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INA849DR

Ultra-low noise (1 nV/√Hz), high-speed (28 MHz, 35 V/μ), precision (35 μV) instrumentation amplifier

Manufacturer:

TI
Mfr.Part #:

INA849DR
Datasheet:

INA849DR Datasheet (PDF)
Number of channels:

1
Vs (max) (V):

36
Vs (min) (V):

8
Input offset (±) (max) (µV):

35
EDA/CAD Models:

Request Free CAD Models for INA849DR

Email: [email protected]

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Tel: +852 95804164

INA849DR General Description

Instrumentation Amplifiers Ultra-low noise (1 nV/ Hz), high-speed (28 MHz, 35 V/ ), precision (35 V) instrumentation amplifier 8-SOIC -40 to 125

The INA849 is an ultra-low noise instrumentation amplifier optimized for maximum accuracy in high-resolution systems and operation over a wide single-supply or dual-supply range. The device offers significantly lower input bias current than competitors as a result of super-beta input transistors. A state-of-the-art manufacturing process provides exceptionally low voltage noise, input offset voltage, and offset voltage drift.

Key Features

Ultra-low noise: 1-nV/√Hz input voltage noise (typical)
Precision super-beta input performance:
- Low offset voltage: 35 µV (maximum)
- Low offset voltage drift: 0.4 µV/°C (maximum)
- Low input bias current: 20 nA (maximum)
- Low gain drift: 5 ppm/°C for G = 1 (maximum)
Bandwidth: 28 MHz (G = 1), 8 MHz (G = 100)
Slew rate: 35 V/µs
Common-mode rejection: 120 dB (minimum) for maximum gain
Supply range:
- Single supply: 8 V to 36 V
- Dual supply: ±4 V to ±18 V
Specified temperature range: –40°C to +125°C
Packages: 8-pin SOIC and VSSOP

Application

Precision Signal Conditioning: It is used in instrumentation and measurement equipment where precision signal conditioning is essential.
Sensor Interfaces: In sensor interfaces where amplification and conditioning of signals from sensors like thermocouples, pressure sensors, and strain gauges are necessary.
Battery-Powered Devices: Due to its low power consumption, it is suitable for battery-powered devices such as portable medical instruments and data loggers.
Audio Equipment: In some cases, it may be used in audio pre-amplifiers and line drivers for high-quality audio applications.
Control Systems: It can be utilized in control systems for amplifying control signals.

Specifications

Number of channels	1	Vs (max) (V)	36
Vs (min) (V)	8	Input offset (±) (max) (µV)	35
Voltage gain (min) (V/V)	1	Voltage gain (max) (V/V)	10000
Noise at 1 kHz (typ) (nV√Hz)	1	Features	Current Feedback, High speed, Super-beta, Ultra-low noise
CMRR (min) (dB)	120	Input offset drift (±) (max) (V/°C)	0.0000004
Input bias current (±) (max) (nA)	20	Iq (typ) (mA)	6.2
Bandwidth at min gain (typ) (MHz)	28	Gain error (±) (max) (%)	0.1
Operating temperature range (°C)	-40 to 125	Rating	Catalog
Type	Resistor	Gain nonlinearity (±) (max) (%)	0.001
Output swing headroom (to negative supply) (typ) (V)	0.15	Output swing headroom (to positive supply) (typ) (V)	-0.15
Input common mode headroom (to negative supply) (typ) (V)	2.5	Input common mode headroom (to positive supply) (typ) (V)	-2.5
Noise at 0.1 Hz to 10 Hz (typ) (µVPP)	0.06	feature-number-of-channels-per-chip	1
feature-rail-to-rail		feature-typical-gain-bandwidth-product-mhz
feature-maximum-input-offset-voltage-mv	0.035@±15V	feature-maximum-operating-supply-voltage-v	36\|±18
feature-maximum-input-bias-current-ua	0.02@±15V	feature-packaging	Tape and Reel
feature-rad-hard		feature-pin-count	8
feature-cecc-qualified		feature-esd-protection	Yes
feature-military	No	feature-aec-qualified	No
feature-aec-qualified-number		feature-auto-motive	No
feature-p-pap	No	feature-eccn-code	EAR99
feature-svhc		feature-svhc-exceeds-threshold	No