Datasheet LT1920 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | Single Resistor Gain Programmable, Precision Instrumentation Amplifier |
| Pages / Page | 12 / 5 — TYPICAL PERFOR A CE CHARACTERISTICS. Positive Power Supply Rejection … |
| File Format / Size | PDF / 308 Kb |
| Document Language | English |
TYPICAL PERFOR A CE CHARACTERISTICS. Positive Power Supply Rejection Ratio vs Frequency. Gain vs Frequency
Model Line for this Datasheet
Text Version of Document
LT1920
W U TYPICAL PERFOR A CE CHARACTERISTICS Positive Power Supply Rejection Ratio vs Frequency Gain vs Frequency Supply Current vs Supply Voltage
160 60 1.50 V – = – 15V G = 1000 140 TA = 25°C 50 G = 10 G = 1000 G = 100 120 G = 100 40 1.25 100 G = 1 30 85°C G = 10 25°C 80 20 1.00 GAIN (dB) 60 10 – 40°C G = 1 40 0 SUPPLY CURRENT (mA) 0.75 20 –10 VS = ±15V TA = 25°C – 20 POSITIVE POWER SUPPLY REJECTION RATIO (dB) 0 0.50 0.1 1 10 100 1k 10k 100k 0.01 0.1 1 10 100 1000 0 5 10 15 20 FREQUENCY (Hz) FREQUENCY (kHz) SUPPLY VOLTAGE (± V) 1920 G17 1920 G16 1920 G18
Voltage Noise Density 0.1Hz to 10Hz Noise Voltage, 0.1Hz to 10Hz Noise Voltage, RTI vs Frequency G = 1 G = 1000
1000 V V V S = ±15V S = ±15V S = ±15V T T T A = 25°C A = 25°C A = 25°C √Hz) 1/fCORNER = 10Hz 100 GAIN = 1 µV/DIV) µV/DIV) 1/fCORNER = 9Hz GAIN = 10 1/fCORNER = 7Hz 10 GAIN = 100, 1000 NOISE VOLTAGE (2 NOISE VOLTAGE (0.2 VOLTAGE NOISE DENSITY (nV BW LIMIT GAIN = 1000 0 1 10 100 1k 10k 100k 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 FREQUENCY (Hz) TIME (SEC) TIME (SEC) 1920 G19 1920 G20 1920 G21
Current Noise Density vs Frequency 0.1Hz to 10Hz Current Noise Short-Circuit Current vs Time
1000 50 VS = ±15V V V S = ±15V S = ±15V T 40 A = 25°C TA = 25°C √Hz) TA = –40°C 30 TA = 25°C 20 (SOURCE) 10 TA = 85°C 100 0 RS – 10 TA = 85°C – 20 OUTPUT CURRENT (mA) CURRENT NOISE (5pA/DIV) (SINK) – 30 CURRENT NOISE DENSITY (fA/ TA = –40°C TA = 25°C – 40 10 – 50 1 10 100 1000 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 FREQUENCY (Hz) TIME (SEC) TIME FROM OUTPUT SHORT TO GROUND (MINUTES) 1920 G22 1920 G23 1920 G24 5
W U TYPICAL PERFOR A CE CHARACTERISTICS Positive Power Supply Rejection Ratio vs Frequency Gain vs Frequency Supply Current vs Supply Voltage
160 60 1.50 V – = – 15V G = 1000 140 TA = 25°C 50 G = 10 G = 1000 G = 100 120 G = 100 40 1.25 100 G = 1 30 85°C G = 10 25°C 80 20 1.00 GAIN (dB) 60 10 – 40°C G = 1 40 0 SUPPLY CURRENT (mA) 0.75 20 –10 VS = ±15V TA = 25°C – 20 POSITIVE POWER SUPPLY REJECTION RATIO (dB) 0 0.50 0.1 1 10 100 1k 10k 100k 0.01 0.1 1 10 100 1000 0 5 10 15 20 FREQUENCY (Hz) FREQUENCY (kHz) SUPPLY VOLTAGE (± V) 1920 G17 1920 G16 1920 G18
Voltage Noise Density 0.1Hz to 10Hz Noise Voltage, 0.1Hz to 10Hz Noise Voltage, RTI vs Frequency G = 1 G = 1000
1000 V V V S = ±15V S = ±15V S = ±15V T T T A = 25°C A = 25°C A = 25°C √Hz) 1/fCORNER = 10Hz 100 GAIN = 1 µV/DIV) µV/DIV) 1/fCORNER = 9Hz GAIN = 10 1/fCORNER = 7Hz 10 GAIN = 100, 1000 NOISE VOLTAGE (2 NOISE VOLTAGE (0.2 VOLTAGE NOISE DENSITY (nV BW LIMIT GAIN = 1000 0 1 10 100 1k 10k 100k 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 FREQUENCY (Hz) TIME (SEC) TIME (SEC) 1920 G19 1920 G20 1920 G21
Current Noise Density vs Frequency 0.1Hz to 10Hz Current Noise Short-Circuit Current vs Time
1000 50 VS = ±15V V V S = ±15V S = ±15V T 40 A = 25°C TA = 25°C √Hz) TA = –40°C 30 TA = 25°C 20 (SOURCE) 10 TA = 85°C 100 0 RS – 10 TA = 85°C – 20 OUTPUT CURRENT (mA) CURRENT NOISE (5pA/DIV) (SINK) – 30 CURRENT NOISE DENSITY (fA/ TA = –40°C TA = 25°C – 40 10 – 50 1 10 100 1000 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 FREQUENCY (Hz) TIME (SEC) TIME FROM OUTPUT SHORT TO GROUND (MINUTES) 1920 G22 1920 G23 1920 G24 5
