Datasheet LT1970 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | 500mA Power Op Amp with Adjustable Precision Current Limit |
| Pages / Page | 26 / 5 — Typical perForMance characTerisTics. Open-Loop Gain and Phase. Supply … |
| File Format / Size | PDF / 402 Kb |
| Document Language | English |
Typical perForMance characTerisTics. Open-Loop Gain and Phase. Supply Current vs Supply Voltage. vs Frequency
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LT1970
Typical perForMance characTerisTics Open-Loop Gain and Phase Supply Current vs Supply Voltage vs Frequency Phase Margin vs Supply Voltage
4.5 70 100 60 I + V AV = –1 4.0 60 90 58 RF = RG = 1k I – V TA = 25°C 3.5 50 80 PHASE MARGIN (DEG) 56 GAIN PHASE VOUT = VS/2 40 70 3.0 I 54 VCC 30 60 52 2.5 20 50 50 2.0 IVEE 10 40 48 1.5 0 30 46 SUPPLY CURRENT (mA) OPEN-LOOP GAIN (dB) PHASE MARGIN (DEG) 1.0 –10 20 44 0.5 TA = 25°C –20 10 42 VCC = V+ = –VEE = –V– 0 –30 0 40 2 4 6 8 10 12 14 16 18 20 100 1k 10k 100k 1M 10M 100M 0 4 8 12 16 20 24 28 32 36 SUPPLY VOLTAGE (±V) FREQUENCY (Hz) TOTAL SUPPLY VOLTAGE (V) 1970 G05 1870 G04 1970 G06
Gain Bandwidth vs Supply Voltage Gain vs Frequency Gain vs Frequency with C LOAD
5 10 10 AV = 100 AV = 1 VS = ±15V AV = 1 30nF 10nF 4 0 0 1nF VS = ±15V 3 –10 –10 VS = ±5V 0nF 2 –20 –20 VOLTAGE GAIN (dB) VOLTAGE GAIN (dB) GAIN BANDWIDTH (MHz) 1 –30 –30 0 –40 –40 0 4 8 12 16 20 24 28 32 36 10k 100k 1M 10M 10k 100k 1M 10M TOTAL SUPPLY VOLTAGE (V) FREQUENCY (Hz) FREQUENCY (Hz) 1970 G09 1970 G07 1970 G08
Output Impedance Disabled Output Impedance Slew Rate vs Supply Voltage
100 600k 1.8 VS = ±15V VS = ±15V 100k VENABLE = 0.8V 1.7 10 FALLING 1.6 AV = 100 10k RISING 1 1.5 A 1k 1.4 V = 10 0.1 AV = 1 1.3 100 SLEW RATE (V/µs) OUTPUT IMPEDANCE (Ω) OUTPUT IMPEDANCE (Ω) 1.2 0.01 10 AV = –1 1.1 RF = RG = 1k TA = 25°C 0.001 1 1.0 1k 10k 100k 1M 10M 100M 1k 10k 100k 1M 10M 100M 4 6 8 10 12 14 16 18 FREQUENCY (Hz) FREQUENCY (Hz) SUPPLY VOLTAGE (±V) 1970 G10 1970 G11 1970 G12 1970fe For more information www.linear.com/LT1970 5 Document Outline Description Typical Application Absolute Maximum Ratings Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Package Description Related Parts
Typical perForMance characTerisTics Open-Loop Gain and Phase Supply Current vs Supply Voltage vs Frequency Phase Margin vs Supply Voltage
4.5 70 100 60 I + V AV = –1 4.0 60 90 58 RF = RG = 1k I – V TA = 25°C 3.5 50 80 PHASE MARGIN (DEG) 56 GAIN PHASE VOUT = VS/2 40 70 3.0 I 54 VCC 30 60 52 2.5 20 50 50 2.0 IVEE 10 40 48 1.5 0 30 46 SUPPLY CURRENT (mA) OPEN-LOOP GAIN (dB) PHASE MARGIN (DEG) 1.0 –10 20 44 0.5 TA = 25°C –20 10 42 VCC = V+ = –VEE = –V– 0 –30 0 40 2 4 6 8 10 12 14 16 18 20 100 1k 10k 100k 1M 10M 100M 0 4 8 12 16 20 24 28 32 36 SUPPLY VOLTAGE (±V) FREQUENCY (Hz) TOTAL SUPPLY VOLTAGE (V) 1970 G05 1870 G04 1970 G06
Gain Bandwidth vs Supply Voltage Gain vs Frequency Gain vs Frequency with C LOAD
5 10 10 AV = 100 AV = 1 VS = ±15V AV = 1 30nF 10nF 4 0 0 1nF VS = ±15V 3 –10 –10 VS = ±5V 0nF 2 –20 –20 VOLTAGE GAIN (dB) VOLTAGE GAIN (dB) GAIN BANDWIDTH (MHz) 1 –30 –30 0 –40 –40 0 4 8 12 16 20 24 28 32 36 10k 100k 1M 10M 10k 100k 1M 10M TOTAL SUPPLY VOLTAGE (V) FREQUENCY (Hz) FREQUENCY (Hz) 1970 G09 1970 G07 1970 G08
Output Impedance Disabled Output Impedance Slew Rate vs Supply Voltage
100 600k 1.8 VS = ±15V VS = ±15V 100k VENABLE = 0.8V 1.7 10 FALLING 1.6 AV = 100 10k RISING 1 1.5 A 1k 1.4 V = 10 0.1 AV = 1 1.3 100 SLEW RATE (V/µs) OUTPUT IMPEDANCE (Ω) OUTPUT IMPEDANCE (Ω) 1.2 0.01 10 AV = –1 1.1 RF = RG = 1k TA = 25°C 0.001 1 1.0 1k 10k 100k 1M 10M 100M 1k 10k 100k 1M 10M 100M 4 6 8 10 12 14 16 18 FREQUENCY (Hz) FREQUENCY (Hz) SUPPLY VOLTAGE (±V) 1970 G10 1970 G11 1970 G12 1970fe For more information www.linear.com/LT1970 5 Document Outline Description Typical Application Absolute Maximum Ratings Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Package Description Related Parts
