INA333-HT Datasheet, PDF (1/24 Pages) Texas Instruments – Micro-Power, Zerø-Drift, Rail-to-Rail Out Instrumentation Amplifier

INA333-HT
www.ti.com
SBOS514 – MARCH 2010
Micro-Power, Zerø-Drift, Rail-to-Rail Out
Instrumentation Amplifier
Check for Samples: INA333-HT
FEATURES
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•2 Low Offset Voltage: 25 mV (max at 25°C),
G ≥ 100
• Low Drift: 0.2 mV/°C, G ≥ 1000
• Low Noise: 55 nV/√Hz, G ≥ 100
• High CMRR: 100 dB (min at 25°C), G ≥ 10
• Supply Range: +1.8 V to +5.5 V
• Input Voltage: (V–) +0.1 V to (V+) –0.1 V
• Output Range: (V–) +0.05 V to (V+) –0.05V
• Low Quiescent Current: 198 mA
• RFI Filtered Inputs
APPLICATIONS
• Down-Hole Drilling
• High Temperature Environments
SUPPORTS EXTREME TEMPERATURE
APPLICATIONS
• Controlled Baseline
• One Assembly/Test Site
• One Fabrication Site
• Available in Extreme (–55°C/210°C)
Temperature Range⁽¹⁾
• Extended Product Life Cycle
• Extended Product-Change Notification
• Product Traceability
• Texas Instruments' high temperature products
utilize highly optimized silicon (die) solutions
with design and process enhancements to
maximize performance over extended
temperatures.
(1) Custom temperature ranges available
DESCRIPTION
The INA333 is a low-power, precision instrumentation amplifier offering excellent accuracy. The versatile 3-op
amp design, small size, and low power make it ideal for a wide range of portable applications.
A single external resistor sets any gain from 1 to 1000. The INA333 is designed to use an industry-standard gain
equation: G = 1 + (100kΩ/R_G).
The INA333 provides very low offset voltage (25 mV at 25°C, G ≥ 100), excellent offset voltage drift (0.2 mV/°C,
G ≥ 100), and high common-mode rejection (100 dB at 25°C, G ≥ 10). It operates with power supplies as low as
1.8 V (±0.9V), and quiescent current is only 50 mA—ideal for battery-operated systems. Using autocalibration
techniques to ensure excellent precision over the extended industrial temperature range, the INA333 also offers
exceptionally low noise density (55 nV/√Hz) that extends down to dc.
The INA333 is is specified over the T_A = –55°C to +210°C temperature range.
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010, Texas Instruments Incorporated