Datasheet LT6370 (Analog Devices) - 28
| Manufacturer | Analog Devices |
| Description | 25µV, 0.3µV/°C, Low Noise Instrumentation Amplifier |
| Pages / Page | 28 / 28 — TYPICAL APPLICATION. Remote Strain Gauge Amplifier. RELATED PARTS PART … |
| File Format / Size | PDF / 2.6 Mb |
| Document Language | English |
TYPICAL APPLICATION. Remote Strain Gauge Amplifier. RELATED PARTS PART NUMBER. DESCRIPTION. COMMENTS. Instrumentation Amplifiers
Model Line for this Datasheet
Text Version of Document
LT6370
TYPICAL APPLICATION Remote Strain Gauge Amplifier
LT6657-5 ALUMINUM ENCLOSURE USED +15V IN DIGIKEY P/N 377-2006-ND + OUT SHDN 2.39mm THICKNESS C1 +5V GND V 3.3µF STRAIN= O ! 24.2k $ ! 24.2k $ +15V 1mA •#1 UNSHIELDED + # & R2 R6 R &• 1+ # &•350' •GF " G2 % R " G1 % TWISTED PAIR 2.37k* 1.47k* – V 80’ IN LENGTH R9 0 V+ = 350'•2 4.75k REMOTELY LOCATED R V SENSOR RG1 LT6370 = 0 SENSOR 350Ω 2.67k* + REF + 700 C2 +15V V– 3.3µF R4 – 2.37k* –15V R7 V+ 5.1k RG2 OMEGA CORPORATION SGT-1/350-TY43 LT6370 R10 243* V GAGE FACTOR (GF) = 2 + O REF 3.74k C4 R = 350Ω VR1 DIGIKEY P/N 3386-101LF-ND V– 1µF 100Ω + C3 –15V 3.3µF OUTPUT DRIFT DUE TO R5 1/f NOISE = ~2mVPP 3.32k* +15V R8 R11 4.75k 4.75k – ADA4622-1 AD5602 + +5V VDD VOUT C5 SDA SCL 0.1µF –15V OPTIONAL DAC + OPAMP FOR OFFSET ADJUST - DEVICE DEOUPLING CAPS NOT SHOWN BUT REQUIRED * DENOTES THIN FILM RESISTOR - AMPLIFIER ASSEMBLY LOCATED AWAY FROM THE SENSOR (e.g. SUSUMU RG TYPE) FOR LOW 1/f NOISE 6370 TA06
RELATED PARTS PART NUMBER DESCRIPTION COMMENTS Instrumentation Amplifiers
AD8429 Low Noise Instrumentation Amplifier VS = 36V, IS = 6.7mA, VOS = 50µV, BW = 15MHz, eni = 1nV/√Hz, eno = 45nV/√Hz LTC1100 Zero-Drift Instrumentation Amplifier VS = 18V, IS = 2.4mA, VOS = 10μV, BW = 19kHz, 1.9µVP-P DC to 10Hz AD8421 Low Noise Instrumentation Amplifier VS = 36V, IS = 2mA, VOS = 25μV, BW = 10MHz, eni = 3nV/√Hz, eno = 60nV/√Hz AD8221 Low Power Instrumentation Amplifier VS = 36V, IS = 900μA, VOS = 25μV, BW = 825kHz, eni = 8nV/√Hz, eno = 75nV/√Hz LT1167 Instrumentation Amplifier VS = 36V, IS = 900μA, VOS = 40μV, BW = 1MHz, eni = 7.5nV/√Hz, eno = 67nV/√Hz AD620 Low Power Instrumentation Amplifier VS = 36V, IS = 900μA, VOS = 50μV, BW = 1MHz, eni = 9nV/√Hz, eno = 72nV/√Hz LTC6800 RRIO Instrumentation Amplifier VS = 5.5V, IS = 800μA, VOS = 100μV, BW = 200kHz, 2.5µVP-P DC to 10Hz LTC2053 Zero-Drift Instrumentation Amplifier VS = 11V, IS = 750μA, VOS = 10μV, BW = 200kHz, 2.5µVP-P DC to 10Hz LT1168 Low Power Instrumentation Amplifier VS = 36V, IS = 350μA, VOS = 40μV, BW = 400kHz, eni = 10nV/√Hz, eno = 165nV/√Hz
Operational Amplifiers
LTC2057 40V Zero Drift Op Amp VOS = 4μV, Drift = 15nV/°C, IB = 200pA, IS = 900μA
Analog to Digital Converters
LTC2389-18 18-Bit SAR ADC 2.5Msps, 99.8dB SNR, 162.5mW LTC2369-18 18-Bit SAR ADC 1.6Msps, 96.5dB SNR, 18mW Rev. 0 28 09/19 www.analog.com For more information www.analog.com ANALOG DEVICES, INC. 2019 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Theory of Operation Applications Information Typical Applications Package Description Typical Application Related Parts
TYPICAL APPLICATION Remote Strain Gauge Amplifier
LT6657-5 ALUMINUM ENCLOSURE USED +15V IN DIGIKEY P/N 377-2006-ND + OUT SHDN 2.39mm THICKNESS C1 +5V GND V 3.3µF STRAIN= O ! 24.2k $ ! 24.2k $ +15V 1mA •#1 UNSHIELDED + # & R2 R6 R &• 1+ # &•350' •GF " G2 % R " G1 % TWISTED PAIR 2.37k* 1.47k* – V 80’ IN LENGTH R9 0 V+ = 350'•2 4.75k REMOTELY LOCATED R V SENSOR RG1 LT6370 = 0 SENSOR 350Ω 2.67k* + REF + 700 C2 +15V V– 3.3µF R4 – 2.37k* –15V R7 V+ 5.1k RG2 OMEGA CORPORATION SGT-1/350-TY43 LT6370 R10 243* V GAGE FACTOR (GF) = 2 + O REF 3.74k C4 R = 350Ω VR1 DIGIKEY P/N 3386-101LF-ND V– 1µF 100Ω + C3 –15V 3.3µF OUTPUT DRIFT DUE TO R5 1/f NOISE = ~2mVPP 3.32k* +15V R8 R11 4.75k 4.75k – ADA4622-1 AD5602 + +5V VDD VOUT C5 SDA SCL 0.1µF –15V OPTIONAL DAC + OPAMP FOR OFFSET ADJUST - DEVICE DEOUPLING CAPS NOT SHOWN BUT REQUIRED * DENOTES THIN FILM RESISTOR - AMPLIFIER ASSEMBLY LOCATED AWAY FROM THE SENSOR (e.g. SUSUMU RG TYPE) FOR LOW 1/f NOISE 6370 TA06
RELATED PARTS PART NUMBER DESCRIPTION COMMENTS Instrumentation Amplifiers
AD8429 Low Noise Instrumentation Amplifier VS = 36V, IS = 6.7mA, VOS = 50µV, BW = 15MHz, eni = 1nV/√Hz, eno = 45nV/√Hz LTC1100 Zero-Drift Instrumentation Amplifier VS = 18V, IS = 2.4mA, VOS = 10μV, BW = 19kHz, 1.9µVP-P DC to 10Hz AD8421 Low Noise Instrumentation Amplifier VS = 36V, IS = 2mA, VOS = 25μV, BW = 10MHz, eni = 3nV/√Hz, eno = 60nV/√Hz AD8221 Low Power Instrumentation Amplifier VS = 36V, IS = 900μA, VOS = 25μV, BW = 825kHz, eni = 8nV/√Hz, eno = 75nV/√Hz LT1167 Instrumentation Amplifier VS = 36V, IS = 900μA, VOS = 40μV, BW = 1MHz, eni = 7.5nV/√Hz, eno = 67nV/√Hz AD620 Low Power Instrumentation Amplifier VS = 36V, IS = 900μA, VOS = 50μV, BW = 1MHz, eni = 9nV/√Hz, eno = 72nV/√Hz LTC6800 RRIO Instrumentation Amplifier VS = 5.5V, IS = 800μA, VOS = 100μV, BW = 200kHz, 2.5µVP-P DC to 10Hz LTC2053 Zero-Drift Instrumentation Amplifier VS = 11V, IS = 750μA, VOS = 10μV, BW = 200kHz, 2.5µVP-P DC to 10Hz LT1168 Low Power Instrumentation Amplifier VS = 36V, IS = 350μA, VOS = 40μV, BW = 400kHz, eni = 10nV/√Hz, eno = 165nV/√Hz
Operational Amplifiers
LTC2057 40V Zero Drift Op Amp VOS = 4μV, Drift = 15nV/°C, IB = 200pA, IS = 900μA
Analog to Digital Converters
LTC2389-18 18-Bit SAR ADC 2.5Msps, 99.8dB SNR, 162.5mW LTC2369-18 18-Bit SAR ADC 1.6Msps, 96.5dB SNR, 18mW Rev. 0 28 09/19 www.analog.com For more information www.analog.com ANALOG DEVICES, INC. 2019 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Theory of Operation Applications Information Typical Applications Package Description Typical Application Related Parts
