INA128-HT Texas instruments

INA128-HT

Уточнить цену

INA128-HT

Уточнить цену

СРАВНИТЬ

В СРАВНЕНИИ

Уточнить цену

Описание

The INA128-HT and INA129-HT are low-power, general-purpose instrumentation amplifiers offering excellent accuracy. The versatile three-operational-amplifier design and small size make them ideal for a wide range of applications. Current-feedback input circuitry provides wide bandwidth even at high gain. A single external resistor sets any gain from 1 to 10000. The INA128-HT provides an industry-standard gain equation; the INA129-HT gain equation is compatible with the AD620. The INA128-HT and INA129-HT are laser trimmed for very low offset voltage (25 µV Typ) and high common-mode rejection (93 dB at G ≥ 100). These devices operate with power supplies as low as ±2.25 V, and quiescent current of 2 mA, typically. Internal input protection can withstand up to ±40 V without damage. Texas Instruments' high-temperature products use highly optimized silicon (die) solutions with design and process enhancements to maximize performance over extended temperatures. The INA129-HT is available in 8-pin ceramic DIP and 8-pin ceramic surface-mount packages, specified for the –55°C to 210°C temperature range. The INA128-HT is available in an 8-pin SOIC-8 surface-mount package, specified for the –55°C to 175°C temperature range.

Low Offset Voltage: 25 uV Typical
Low Input Bias Current: 50 nA Typical⁽¹⁾
High CMR: 95 dB Typical⁽¹⁾
Inputs Protected to ±40 V
Wide Supply Range: ±2.25 V to ±18 V
Low Quiescent Current: 2 mA Typical⁽¹⁾
APPLICATIONS
- Bridge Amplifiers
- Thermocouple Amplifiers
- RTD Sensor Amplifiers
- Medical Instrumentation
- Data Acquisition
- Supports Extreme Temperature Applications:
  - Controlled Baseline
  - One Assembly/Test Site
  - One Fabrication Site
  - Available in Extreme Temperature Ranges
    (–55°C to 210°C)⁽²⁾
  - Extended Product Life Cycle
  - Extended Product-Change Notification
  - Product Traceability

⁽¹⁾ Typical values for 210°C application.
⁽²⁾ Custom temperature ranges available.
All other trademarks are the property of their respective owners

Number of channels	1
Vs (max) (V)	36
Vs (min) (V)	4.5
Input offset (±) (max) (µV)	125
Voltage gain (min) (V/V)	1
Voltage gain (max) (V/V)	10000
Noise at 1 kHz (typ) (nV√Hz)	8
Features	Current Feedback, Overvoltage protection
CMRR (min) (dB)	113
Input offset drift (±) (max) (V/°C)	0.000001
Input bias current (±) (max) (nA)	10
Iq (typ) (mA)	0.7
Bandwidth at min gain (typ) (MHz)	1.3
Gain error (±) (max) (%)	0.7
Operating temperature range (°C)	-55 to 175
Rating	High Temp
Type	Resistor
Gain nonlinearity (±) (max) (%)	0.002
Output swing headroom (to negative supply) (typ) (V)	0.8
Output swing headroom (to positive supply) (typ) (V)	-0.9
Input common mode headroom (to negative supply) (typ) (V)	1.7
Input common mode headroom (to positive supply) (typ) (V)	-1.4
Noise at 0.1 Hz to 10 Hz (typ) (µVPP)	0.2