LT1791IS 60V RS485/RS422 transceiver with fault protection
peculiarity
- Rail-to-rail inputs and outputs
- Single-supply input range: -0.4V to 44V
- Micro: 50μA/Amplifier max
- MSOP package
- Specified 3V, 5V and ± 15V power supplies
- High output current: 20mA
- The output driver output compensates for 10,000 pF
- Reverse battery protection to 18V
- No power sequencing issues are required
- High voltage gain: 1500V/mV
- High CMRR: 98 dB
- No phase reversal
- Gain-bandwidth product: 200kHz
description
Dual LT ® 1490 and quad LT1491 op amps, a 2V to 44V drawing, each amplifier with a quiescent current of only 40μA total voltage all single and split supplies operate. These amplifiers reverse supply guarantee; They draw no current reverse supply voltage up to 18V. The input range of the LT1490/LT1491 includes two supplies, two supplies and output swings. As with most micropower op amps, the LT1490/LT1491 can drive heavy loads with its rail-to-rail output driver of 20 mA. The LT1490/LT1491 are unity-gain stable and selectable 0.22μF and 150 ohm compensation for capacitive loads up to 10,000 pF. The LT1490/LT1491 have a unique operation that is still higher than the high impedance input stage at positive supply. Enter 44V differential and common mode, even when a 3V supply is operating. Built-in resistors are fault-protected inputs up to 22V below negative supply voltages. Input below V-type or 22V output above 44V, no phase reversal V-type, independent V+. The LT1490 dual op amps are available in 8-lead MSOP, SO and PDIP packages. The quad LT1491 is available in 14-lead SO and PDIP packages. For new designs, the LT1490A/LT1491A are recommended instead of the LT1490A/LT1491A. See the LT1490A/LT1491A datasheet for details.