Home Amplifiers Operational amplifiers (op amps) Precision op amps (Vos<1mV)
Home
Amplifiers
Operational amplifiers (op amps)
Precision op amps (Vos<1mV)

OPA2320-Q1

ACTIVE

Automotive, dual, precision, zero-crossover, 20-MHz, 0.9-pA Ib, RRIO, CMOS op amp

Order now
Data sheet

OPA2320-Q1

ACTIVE
Data sheet Order now

Product details

Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.8 Vos (offset voltage at 25°C) (max) (mV) 0.15 Offset drift (typ) (µV/°C) 1.5 Input bias current (max) (pA) 0.9 GBW (typ) (MHz) 20 Features EMI Hardened, Zero Crossover Slew rate (typ) (V/µs) 10 Rail-to-rail In, Out Iq per channel (typ) (mA) 1.5 Vn at 1 kHz (typ) (nV√Hz) 8.5 CMRR (typ) (dB) 114 Rating Automotive Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.065 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) 0.1 Output swing headroom (to negative supply) (typ) (V) 0.01 Output swing headroom (to positive supply) (typ) (V) -0.01 THD + N at 1 kHz (typ) (%) 0.0005
Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.8 Vos (offset voltage at 25°C) (max) (mV) 0.15 Offset drift (typ) (µV/°C) 1.5 Input bias current (max) (pA) 0.9 GBW (typ) (MHz) 20 Features EMI Hardened, Zero Crossover Slew rate (typ) (V/µs) 10 Rail-to-rail In, Out Iq per channel (typ) (mA) 1.5 Vn at 1 kHz (typ) (nV√Hz) 8.5 CMRR (typ) (dB) 114 Rating Automotive Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.065 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) 0.1 Output swing headroom (to negative supply) (typ) (V) 0.01 Output swing headroom (to positive supply) (typ) (V) -0.01 THD + N at 1 kHz (typ) (%) 0.0005
VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm)
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified with the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Precision with Zero-Crossover Distortion:
    • Low Offset Voltage: 150 µV (max)
    • High CMRR: 114 dB
    • Rail-to-Rail I/O
  • Low Input Bias Current: 0.9 pA (max)
  • Low Noise: 7 nV/√Hz at 10kHz
  • Wide Bandwidth: 20 MHz
  • Slew Rate: 10 V/µs
  • Quiescent Current: 1.45 mA/ch
  • Single-Supply Voltage Range: 1.8 to 5.5 V
  • Unity-Gain Stable
  • Small VSSOP Package
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified with the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Precision with Zero-Crossover Distortion:
    • Low Offset Voltage: 150 µV (max)
    • High CMRR: 114 dB
    • Rail-to-Rail I/O
  • Low Input Bias Current: 0.9 pA (max)
  • Low Noise: 7 nV/√Hz at 10kHz
  • Wide Bandwidth: 20 MHz
  • Slew Rate: 10 V/µs
  • Quiescent Current: 1.45 mA/ch
  • Single-Supply Voltage Range: 1.8 to 5.5 V
  • Unity-Gain Stable
  • Small VSSOP Package

The OPA320-Q1 and OPA2320-Q1 (OPAx320-Q1) devices are a new generation of precision low-voltage CMOS operational amplifiers (op amps) optimized for very low noise and wide bandwidth. These devices operate on a low quiescent current of only 1.45 mA.

The OPAx320-Q1 are an excellent choice for low-power, single-supply applications. Low-noise (7 nV/√Hz) and high-speed operation also makes these devices an excellent choice for driving sampling analog-to-digital converters (ADCs). Other applications include signal conditioning and sensor amplification.

The OPAx320-Q1 feature a linear input stage with zero-crossover distortion that delivers excellent common-mode rejection ratio (CMRR) of 114 dB (typical) over the full input range. The input common-mode range extends 100 mV beyond the negative and positive supply rails. The output voltage typically swings within 10 mV of the rails.

In addition, the OPAx320-Q1 have a wide supply voltage range from 1.8 V to 5.5 V, with excellent PSRR (106 dB) over the entire supply range. These features make the OPAx320-Q1 suitable for precision, low-power applications that run directly from batteries without regulation.

The OPAx320-Q1 device is available in an 8-pin VSSOP (DGK) package.

The OPA320-Q1 and OPA2320-Q1 (OPAx320-Q1) devices are a new generation of precision low-voltage CMOS operational amplifiers (op amps) optimized for very low noise and wide bandwidth. These devices operate on a low quiescent current of only 1.45 mA.

The OPAx320-Q1 are an excellent choice for low-power, single-supply applications. Low-noise (7 nV/√Hz) and high-speed operation also makes these devices an excellent choice for driving sampling analog-to-digital converters (ADCs). Other applications include signal conditioning and sensor amplification.

The OPAx320-Q1 feature a linear input stage with zero-crossover distortion that delivers excellent common-mode rejection ratio (CMRR) of 114 dB (typical) over the full input range. The input common-mode range extends 100 mV beyond the negative and positive supply rails. The output voltage typically swings within 10 mV of the rails.

In addition, the OPAx320-Q1 have a wide supply voltage range from 1.8 V to 5.5 V, with excellent PSRR (106 dB) over the entire supply range. These features make the OPAx320-Q1 suitable for precision, low-power applications that run directly from batteries without regulation.

The OPAx320-Q1 device is available in an 8-pin VSSOP (DGK) package.
filter Find other Precision op amps (Vos<1mV)
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device.
OPA2325 ACTIVE Dual precision, wide bandwidth, low noise, low power ADC driving op amp with RRIO and zero-crossover Industrial alternative that offers lower power CMOS rail-to-rail input and output

Technical documentation

No results found. Please clear your search and try again.
View all 6
Top documentation Type Title Format options Date
* Data sheet OPAx320-Q1 Precision, 20-MHz, 0.9-pA, Low-Noise, RRIO, CMOS Operational Amplifier datasheet (Rev. B) PDF | HTML Dec 20, 2018
E-book An Engineer’s Guide to Designing with Precision Amplifiers Apr 29, 2021
Application note Cascading Precision Op Amp Stages for Optimal AC and DC Performance PDF | HTML Aug 17, 2020
E-book The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML Mar 28, 2017
Technical article How does precision lead to automotive safety? PDF | HTML Sep 30, 2016
E-book Analog Engineer’s Pocket Reference Guide Fifth Edition (Rev. D) PDF | HTML Sep 30, 2014

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

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
Supported products & hardware
Simulation model

OPAx320 PSpice Model (Rev. G)

SBOM437G.ZIP (30 KB) - PSpice model
Supported products & hardware
Simulation model

OPAx320 TINA-TI Reference Design (Rev. F)

SBOM439F (307 KB) - TINA-TI reference design
Supported products & hardware
Simulation model

OPAx320 TINA-TI Spice Model (Rev. F)

SBOM438F.ZIP (10 KB) - TINA-TI Spice model
Supported products & hardware
Simulation model

OPAx320-Q1 PSpice Model

SBOMBW3.ZIP (28 KB) - PSpice model
Supported products & hardware
Simulation model

OPAx320-Q1 TINA-TI Reference Design

SBOMBW2 (307 KB) - TINA-TI reference design
Supported products & hardware
Simulation model

OPAx320-Q1 TINA-TI Spice Model

SBOMBW4.ZIP (10 KB) - TINA-TI Spice model
Supported products & hardware
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 (...)

Supported products & hardware
Calculation tool

OPAMP-NOISECALC — Noise Calculator

This folder contains three tools to help in understandning and managing noise in cicuits. The included tools are:

  • A noise generator tool - This is a Lab View 4-Run Time executable that generates Gaussian white noise, uniform white noise, 1/f noise, short noise, and 60Hz line noise. Temporal data, (...)
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
VSSOP (DGK) 8 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos