INA333 Amplifier Datasheet

INA333 Datasheet, PDF, Equivalent


Part Number

INA333

Description

Rail-to-Rail Out Instrumentation Amplifier

Manufacture

etcTI

Total Page 30 Pages
Datasheet
Download INA333 Datasheet


INA333
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
INA333
SBOS445C – JULY 2008 – REVISED DECEMBER 2015
INA333 Micro-Power (50μA), Zerø-Drift, Rail-to-Rail Out Instrumentation Amplifier
1 Features
1 Low Offset Voltage: 25 μV (Maximum), G 100
• Low Drift: 0.1 μV/°C, G 100
• Low Noise: 50 nV/Hz, G 100
• High CMRR: 100 dB (Minimum), G 10
• Low Input Bias Current: 200 pA (Maximum)
• 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+) –0.05 V
• Low Quiescent Current: 50 μA
• Operating Temperature: –40°C to +125°C
• RFI Filtered Inputs
• 8-Pin VSSOP and 8-Pin WSON Packages
2 Applications
• Bridge Amplifiers
• ECG Amplifiers
• Pressure Sensors
• Medical Instrumentation
• Portable Instrumentation
• Weigh Scales
• Thermocouple Amplifiers
• RTD Sensor Amplifiers
• Data Acquisition
3 Description
The INA333 device is a low-power, precision
instrumentation amplifier offering excellent accuracy.
The versatile 3-operational amplifier 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 + (100 k/ RG).
The INA333 device provides very low offset voltage
(25 μV, G 100), excellent offset voltage drift
(0.1 μV/°C, G 100), and high common-mode
rejection (100 dB at G 10). It operates with power
supplies as low as 1.8 V (±0.9 V) and quiescent
current is only 50 μA, making it ideal for battery-
operated systems. Using autocalibration techniques
to ensure excellent precision over the extended
industrial temperature range, the INA333 device also
offers exceptionally low noise density (50 nV/Hz)
that extends down to DC.
The INA333 device is available in both 8-pin VSSOP
and WSON surface-mount packages and is specified
over the TA = –40°C to +125°C temperature range.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
INA333
VSSOP (8)
WSON (8)
3.00 mm × 3.00 mm
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
2
VIN-
1
RG
8
Simplified Schematic
V+
7
RFI Filtered Inputs
RFI Filtered Inputs
50kW
A1
150kW
50kW
150kW
A3
6 VOUT
3
VIN+
RFI Filtered Inputs
RFI Filtered Inputs
A2
4
V-
150kW
150kW
5
REF
INA333
100kW
G=1+
RG
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.

INA333
INA333
SBOS445C – JULY 2008 – REVISED DECEMBER 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information ................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Typical Characteristics .............................................. 7
7 Detailed Description ............................................ 13
7.1 Overview ................................................................. 13
7.2 Functional Block Diagram ....................................... 13
7.3 Feature Description................................................. 13
7.4 Device Functional Modes........................................ 13
8 Application and Implementation ........................ 14
8.1 Application Information............................................ 14
8.2 Typical Application ................................................. 14
9 Power Supply Recommendations...................... 19
10 Layout................................................................... 20
10.1 Layout Guidelines ................................................. 20
10.2 Layout Example .................................................... 20
11 Device and Documentation Support ................. 21
11.1 Device Support...................................................... 21
11.2 Documentation Support ........................................ 22
11.3 Trademarks ........................................................... 22
11.4 Electrostatic Discharge Caution ............................ 22
11.5 Glossary ................................................................ 23
12 Mechanical, Packaging, and Orderable
Information ........................................................... 23
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision B (October 2008) to Revision C
Page
• Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section ................................................................................................. 1
2 Submit Documentation Feedback
Product Folder Links: INA333
Copyright © 2008–2015, Texas Instruments Incorporated


Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community INA333 SBOS445C – JULY 200 8 – REVISED DECEMBER 2015 INA333 Micr o-Power (50μA), Zerø-Drift, Rail-to-R ail Out Instrumentation Amplifier 1 Fe atures •1 Low Offset Voltage: 25 μV (Maximum), G ≥ 100 • Low Drift: 0.1 μV/°C, G ≥ 100 • Low Noise: 50 n V/√Hz, G ≥ 100 • High CMRR: 100 d B (Minimum), G ≥ 10 • Low Input Bia s Current: 200 pA (Maximum) • Supply Range: 1.8 V to 5.5 V • Input Voltage : (V–) +0.1 V to (V+) –0.1 V • Ou tput Range: (V–) +0.05 V to (V+) –0 .05 V • Low Quiescent Current: 50 μA • Operating Temperature: –40°C to +125°C • RFI Filtered Inputs • 8- Pin VSSOP and 8-Pin WSON Packages 2 App lications • Bridge Amplifiers • ECG Amplifiers • Pressure Sensors • Me dical Instrumentation • Portable Inst rumentation • Weigh Scales • Thermo couple Amplifiers • RTD Sensor Amplif iers • Data Acquisition 3 Description The INA333 device is a low-power, precision instrumentation amplifier offering excellent accurac.
Keywords INA333, datasheet, pdf, etcTI, Rail-to-Rail, Out, Instrumentation, Amplifier, NA333, A333, 333, INA33, INA3, INA, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)