Datasheet LT1970A (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | 500mA Power Op Amp with Adjustable Precision Current Limit |
| Pages / Page | 24 / 5 — Typical perForMance characTerisTics. Open-Loop Gain and Phase. Supply … |
| File Format / Size | PDF / 385 Kb |
| Document Language | English |
Typical perForMance characTerisTics. Open-Loop Gain and Phase. Supply Current vs Supply Voltage. vs Frequency
Model Line for this Datasheet
Text Version of Document
LT1970A
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 + A V V = –1 4.0 60 90 58 RF = RG = 1k I – V TA = 25°C 3.5 50 80 56 PHASE MARGIN (DEG) GAIN PHASE VOUT = VS/2 40 70 54 3.0 IVCC 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) 1870A G04 1970A G05 1970A 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) 1970A G08 1970A G09 1970A G07
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 V = 10 1.4 0.1 AV = 1 100 1.3 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) 1970A G10 1970A G11 1970A G12 1970afc For more information www.linear.com/LT1970A 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram And Test Circuit Applications Information Package Description Applications Information 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 + A V V = –1 4.0 60 90 58 RF = RG = 1k I – V TA = 25°C 3.5 50 80 56 PHASE MARGIN (DEG) GAIN PHASE VOUT = VS/2 40 70 54 3.0 IVCC 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) 1870A G04 1970A G05 1970A 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) 1970A G08 1970A G09 1970A G07
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 V = 10 1.4 0.1 AV = 1 100 1.3 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) 1970A G10 1970A G11 1970A G12 1970afc For more information www.linear.com/LT1970A 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram And Test Circuit Applications Information Package Description Applications Information Related Parts
