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Tailor your signal chain with confidenceLT1920
PRODUCTIONSingle Resistor Gain Programmable, Precision Instrumentation Amplifier
- Part Models
- 6
- 1ku List Price
- Starting From $4.32
Part Details
- Single Gain Set Resistor: G = 1 to 10,000
- Gain Error: G = 10, 0.3% Max
- Gain Nonlinearity: G = 10, 30ppm Max
- Input Offset Voltage: G = 10, 225µV Max
- Input Offset Voltage Drift: 1µV/°C Max
- Input Bias Current: 2nA Max
- PSRR at G = 1: 80dB Min
- CMRR at G = 1: 75dB Min
- Supply Current: 1.3mA Max
- Wide Supply Range: ±2.3V to ±18V
- 1kHz Voltage Noise: 7.5nV/√Hz
- 0.1Hz to 10Hz Noise: 0.28µVP-P
- Available in 8-Pin PDIP and SO Packages
- Meets IEC 1000-4-2 Level 4 ESD Tests with Two External 5k Resistors
The LT1920 is a low power, precision instrumentation amplifier that requires only one external resistor to set gains of 1 to 10,000. The low voltage noise of 7.5nV/√Hz (at 1kHz) is not compromised by low power dissipation (0.9mA typical for ±2.3V to ±15V supplies).
The high accuracy of 30ppm maximum nonlinearity and 0.3% max gain error (G = 10) is not degraded even for load resistors as low as 2k (previous monolithic instrumentation amps used 10k for their nonlinearity specifications). The LT1920 is laser trimmed for very low input offset voltage (125µV max), drift (1µV/°C), high CMRR (75dB, G = 1) and PSRR (80dB, G = 1). Low input bias currents of 2nA max are achieved with the use of superbeta processing. The output can handle capacitive loads up to 1000pF in any gain configuration while the inputs are ESD protected up to 13kV (human body). The LT1920 with two external 5k resistors passes the IEC 1000-4-2 level 4 specification.
The LT1920, offered in 8-pin PDIP and SO packages, is a pin for pin and spec for spec improved replacement for the AD620. The LT1920 is the most cost effective solution for precision instrumentation amplifier applications. For even better guaranteed performance, see the LT1167.
Applications
- Bridge Amplifiers
- Strain Gauge Amplifiers
- Thermocouple Amplifiers
- Differential to Single-Ended Converters
- Medical Instrumentation
Documentation
Data Sheet 1
Reliability Data 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
---|---|---|---|
LT1920CN8#PBF | 8-Lead PDIP (Narrow 0.3 Inch) | ||
LT1920CS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
LT1920CS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
LT1920IN8#PBF | 8-Lead PDIP (Narrow 0.3 Inch) | ||
LT1920IS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
LT1920IS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) |
Part Models | Product Lifecycle | PCN |
---|---|---|
Oct 8, 2024 - 24_0234 Migrating Bottom Trace Code Marking to Top Side Laser Marking for PDIP Package |
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LT1920CN8#PBF | PRODUCTION | |
LT1920IN8#PBF | PRODUCTION | |
Oct 11, 2022 - 22_0241 Epoxy Change from Henkel 8290 to 8290A for PDIP Package |
||
LT1920CN8#PBF | PRODUCTION | |
LT1920IN8#PBF | PRODUCTION | |
Aug 6, 2022 - 22_0172 Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG] |
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LT1920CN8#PBF | PRODUCTION | |
LT1920IN8#PBF | PRODUCTION | |
Oct 24, 2024 - 24_0246 Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package |
||
LT1920CS8#PBF | PRODUCTION | |
LT1920CS8#TRPBF | PRODUCTION | |
LT1920IS8#PBF | PRODUCTION | |
LT1920IS8#TRPBF | PRODUCTION | |
Oct 12, 2022 - 22_0255 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2) |
||
LT1920CS8#PBF | PRODUCTION | |
LT1920CS8#TRPBF | PRODUCTION | |
LT1920IS8#PBF | PRODUCTION | |
LT1920IS8#TRPBF | PRODUCTION | |
Jun 16, 2021 - 21_0026 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM |
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LT1920CS8#PBF | PRODUCTION | |
LT1920CS8#TRPBF | PRODUCTION | |
LT1920IS8#PBF | PRODUCTION | |
LT1920IS8#TRPBF | PRODUCTION |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareTools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LT1920
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.