Datasheet LT1997-1 (Analog Devices) - 25
| 制造商 | Analog Devices |
| 描述 | Precision, High Voltage, Gain Selectable Difference/Current Sense Amplifier |
| 页数 / 页 | 30 / 25 — TYPICAL APPLICATIONS. Floating Input Difference Amplifier. Create a … |
| 文件格式/大小 | PDF / 1.5 Mb |
| 文件语言 | 英语 |
TYPICAL APPLICATIONS. Floating Input Difference Amplifier. Create a Supply Using Control Signal
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LT1997-1
TYPICAL APPLICATIONS Floating Input Difference Amplifier
VS –INA –INB –INC V+ LT1997-1 3k 7.5k 150k 15k – OUT VDIFF V 15k + OUT = VS/2 + 50 • VDIFF VS 7.5k 300k REF2 3k 300k REF1 +INA +INB +INC SHDN V– 19971 TA04 VS THE INPUT SIGNAL FLOATS. THE VOLTAGE AT THE REF INPUTS AND THE OUTPUT VOLTAGE DETERMINE THE COMMON MODE VOLTAGE AT THE INPUT
Create a Supply Using Control Signal
V+ –INA –INB –INC V+ LT1997-1 3k 7.5k 150k 15k – OUT V 15k + OUT = VBATT + 10 • VCTRL VOUT CONNECTS TO LOAD 7.5k 300k REF2 3k 300k REF1 VBATT +INA +INB +INC SHDN V– 19971 TA05 V+ V– + VCTRL – THIS CIRCUIT USES A GROUND-REFERENCED CONTROL SIGNAL TO CREATE A SUPPLY ON TOP OF AN EXISTING SUPPLY (VBATT) Rev 0 For more information www.analog.com 25 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Block Diagram Applications Information Package Description Typical Application Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Package Description Typical Application Related Parts
TYPICAL APPLICATIONS Floating Input Difference Amplifier
VS –INA –INB –INC V+ LT1997-1 3k 7.5k 150k 15k – OUT VDIFF V 15k + OUT = VS/2 + 50 • VDIFF VS 7.5k 300k REF2 3k 300k REF1 +INA +INB +INC SHDN V– 19971 TA04 VS THE INPUT SIGNAL FLOATS. THE VOLTAGE AT THE REF INPUTS AND THE OUTPUT VOLTAGE DETERMINE THE COMMON MODE VOLTAGE AT THE INPUT
Create a Supply Using Control Signal
V+ –INA –INB –INC V+ LT1997-1 3k 7.5k 150k 15k – OUT V 15k + OUT = VBATT + 10 • VCTRL VOUT CONNECTS TO LOAD 7.5k 300k REF2 3k 300k REF1 VBATT +INA +INB +INC SHDN V– 19971 TA05 V+ V– + VCTRL – THIS CIRCUIT USES A GROUND-REFERENCED CONTROL SIGNAL TO CREATE A SUPPLY ON TOP OF AN EXISTING SUPPLY (VBATT) Rev 0 For more information www.analog.com 25 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Block Diagram Applications Information Package Description Typical Application Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Package Description Typical Application Related Parts