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AD8513ARUZ

Quad JFET Op Amp, 8.5MHz, 20V/us, 1pA IB, +/-1mV Vos, TSSOP-14

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Manufacturer Part：

AD8513ARUZ

Package：

TSSOP-14 (5.0 x 4.4 x 1.0 mm)

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Description

Product Overview

The AD8513ARUZ from Analog Devices is a quad 8.5 MHz, 20 V/us precision JFET input operational amplifier with 1 pA input bias current and +/-1 mV offset voltage in a TSSOP-14 package.

Key Specifications

Type Quad Precision JFET Input Op Amp
Channels 4
Gain Bandwidth Product 8.5 MHz
Slew Rate 20 V/us
Input Offset Voltage +/-1 mV (max, B grade)
Input Bias Current 1 pA (typical)
Input Offset Current 0.5 pA (typical)
Supply Voltage +/-5 V to +/-18 V
Supply Current per Amplifier 2.2 mA (typical)
CMRR 95 dB (min)
Package TSSOP-14
Operating Temperature -40C to +125C

Features

  • Ultra-low 1 pA input bias current
  • +/-1 mV max offset voltage (B grade)
  • 8.5 MHz gain bandwidth product
  • 20 V/us slew rate
  • Single-supply or dual-supply operation
  • No phase reversal on overdrive
  • Unity-gain stable

Applications

  • Precision multi-channel signal conditioning
  • Photodiode and piezoelectric transducer amplifiers
  • Active filters for sensor interfaces
  • Battery-powered instrumentation

The AD8513ARUZ from Analog Devices is a quad precision JFET input operational amplifier offering 8.5 MHz gain bandwidth product and 20 V/us slew rate with ultra-low 1 pA input bias current. The +/-1 mV max offset voltage (B grade) eliminates the need for external trimming in most applications. The JFET input stage provides virtually zero input current, making it ideal for high-impedance sensor interfaces such as photodiodes, pH probes, and piezoelectric transducers. The 95 dB minimum CMRR ensures accurate differential signal processing. The device operates from +/-5 V to +/-18 V dual supplies or 10 V to 36 V single supply. Unity-gain stability and no phase reversal on overdrive simplify circuit design.

The AD8513ARUZ uses a BiFET process combining ion-implanted JFET input transistors with bipolar gain and output stages. The JFET input pair provides the ultra-low 1 pA input bias current, while the bipolar second and output stages deliver the 20 V/us slew rate and 8.5 MHz bandwidth. The input offset voltage is laser-trimmed at wafer level to +/-1 mV maximum. Each of the four amplifier channels is independent with dedicated input and output pins, sharing only the supply rails. The output stage uses a class AB push-pull configuration capable of driving 1 kOhm loads with rail-to-rail output swing within 1.5 V of the supplies. The internal compensation ensures stability in unity-gain configurations while the 8.5 MHz bandwidth supports active filter applications up to several hundred kHz.

Pin Name Type Function
1 1OUT Output Channel 1 output
2 1IN- Input Channel 1 inverting input
3 1IN+ Input Channel 1 non-inverting input
4 VS+ Power Positive supply
5 2IN+ Input Channel 2 non-inverting input
6 2IN- Input Channel 2 inverting input
7 2OUT Output Channel 2 output
8 3OUT Output Channel 3 output
9 3IN- Input Channel 3 inverting input
10 3IN+ Input Channel 3 non-inverting input
11 VS- Power Negative supply
12 4IN+ Input Channel 4 non-inverting input
13 4IN- Input Channel 4 inverting input
14 4OUT Output Channel 4 output
  • 4-channel pH electrode buffer amplifier with pA-level input current
  • Quad photodiode transimpedance amplifier array for optical receivers
  • Multi-channel active filter bank for seismic sensor conditioning
  • 4-channel precision voltage follower for high-impedance multiplexer
Manufacturer Part Number Package Notes
ADI AD8512ARZ SOIC-8 Dual version of AD8513
ADI AD8510ARZ SOIC-8 Single version of AD8513
TI OPA4141AIDR SOIC-14 Quad JFET, 11MHz, similar
TI TL074ACDR SOIC-14 Quad JFET, 3MHz, lower cost
ADI ADA4610-4ARUZ TSSOP-14 Quad JFET, RR output, upgrade
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