ-REEL7, which is the same device in tape and reel packaging. For cross-brand alternatives, the OPA4227 from Texas Instruments is a pin-compatible quad precision op amp with similar specifications, but verify pinout and performance before substitution.

Can OPA4227 replace AD8513ARZ?

Yes, the OPA4227 from Texas Instruments can replace AD8513ARZ in many applications, as it is a quad precision op amp in a 14-SOIC package with similar pinout. However, the OPA4227 has a higher input bias current (2.5 nA) and different noise characteristics, so verify compatibility for your specific application.

Where can I download the AD8513ARZ datasheet PDF?

The AD8513ARZ datasheet PDF can be downloaded from the Analog Devices website at https://www.analog.com/media/en/technical-documentation/data-sheets/AD8510_8512_8513.pdf. It is also available on distributor sites like DigiKey and Mouser.

Engineering reference data for AD8513ARZ — comparison, design guidance, and compliance information.

Selection Guide

Choose the AD8513ARZ when you need a quad precision JFET op amp with ultra-low input bias current (1 pA) and low noise (8 nV/√Hz) for high-impedance sensor interfaces, precision data acquisition, or medical instrumentation. If you require a dual version, consider the AD8512ARZ. For applications where lower cost is more important than precision, the TL074CN or LF347N may suffice, but they have higher offset voltage and noise. The OPA4227 from Texas Instruments offers lower offset voltage (75 µV) but higher bias current, making it less suitable for high-impedance sources. Always verify pinout and package compatibility before substitution.

Comparison with Alternatives

Parameter	This Product	AD8513ARZ-REEL7	AD8512ARZ	OPA4227PA	TL074CN	LF347N
Package	14-SOIC	14-SOIC	8-SOIC	14-DIP	14-DIP	14-DIP
Brand	Analog Devices	Analog Devices	Analog Devices	Texas Instruments	Texas Instruments	Texas Instruments
Number of Circuits	4	4	2	4	4	4
Input Bias Current	1 pA	1 pA	1 pA	2.5 nA	65 pA	50 pA
Offset Voltage (max)	400 µV	400 µV	400 µV	75 µV	3 mV	3 mV
Gain Bandwidth Product	8 MHz	8 MHz	8 MHz	8 MHz	3 MHz	4 MHz
Slew Rate	20 V/µs	20 V/µs	20 V/µs	2.3 V/µs	13 V/µs	13 V/µs
Supply Voltage Range	±5V to ±15V	±5V to ±15V	±5V to ±15V	±2.5V to ±18V	±5V to ±15V	±5V to ±15V

Key Differentiators

Ultra-low input bias current of 1 pA (vs OPA4227PA)
Higher slew rate of 20 V/µs (vs OPA4227PA)
Lower noise than TL074 (vs TL074CN)

Design Notes

Use 0.1 µF ceramic capacitors close to each supply pin (V+ and V-) to decouple high-frequency noise. Additionally, a 10 µF tantalum capacitor on each supply rail can help stabilize the supply under transient loads. Proper decoupling is critical for maintaining the low noise performance of the AD8513ARZ.

For high-impedance inputs, use a guard ring around the input pins to minimize leakage currents. Keep traces short and shield them from noise sources. A ground plane under the device can help reduce parasitic capacitance and improve stability.

Avoid exceeding the absolute maximum supply voltage of ±18 V. Also, ensure the output does not short-circuit to ground for extended periods, as this can cause thermal damage. For capacitive loads, add a series resistor to maintain stability.