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OPA320AQDBVRQ1

Automotive qualified, precision, zero-crossover, 20-MHz, 0.9-pA Ib, RRIO, CMOS operational amplifier

Manufacturer:

TI
Mfr.Part #:

OPA320AQDBVRQ1
Datasheet:

OPA320AQDBVRQ1 Datasheet (PDF)
Number of channels:

1
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
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OPA320AQDBVRQ1 General Description

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.

Key Features

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

Specifications

Number of channels	1	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
GBW (typ) (MHz)	20	Features	EMI Hardened, Shutdown, Zero Crossover
Slew rate (typ) (V/µs)	10	Rail-to-rail	In, Out
Offset drift (typ) (µV/°C)	1.5	Iq per channel (typ) (mA)	1.45
Vn at 1 kHz (typ) (nV√Hz)	8.5	CMRR (typ) (dB)	114
Rating	Automotive	Operating temperature range (°C)	-40 to 125
TI functional safety category	Functional Safety-Capable	Input bias current (max) (pA)	0.9
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