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OPA2388QDGKRQ1

Zero-Drift Amplifier 2 Circuit Rail-to-Rail 8-VSSOP

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

OPA2388QDGKRQ1
Datasheet:

OPA2388QDGKRQ1 Datasheet (PDF)
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):

2.5
Vos (offset voltage at 25°C) (max) (mV):

0.005
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OPA2388QDGKRQ1 General Description

The OPA388-Q1 and OPA2388-Q1 ( OPAx388-Q1) are automotive, low-noise, fast-settling, zero-drift, precision operational amplifiers that provide rail-to-rail input and output operation. Excellent ac performance, combined with only 0.25 µV of offset and 0.005 µV/°C of drift over temperature, make the OPAx388-Q1 a great choice for driving high-resolution, analog-to-digital converters (ADCs) with high accuracy. Zero-crossover technology minimizes any offset change over the common-mode range. The combination of low drift and very low 1/f noise allow the OPAx388-Q1 to monitor and detect faulty conditions without compromising signal integrity.

These devices are specified over the industrial temperature range of –40°C to +125°C.

Key Features

AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, T_A
Functional-Safety Capable
- Documentation available to aid functional safety system design (OPA388-Q1)
- Documentation available to aid functional safety system design (OPA2388-Q1: VSSOP)
Zero drift: ±0.005 µV/°C
Zero crossover: 140-dB CMRR true RRIO
Low noise: 7.0 nV√Hz at 1 kHz
No 1/f noise: 140 nV_PP (0.1 Hz to 10 Hz)
Fast settling: 2 µs (1 V to 0.01%)
Gain bandwidth: 10 MHz
Single supply: 2.5 V to 5.5 V
Dual supply: ±1.25 V to ±2.75 V
True rail-to-rail input
EMI and RFI filtered inputs
Industry-standard packages: VSSOP-8, SOT-23-5

Specifications

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)	2.5	Vos (offset voltage at 25°C) (max) (mV)	0.005
GBW (typ) (MHz)	10	Features	EMI Hardened, High Cload Drive, Zero Crossover, Zero Drift
Slew rate (typ) (V/µs)	5	Rail-to-rail	In, Out
Offset drift (typ) (µV/°C)	0.005	Iq per channel (typ) (mA)	1.7
Vn at 1 kHz (typ) (nV√Hz)	7	CMRR (typ) (dB)	138
Rating	Automotive	Operating temperature range (°C)	-40 to 125
TI functional safety category	Functional Safety-Capable	Input bias current (max) (pA)	350
Iout (typ) (A)	0.06	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)	-0.005
THD + N at 1 kHz (typ) (%)	0.0005