Datasheet LT1634 (Analog Devices) - 10

LT1634
applicaTions inForMaTion
The reverse characteristics of the LT1634 behave like VIN ≥ 10.5V a resistor in paral el with a Zener diode. This simple, RB = VOUT – 1.25V well behaved characteristic is important to the proper 10µA + operation of circuits like Figure 1. The adjustable output V LT1634-1.25 LT1495 OUT 1.5V TO 10V voltage reference depends upon positive feedback from – R1 50k TO 1.75M the LT1495’s output to start-up and regulate the bias cur- rent for the LT1634. R2 250k 1634 F01
Figure 1. Adjustable Output Voltage Reference Typical applicaTions The LT1634-5 Generates the LTC1448 Dual 12-Bit Reference for Micropower A/D Converter DAC’s Reference and Supply Voltage
5V 7.5V TO 12V 18k VIN LTC1286 3.48k LTC1448 1 8 VREF VCC 5V 1 8 CLK V V 2 7 OUTB OUTB µC/µP +IN CLK 0.1µF 2 7 0.1µF SERIAL D V 3 6 µC/µP IN CC LT1634-4.096 –IN D INTERFACE 0.1µF OUT SERIAL 3 6 LT1634-5 CS/LD GND 4 5 INTERFACE GND CS/SHDN 4 5 REF VOUTA VOUTA 1634 TA03 0.1µF 1634 TA04 1634ff 10 For more information www.linear.com/LT1634 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Applications Information Typical Application Related Parts