OPA1641-Q1

ACTIVE

Single Automotive Sound-Plus High-Performance, JFET-Input Audio Op Amps

Product details

Number of channels 1 GBW (typ) (MHz) 11 Slew rate (typ) (V/µs) 20 Rail-to-rail Out Vos (offset voltage at 25°C) (max) (mV) 3.5 Iq per channel (typ) (mA) 1.8 Vn at 1 kHz (typ) (nV√Hz) 5.1 Features Burr-Brown™ Audio, Premium Sound THD + N at 1 kHz (typ) (%) 0.00005 Rating Automotive Operating temperature range (°C) -40 to 125 Architecture FET CMRR (typ) (dB) 126 Input bias current (max) (pA) 20
Number of channels 1 GBW (typ) (MHz) 11 Slew rate (typ) (V/µs) 20 Rail-to-rail Out Vos (offset voltage at 25°C) (max) (mV) 3.5 Iq per channel (typ) (mA) 1.8 Vn at 1 kHz (typ) (nV√Hz) 5.1 Features Burr-Brown™ Audio, Premium Sound THD + N at 1 kHz (typ) (%) 0.00005 Rating Automotive Operating temperature range (°C) -40 to 125 Architecture FET CMRR (typ) (dB) 126 Input bias current (max) (pA) 20
VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C6
  • Low Noise: 5.1 nV/√Hz at 1 kHz
  • Ultra-low Distortion: 0.00005% at 1 kHz
  • High Slew Rate: 20 V/µs
  • Unity Gain Stable
  • No Phase Reversal
  • Low Quiescent Current:
    1.8 mA per Channel
  • Rail-to-Rail Output
  • Wide Supply Range: ±2.25 V to ±18 V
  • Single, Dual, and Quad Versions Available
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C6
  • Low Noise: 5.1 nV/√Hz at 1 kHz
  • Ultra-low Distortion: 0.00005% at 1 kHz
  • High Slew Rate: 20 V/µs
  • Unity Gain Stable
  • No Phase Reversal
  • Low Quiescent Current:
    1.8 mA per Channel
  • Rail-to-Rail Output
  • Wide Supply Range: ±2.25 V to ±18 V
  • Single, Dual, and Quad Versions Available

The OPA1641-Q1 (single) and OPA1642-Q1 (dual) series are JFET-input, ultra-low distortion, low-noise operational amplifiers (op amps) fully specified for audio applications.

The rail-to-rail output swing allows increased headroom, making these devices ideal for use in any audio circuit. Features include 5.1-nV/√Hz noise, low total harmonic distortion + noise (THD+N) (0.00005%), a low input bias current of 2 pA, and low quiescent current of 1.8 mA per channel.

These devices operate over a very wide supply voltage range of ±2.25 V to ±18 V. The OPA164x-Q1 series of operational amplifiers are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions.

The dual version features completely independent circuitry for lowest crosstalk and freedom from interactions between channels, even when overdriven or overloaded.

The OPA1641-Q1 (single) and OPA1642-Q1 (dual) series are JFET-input, ultra-low distortion, low-noise operational amplifiers (op amps) fully specified for audio applications.

The rail-to-rail output swing allows increased headroom, making these devices ideal for use in any audio circuit. Features include 5.1-nV/√Hz noise, low total harmonic distortion + noise (THD+N) (0.00005%), a low input bias current of 2 pA, and low quiescent current of 1.8 mA per channel.

These devices operate over a very wide supply voltage range of ±2.25 V to ±18 V. The OPA164x-Q1 series of operational amplifiers are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions.

The dual version features completely independent circuitry for lowest crosstalk and freedom from interactions between channels, even when overdriven or overloaded.

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Technical documentation

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* Data sheet OPA164x-Q1 SoundPlus™ JFET-Input, Automotive-Grade, Audio Operational Amplifiers datasheet (Rev. A) PDF | HTML 17 Nov 2017
Application note Compensate Transimpedance Amplifiers Intuitively (Rev. A) 30 Mar 2005

Design & development

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Evaluation board

AMP-PDK-EVM — Amplifier performance development kit evaluation module

The amplifier performance development kit (PDK) is an evaluation module (EVM) kit to test common operational amplifier (op amp) parameters and is compatible with most op amps and comparators. The EVM kit offers a main board with several socketed daughtercard options to fit package needs, allowing (...)

User guide: PDF | HTML
Simulation model

OPA164x-Q1 PSpice Model (Rev. A)

SBOMC36A.ZIP (31 KB) - PSpice Model
Simulation model

OPA164x-Q1 TINA-TI Reference Design

SBOMC35.TSC (289 KB) - TINA-TI Reference Design
Simulation model

OPA164x-Q1 TINA-TI Spice Model

SBOMC34.ZIP (11 KB) - TINA-TI Spice Model
Calculation tool

ANALOG-ENGINEER-CALC PC software analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

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PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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