Linear Technology LT1990
The LT1990 operates over a ±250V common mode voltage range on a ±15V supply. The inputs are fault protected from common mode voltage transients up to ±350V and differential voltages up to ±500V. The LT1990 is ideally suited for both high side and low side current or voltage monitoring.| Part No. | LT1990 |
|---|---|
| Datasheet | LT1990 Download |
| Manufacturer |  Linear Technology |
| Description | Difference Amplifier |
| Buy | Stock & Price |
FEATURES
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● Battery Cell Voltage Monitoring High Voltage Current Sensing Signal Acquisition in Noisy Environments Input Protection Fault Protected Front Ends Level Sensing Isolation TYPICAL APPLICATIO +VSOURCE Full-Bridge Load Current Monitor 5V LT1990 900k 7 2 1M 100k 10k 8 – + IL RS 3 VREF = 1.5V 4 IN OUT LT6650 GND FB 54.9k 1nF 40k 40k 20k 1 1µF 1990 TA01 1M –12V ≤ VCM ≤ 73V VOUT = VREF ± (10
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● RS) U – + U APPLICATIO S U 6 VOUT 10k 900k 100k 5 1990f 1 LT1990 ABSOLUTE (Notes 1, 2) AXI U RATI GS U W U PACKAGE/ORDER I FOR ATIO ORDER PART NUMBER TOP VIEW REF 1 –IN 2 +IN 3 V– 4 8 7 6 5 GAIN1 V+ OUT GAIN2 Total Supply Voltage (V + to V –) ............................... 36V Input Voltage Range Continuous ...................................................... ±250V Transient (0.1s) ............................................... ±350V Differential ....................................................... ±500V Output Short-Circuit Duration (Note 3) ............ Indefinite Operating Temperature Range (Note 4) ...–40°C to 85°C Specified Temperature Range (Note 5) ....–40°C to 85°C Storage Temperature Range ..................
