Datasheet LT1021 (Analog Devices) - 8

LT1021
W U TYPICAL PERFOR A CE CH C ARA TERISTICS Shunt Mode Current Limit Shunt Characteristics LT1021-10 LT1021-10 Thermal Regulation LT1021-10
1.8 60 INPUT PIN OPEN INPUT PIN OPEN VIN = 30V 1.6 ∆POWER = 200mW 50 1.4 LOAD 0 REGULATION 1.2 40 – 0.5 1.0 TJ = – 55°C 30 –1.0 THERMAL 0.8 REGULATION* –1.5 0.6 TJ = 25°C 20 OUTPUT CHANGE (mV) 0.4 CURRENT INTO OUTPUT (mA) TJ = 125°C CURRENT INTO OUTPUT (mA) I 10 LOAD = 10mA 0.2 0 0 0 2 4 6 8 10 12 0 2 4 6 8 10 12 14 16 18 0 20 40 60 80 100 120 140 OUTPUT TO GROUND VOLTAGE (V) OUTPUT VOLTAGE (V) TIME (ms) 1021 G28 1021 G29 *INDEPENDENT OF TEMPERATURE COEFFICIENT 1021 G30
Load Transient Response Load Transient Response Output Noise 0.1Hz to 10Hz LT1021-10, CLOAD = 0 LT1021-10, CLOAD = 1000pF LT1021-10
I FILTERING = 1 ZERO AT 0.1Hz SINK = 0.6mA ISINK = 0.8mA 2 POLES AT 10Hz ISOURCE = 0 ISOURCE = 0 50mV 20mV µV/DIV) 10µV (1ppm) 10mV 5mV ISINK = 1.2mA ISINK = 0.8mA ISOURCE = 0.2mA I ISOURCE = 0.5mA SINK = 1mA ISINK = 1.4mA OUTPUT VOLTAGE CHANGE OUTPUT VOLTAGE CHANGE ISOURCE = 2-10mA ISINK = 2-10mA ISOURCE = 2-10mA ISINK = 2-10mA OUTPUT VOLTAGE NOISE (10 ∆ISOURCE = 100µAP-P ∆ISINK = 100µAP-P ∆ISOURCE = 100µAP-P ∆ISINK = 100µAP-P 0 1 2 3 4 0 1 2 3 4 0 1 2 3 4 0 1 2 3 4 0 1 2 3 4 5 6 TIME (µs) TIME (µs) TIME (MINUTES) NOTE VERTICAL SCALE CHANGE NOTE VERTICAL SCALE CHANGE 1021 G33 BETWEEN SOURCING AND SINKING BETWEEN SOURCING AND SINKING 1021 G31 1021 G32 1021fc 8