Datasheet LT1097 (Analog Devices) - 10

LT1097
U U W U APPLICATIONS INFORMATION
The availability of the compensation terminal permits the use protection diodes effectively short the output to the input of feedforward frequency compensation to enhance slew during slewing, and a current, limited only by the output rate. The voltage follower feedforward scheme bypasses the short circuit protection will flow through the diodes. amplifier’s gain stages and slews at nearly 10V/µs. The use of a feedback resistor, as shown in the voltage The inputs of the LT1097 are protected with back-to-back follower feedforward diagram, is recommended because diodes. In the voltage follower configuration, when the this resistor keeps the current below the short circuit limit, input is driven by a fast, large signal pulse (>1V), the input resulting in faster recovery and settling of the output.
Follower Feedforward Pulse Response of Feedforward Test Circuit for Offset Voltage and Compensation Compensation its Drift with Temperature
50pF 50k* 15V 10k 2 7 – 2 5V/DIV 6 – 100Ω* LT1097 VO 6 3 LT1097 OUT + 5k 3 5 4 IN + 50k* –15V 1097 G20 0.01µF 5µs/DIV VO = 1000VOS LT1097•F03 *RESISTORS MUST HAVE LOW THERMOELECTRIC POTENTIAL LT1097•F04
U TYPICAL APPLICATIO Low Power Comparator with <10
µ
V Hysteresis
5V 1k 100k 330k 7 10k OUT 2 +IN – 620k 1 6 2N3904 LT1097 10k 3 100k –IN + 4 –5V LT1097•TA02 10