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OPA333AQDBVRQ1

Automotive, micropower, 1.8-V, 17-µA zero-drift CMOS precision operational amplifier

Manufacturer:

TI
Mfr.Part #:

OPA333AQDBVRQ1
Datasheet:

OPA333AQDBVRQ1 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):

0.01
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OPA333AQDBVRQ1 General Description

The OPA333-Q1 CMOS operational amplifier uses a proprietary autocalibration technique to simultaneously provide verylow offset voltage (10 µV maximum) and near-zero drift over time and temperature. This miniature, high-precision, low-quiescent-current amplifier offers high-impedance inputs that have a common-mode range 100 mV beyond the rails, and rail-to-rail output that swings within 50 mV of the rails. The device can use single or dual supplies as low as 1.8 V (±0.9 V) and up to 5.5 V (±2.75 V), and is optimized for low-voltage single-supply operation.

The OPA333-Q1 device offers excellent common-mode rejection ratio (CMRR) without the crossover associated with traditional complementary input stages. This design results in superior performance for driving analog-to-digital converters (ADCs) without degradation of differential linearity.

Key Features

AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, T_A
Low offset voltage: 10 µV (maximum)
0.01-Hz to 10-Hz noise: 1.1 µV_PP
Quiescent current: 17 µA
Single-supply operation
Supply voltage: 1.8 V to 5.5 V
Rail-to-rail input and output
Microsize 5-pin SOT-23 (DBV) 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)	0.01
GBW (typ) (MHz)	0.35	Features	EMI Hardened, Zero Drift
Slew rate (typ) (V/µs)	0.16	Rail-to-rail	In, Out
Offset drift (typ) (µV/°C)	0.02	Iq per channel (typ) (mA)	0.017
Vn at 1 kHz (typ) (nV√Hz)	55	CMRR (typ) (dB)	130
Rating	Automotive	Operating temperature range (°C)	-40 to 125
TI functional safety category	Functional Safety-Capable	Input bias current (max) (pA)	200
Iout (typ) (A)	0.005	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)	0.03	Output swing headroom (to positive supply) (typ) (V)	-0.03