Datasheet LT1389 (Analog Devices) - 6
| Hersteller | Analog Devices |
| Beschreibung | Nanopower Precision Shunt Voltage Reference |
| Seiten / Seite | 12 / 6 — 2.5V TYPICAL PERFOR A CE CHARACTERISTICS. Reverse Voltage Change. Reverse … |
| Dateiformat / Größe | PDF / 219 Kb |
| Dokumentensprache | Englisch |
2.5V TYPICAL PERFOR A CE CHARACTERISTICS. Reverse Voltage Change. Reverse Characteristics. Temperature Drift. vs Current
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LT1389
W U 2.5V TYPICAL PERFOR A CE CHARACTERISTICS Reverse Voltage Change Reverse Characteristics Temperature Drift vs Current
1000 4.0 2.0 TA = –40°C TO 85°C 3.0 800 1.6 2.0 – 40°C 1.0 600 1.2 0 IR = 250µA 400 –1.0 0.8 IR = 0.9µA 25°C REVERSE CURRENT (nA) – 2.0 200 0.4 REVERSE VOLTAGE CHANGE (mV) –3.0 REVERSE VOLTAGE CHANGE (mV) 85°C 0 – 4.0 0 0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 – 40 –20 0 20 40 60 80 0.001 0.01 0.1 1 10 REVERSE VOLTAGE (V) TEMPERATURE (°C) REVERSE CURRENT (mA) 1389-2.5 G01 1389-2.5 TA02 1389-2.5 G03
Reverse Dynamic Impedance Dynamic Impedance vs Frequency Forward Characteristics
1000 100 1.0 TA = 25°C TA = 25°C TA = 25°C f = 25Hz 0.9 ) 0.8 Ω 100 Ω 10 0.7 IR = 0.9µA C 0.6 OUT = 0µF 10 I 1 R = 0.9µA 0.5 COUT = 0.033µF 0.4 I 0.3 R = 10µA DYNAMIC IMPEDANCE ( 1 0.1 FORWARD VOLTAGE (V) DYNAMIC IMPEDANCE (k COUT = 0.22µF I 0.2 R = 10µA COUT = 0µF 0.1 0.1 0.01 0 0.001 0.01 0.1 1 10 0.01 0.1 1 10 0.001 0.01 0.1 1 10 100 REVERSE CURRENT (mA) FREQUENCY (kHz) FORWARD CURRENT (mA) 1389-2.5 G04 1389-2.5 G05 1389-2.5 G06
0.1Hz to 10Hz Noise Response Time Response Time
100 IR = 0.9µA 3V 3V 80 2V 2V 60 1V 1V 40 0V 0V µV/DIV) 20 5V 5V 0 0V 0V – 20 – 40 I 1389-2.5 G09 R = 0.9µA 1ms/DIV 1389-2.5 G08 IR = 0.9µA 200ms/DIV NOISE VOLTAGE ( C C OUT = 0µF OUT = 0.1µF – 60 – 80 –100 0 10 20 30 40 50 60 70 TIME (SEC) 1389-2.5 G07 6
W U 2.5V TYPICAL PERFOR A CE CHARACTERISTICS Reverse Voltage Change Reverse Characteristics Temperature Drift vs Current
1000 4.0 2.0 TA = –40°C TO 85°C 3.0 800 1.6 2.0 – 40°C 1.0 600 1.2 0 IR = 250µA 400 –1.0 0.8 IR = 0.9µA 25°C REVERSE CURRENT (nA) – 2.0 200 0.4 REVERSE VOLTAGE CHANGE (mV) –3.0 REVERSE VOLTAGE CHANGE (mV) 85°C 0 – 4.0 0 0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 – 40 –20 0 20 40 60 80 0.001 0.01 0.1 1 10 REVERSE VOLTAGE (V) TEMPERATURE (°C) REVERSE CURRENT (mA) 1389-2.5 G01 1389-2.5 TA02 1389-2.5 G03
Reverse Dynamic Impedance Dynamic Impedance vs Frequency Forward Characteristics
1000 100 1.0 TA = 25°C TA = 25°C TA = 25°C f = 25Hz 0.9 ) 0.8 Ω 100 Ω 10 0.7 IR = 0.9µA C 0.6 OUT = 0µF 10 I 1 R = 0.9µA 0.5 COUT = 0.033µF 0.4 I 0.3 R = 10µA DYNAMIC IMPEDANCE ( 1 0.1 FORWARD VOLTAGE (V) DYNAMIC IMPEDANCE (k COUT = 0.22µF I 0.2 R = 10µA COUT = 0µF 0.1 0.1 0.01 0 0.001 0.01 0.1 1 10 0.01 0.1 1 10 0.001 0.01 0.1 1 10 100 REVERSE CURRENT (mA) FREQUENCY (kHz) FORWARD CURRENT (mA) 1389-2.5 G04 1389-2.5 G05 1389-2.5 G06
0.1Hz to 10Hz Noise Response Time Response Time
100 IR = 0.9µA 3V 3V 80 2V 2V 60 1V 1V 40 0V 0V µV/DIV) 20 5V 5V 0 0V 0V – 20 – 40 I 1389-2.5 G09 R = 0.9µA 1ms/DIV 1389-2.5 G08 IR = 0.9µA 200ms/DIV NOISE VOLTAGE ( C C OUT = 0µF OUT = 0.1µF – 60 – 80 –100 0 10 20 30 40 50 60 70 TIME (SEC) 1389-2.5 G07 6