OPA320 Datasheet, PDF (1/31 Pages) Texas Instruments – Precision, 20MHz, 0.9pA, Low-Noise, RRIO, CMOS Operational Amplifier with Shutdown

OPA320
OPA2320
OPA2320
OPA2320S
OPA320, OPA2320
OPA320S, OPA2320S
www.ti.com
SBOS513D – AUGUST 2010 – REVISED NOVEMBER 2011
Precision, 20MHz, 0.9pA, Low-Noise, RRIO,
CMOS Operational Amplifier with Shutdown
Check for Samples: OPA320, OPA2320, OPA320S, OPA2320S
FEATURES
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•23 Precision with Zero-Crossover Distortion:
– Low Offset Voltage: 150μV (max)
– High CMRR: 114dB
– Rail-to-Rail I/O
• Low Input Bias Current: 0.9pA (max)
• Low Noise: 7nV/√Hz at 10kHz
• Wide Bandwidth: 20MHz
• Slew Rate: 10V/μs
• Quiescent Current: 1.45mA/ch
• Single-Supply Voltage Range: 1.8V to 5.5V
• OPA320S, OPA2320S:
– I_Q in Shutdown Mode: 0.1μA
• Unity-Gain Stable
• Small Packages:
– SOT23, MSOP, DFN
APPLICATIONS
• High-Z Sensor Signal Conditioning
• Transimpedance Amplifiers
• Test and Measurement Equipment
• Programmable Logic Controllers (PLCs)
• Motor Control Loops
• Communications
• Input/Output ADC/DAC Buffers
• Active Filters
DESCRIPTION
The OPA320 (single) and OPA2320 (dual) are a new
generation of precision, low-voltage CMOS
operational amplifiers optimized for very low noise
and wide bandwidth while operating on a low
quiescent current of only 1.45mA.
The OPA320 series is ideal for low-power,
single-supply applications. Low-noise (7nV/√Hz) and
high-speed operation also make them well-suited for
driving sampling analog-to-digital converters (ADCs).
Other applications include signal conditioning and
sensor amplification.
The OPA320 features a linear input stage with
zero-crossover distortion that delivers excellent
common-mode rejection ratio (CMRR) of typically
114dB over the full input range. The input
common-mode range extends 100mV beyond the
negative and positive supply rails. The output voltage
typically swings within 10mV of the rails.
In addition, the OPAx320 have a wide supply voltage
range from 1.8V to 5.5V with excellent PSRR (106dB)
over the entire supply range, making them suitable
for precision, low-power applications that run directly
from batteries without regulation.
The OPA320 (single version) is available in a
SOT23-5 package; the OPA320S shut-down single
version is available in an SOT23-6 package. The dual
OPA2320 is offered in SO-8, MSOP-8, and DFN-8
packages, and the OPA2320S (dual with shut-down)
in an MSOP-10 package.
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Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
FilterPro is a trademark of Texas Instruments Incorporated.
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UNLESS OTHERWISE NOTED this document contains
PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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