Datasheet LT1678, LT1679 (Analog Devices) - 9
| Manufacturer | Analog Devices |
| Description | Dual/Quad Low Noise, Rail-to-Rail, Precision Op Amps |
| Pages / Page | 16 / 9 — TYPICAL PERFOR A CE CHARACTERISTICS. Common Mode Range vs. Common Mode … |
| File Format / Size | PDF / 300 Kb |
| Document Language | English |
TYPICAL PERFOR A CE CHARACTERISTICS. Common Mode Range vs. Common Mode Rejection Ratio. Temperature
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Text Version of Document
LT1678/LT1679
W U TYPICAL PERFOR A CE CHARACTERISTICS Common Mode Range vs Common Mode Rejection Ratio Temperature Supply Current vs Supply Voltage vs Frequency
5 500 4.0 160 VS = ±2.5V TO ±15V VS = ±15V 4 400 140 TA = 25°C 3.5 VCM = 0V 3 300 OFFSET VOLTAGE ( 120 2 200 25°C 3.0 100 1 –55°C 100 TA = 125°C –55 0 125°C °C 0 2.5 80 25°C –1 –100 TA = 25°C 60 µ VOS IS REFERRED TO V) 2.0 OFFSET VOLTAGE (mV) –2 –200 VCM = 0V T 40 A = –55°C –3 –300 1.5 125°C 20 –4 –400 SUPPLY CURRENT PER AMPLIFIER (mA) COMMON MODE REJECTION RATIO (dB) –5 –500 1.0 0 –1.0 V– 1.0 2.0 –0.8 –0.4 V– 0.4 0 ±5 ±10 ±15 ±20 10k 100k 1M 10M V – (V) V + (V) SUPPLY VOLTAGE (V) FREQUENCY (Hz) CM – VS CM – VS 16789 G14 16789 G15 16789 G09
Power Supply Rejection Ratio vs Frequency Voltage Gain vs Supply Voltage % Overshoot vs Capacitive Load
160 10 60 V V S = ±15V S = ±15V R 140 TA = 25°C L = 2k TO 10k V) RL = 10k 50 AV = 1 µ T 120 A = 25°C 40 R 100 L = 2k NEGATIVE SUPPLY 80 1 30 RISING EDGE 60 OVERSHOOT (%) 20 POSITIVE SUPPLY 40 FALLING EDGE TA = 25°C 10 20 OPEN LOOP VOLTAGE GAIN (V/ R POWER SUPPLY REJECTION RATIO (dB) L TO GND VCM = VO = VS/2 0 0.1 0 0.001 0.01 0.1 1 10 100 1000 0 10 20 30 10 100 1000 FREQUENCY (kHz) SUPPLY VOLTAGE (V) CAPACITIVE LOAD (pF) 16789 G16 16789 G18 16789 G17
Phase Margin, Gain Bandwidth Product and Slew Rate vs Large Signal Small Signal Temperature Transient Response Transient Response
GAIN BANDWIDTH PRODUCT, f 90 VS = ±15V 80 CL = 15pF PHASE MARGIN A 50mV 70 V = –1 R 10V F = RG = 1k 60 30 50 25 0V GAIN BANDWIDTH PRODUCT PHASE MARGIN (DEG) 40 20 8 15 s) O –10V µ = 100kHz (MHz) –50mV 10 +SR 6 –SR AVCL = –1 5µs/DIV AVCL = 1 0.5µs/DIV VS = ±15V VS = ±15V SLEW RATE (V/ C 4 L = 15pF 16789 G20 16789 G21 –55 –35 –15 5 25 45 65 85 105 125 TEMPERATURE (°C) 16789 G19 sn16789 16789fs 9
W U TYPICAL PERFOR A CE CHARACTERISTICS Common Mode Range vs Common Mode Rejection Ratio Temperature Supply Current vs Supply Voltage vs Frequency
5 500 4.0 160 VS = ±2.5V TO ±15V VS = ±15V 4 400 140 TA = 25°C 3.5 VCM = 0V 3 300 OFFSET VOLTAGE ( 120 2 200 25°C 3.0 100 1 –55°C 100 TA = 125°C –55 0 125°C °C 0 2.5 80 25°C –1 –100 TA = 25°C 60 µ VOS IS REFERRED TO V) 2.0 OFFSET VOLTAGE (mV) –2 –200 VCM = 0V T 40 A = –55°C –3 –300 1.5 125°C 20 –4 –400 SUPPLY CURRENT PER AMPLIFIER (mA) COMMON MODE REJECTION RATIO (dB) –5 –500 1.0 0 –1.0 V– 1.0 2.0 –0.8 –0.4 V– 0.4 0 ±5 ±10 ±15 ±20 10k 100k 1M 10M V – (V) V + (V) SUPPLY VOLTAGE (V) FREQUENCY (Hz) CM – VS CM – VS 16789 G14 16789 G15 16789 G09
Power Supply Rejection Ratio vs Frequency Voltage Gain vs Supply Voltage % Overshoot vs Capacitive Load
160 10 60 V V S = ±15V S = ±15V R 140 TA = 25°C L = 2k TO 10k V) RL = 10k 50 AV = 1 µ T 120 A = 25°C 40 R 100 L = 2k NEGATIVE SUPPLY 80 1 30 RISING EDGE 60 OVERSHOOT (%) 20 POSITIVE SUPPLY 40 FALLING EDGE TA = 25°C 10 20 OPEN LOOP VOLTAGE GAIN (V/ R POWER SUPPLY REJECTION RATIO (dB) L TO GND VCM = VO = VS/2 0 0.1 0 0.001 0.01 0.1 1 10 100 1000 0 10 20 30 10 100 1000 FREQUENCY (kHz) SUPPLY VOLTAGE (V) CAPACITIVE LOAD (pF) 16789 G16 16789 G18 16789 G17
Phase Margin, Gain Bandwidth Product and Slew Rate vs Large Signal Small Signal Temperature Transient Response Transient Response
GAIN BANDWIDTH PRODUCT, f 90 VS = ±15V 80 CL = 15pF PHASE MARGIN A 50mV 70 V = –1 R 10V F = RG = 1k 60 30 50 25 0V GAIN BANDWIDTH PRODUCT PHASE MARGIN (DEG) 40 20 8 15 s) O –10V µ = 100kHz (MHz) –50mV 10 +SR 6 –SR AVCL = –1 5µs/DIV AVCL = 1 0.5µs/DIV VS = ±15V VS = ±15V SLEW RATE (V/ C 4 L = 15pF 16789 G20 16789 G21 –55 –35 –15 5 25 45 65 85 105 125 TEMPERATURE (°C) 16789 G19 sn16789 16789fs 9
