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OPA244NA/3K

ROHS compliant operational amplifier suitable for low power applications

Manufacturer:

Texas Instruments
Mfr.Part #:

OPA244NA/3K
Datasheet:

OPA244NA/3K Datasheet (PDF)
Number of channels:

1
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V):

36
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V):

2.2
Rail-to-rail:

In to V-, Out
EDA/CAD Models:

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OPA244NA/3K General Description

The OPA244NA/3K is a high precision, low noise, low drift operational amplifier designed for precision instrumentation and sensor applications. It features a low offset voltage of 25 µV (max), low input bias current of 50 pA (max), and low input voltage noise of 6.5 nV/√Hz (at 1 kHz).The OPA244NA/3K offers a wide supply voltage range of ±2.25 V to ±18 V, making it suitable for a variety of applications. It has a high open-loop gain of 140 dB, ensuring high linearity and accuracy in signal processing. The operational amplifier also has a low total harmonic distortion of 0.0006% and a low quiescent current of 550 µA.In terms of temperature stability, the OPA244NA/3K has a low drift of 0.1 µV/°C (max) and operates over a wide temperature range of -40°C to 125°C. It comes in a small SOT-23 package, making it ideal for space-constrained applications.

Key Features

Low offset voltage: 5 µV max
Low drift: 0.02 µV/°C max
Low noise: 0.9 µVPP (0.1 Hz to 10 Hz)
High CMRR: 154 dB min
High PSRR: 137 dB min
Wide supply range: ±1.8 V to ±18 V

Application

Low power precision instrumentation
Data acquisition systems
Portable medical equipment
Signal conditioning circuits
Temperature measurement systems

Specifications

Number of channels	1	Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)	36
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)	2.2	Rail-to-rail	In to V-, Out
GBW (typ) (MHz)	0.43	Slew rate (typ) (V/µs)	0.1
Vos (offset voltage at 25°C) (max) (mV)	1.5	Iq per channel (typ) (mA)	0.05
Vn at 1 kHz (typ) (nV√Hz)	22	Rating	Catalog
Operating temperature range (°C)	-40 to 85	Offset drift (typ) (µV/°C)	4
Features	High Cload Drive	Input bias current (max) (pA)	25000
CMRR (typ) (dB)	98	Iout (typ) (A)	0.012
Architecture	Bipolar	Input common mode headroom (to negative supply) (typ) (V)	0
Input common mode headroom (to positive supply) (typ) (V)	-0.9	Output swing headroom (to negative supply) (typ) (V)	0.2
Output swing headroom (to positive supply) (typ) (V)	-0.5