Datasheet LT1678, LT1679 (Analog Devices) - 10
| Manufacturer | Analog Devices |
| Description | Dual/Quad Low Noise, Rail-to-Rail, Precision Op Amps |
| Pages / Page | 16 / 10 — TYPICAL PERFOR A CE CHARACTERISTICS. Settling Time vs Output. Step … |
| File Format / Size | PDF / 300 Kb |
| Document Language | English |
TYPICAL PERFOR A CE CHARACTERISTICS. Settling Time vs Output. Step (Inverting). Step (Noninverting)
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LT1678/LT1679
W U TYPICAL PERFOR A CE CHARACTERISTICS Settling Time vs Output Settling Time vs Output Step (Inverting) Step (Noninverting) Gain, Phase Shift vs Frequency
6 6 50 100 5k 2k V V V S = ±15V S = ±15V S = ±15V A 5k A V = –1 V = 1 PHASE VCM = 0V 5 VIN – T 5 – T 40 C 80 A = 25°C A = 25°C L = 10pF VOUT 2k VOUT T + + A = –55°C VIN TA = 25°C PHASE SHIFT (DEG) s) s) RL = 1k µ 4 µ 4 30 T 60 A = 125°C 0.01% OF 0.01% OF 0.01% OF FULL SCALE 0.01% OF FULL SCALE 3 3 20 40 FULL SCALE FULL SCALE TA = 125°C 2 2 10 20 SETTLING TIME ( 0.1% OF SETTLING TIME ( VOLTAGE GAIN (dB) GAIN 0.1% OF FULL SCALE 0.1% OF T 0.1% OF A = 25°C FULL SCALE 1 1 FULL SCALE FULL SCALE 0 0 TA = –55°C 0 0 –10 –20 –10 –8 –6 –4 –2 0 2 4 6 8 10 –10 –8 –6 –4 –2 0 2 4 6 8 10 0.1 1 10 100 OUTPUT STEP (V) OUTPUT STEP (V) FREQUENCY (MHz) 16789 G22 16789 G23 16789 G24
Output Voltage Swing vs Gain, Phase Shift vs Frequency Gain, Phase Shift vs Frequency Load Current
50 100 50 100 +VS 0 VS = ±15V VS = ±15V VS = ±15V TA = –55°C V V –0.1 CM = 14.7V CM = –14V 40 C 80 40 C 80 L = 10pF L = 10pF –0.2 TA = 125°C T PHASE SHIFT (DEG) PHASE T A = –55°C PHASE SHIFT (DEG) –0.3 A = 25°C 30 T 60 30 60 A = 25°C 0.8 PHASE T 0.7 A = 125°C T T 20 40 A = 125°C 20 A = –55°C 40 0.6 T T A = 125°C A = –55°C 0.5 T 10 20 A = 25°C 10 20 VOLTAGE GAIN (dB) T 0.4 A = 125°C VOLTAGE GAIN (dB) GAIN T T A = 25°C A = 25°C 0.3 GAIN 0 OUTPUT VOLTAGE SWING (V) T 0 0 0 A = 25°C 0.2 TA = –55°C T 0.1 A = –55°C –10 –20 –10 –20 –VS 0 0.1 1 10 100 0.1 1 10 100 –10 –8 –6 –4 –2 0 2 4 6 8 10 FREQUENCY (MHz) FREQUENCY (MHz) OUTPUT CURRENT (mA) 16789 G25 16789 G26 16789 G27
Total Harmonic Distortion and Total Harmonic Distortion and Closed-Loop Output Noise vs Frequency for Noise vs Frequency for Impedance vs Frequency Noninverting Gain Noninverting Gain
100 0.1 0.1 V Z Z S = ±15V L = 2k/15pF L = 2k/15pF VS = ±15V VS = ±15V VO = 20VP-P VO = 20VP-P ) 10 AV = 1, 10, 100 AV = –1, –10, –100 Ω MEASUREMENT BANDWIDTH MEASUREMENT BANDWIDTH 0.01 = 10Hz TO 80kHz 0.01 = 10Hz TO 80kHz 1 A A AV = –100 V = 100 V = 100 0.1 AV = 1 0.001 0.001 A A V = 10 V = –10 OUTPUT IMPEDANCE ( 0.01 A A V = –1 V = 1 TOTAL HARMONIC DISTORTION + NOISE (%) TOTAL HARMONIC DISTORTION + NOISE (%) 0.001 0.0001 0.0001 10 100 1k 10k 100k 1M 20 100 1k 10k 50k 20 100 1k 10k 50k FREQUENCY (Hz) FREQUENCY (Hz) FREQUENCY (Hz) 16789 G29 16789 G28 16789 G30 sn16789 16789fs 10
W U TYPICAL PERFOR A CE CHARACTERISTICS Settling Time vs Output Settling Time vs Output Step (Inverting) Step (Noninverting) Gain, Phase Shift vs Frequency
6 6 50 100 5k 2k V V V S = ±15V S = ±15V S = ±15V A 5k A V = –1 V = 1 PHASE VCM = 0V 5 VIN – T 5 – T 40 C 80 A = 25°C A = 25°C L = 10pF VOUT 2k VOUT T + + A = –55°C VIN TA = 25°C PHASE SHIFT (DEG) s) s) RL = 1k µ 4 µ 4 30 T 60 A = 125°C 0.01% OF 0.01% OF 0.01% OF FULL SCALE 0.01% OF FULL SCALE 3 3 20 40 FULL SCALE FULL SCALE TA = 125°C 2 2 10 20 SETTLING TIME ( 0.1% OF SETTLING TIME ( VOLTAGE GAIN (dB) GAIN 0.1% OF FULL SCALE 0.1% OF T 0.1% OF A = 25°C FULL SCALE 1 1 FULL SCALE FULL SCALE 0 0 TA = –55°C 0 0 –10 –20 –10 –8 –6 –4 –2 0 2 4 6 8 10 –10 –8 –6 –4 –2 0 2 4 6 8 10 0.1 1 10 100 OUTPUT STEP (V) OUTPUT STEP (V) FREQUENCY (MHz) 16789 G22 16789 G23 16789 G24
Output Voltage Swing vs Gain, Phase Shift vs Frequency Gain, Phase Shift vs Frequency Load Current
50 100 50 100 +VS 0 VS = ±15V VS = ±15V VS = ±15V TA = –55°C V V –0.1 CM = 14.7V CM = –14V 40 C 80 40 C 80 L = 10pF L = 10pF –0.2 TA = 125°C T PHASE SHIFT (DEG) PHASE T A = –55°C PHASE SHIFT (DEG) –0.3 A = 25°C 30 T 60 30 60 A = 25°C 0.8 PHASE T 0.7 A = 125°C T T 20 40 A = 125°C 20 A = –55°C 40 0.6 T T A = 125°C A = –55°C 0.5 T 10 20 A = 25°C 10 20 VOLTAGE GAIN (dB) T 0.4 A = 125°C VOLTAGE GAIN (dB) GAIN T T A = 25°C A = 25°C 0.3 GAIN 0 OUTPUT VOLTAGE SWING (V) T 0 0 0 A = 25°C 0.2 TA = –55°C T 0.1 A = –55°C –10 –20 –10 –20 –VS 0 0.1 1 10 100 0.1 1 10 100 –10 –8 –6 –4 –2 0 2 4 6 8 10 FREQUENCY (MHz) FREQUENCY (MHz) OUTPUT CURRENT (mA) 16789 G25 16789 G26 16789 G27
Total Harmonic Distortion and Total Harmonic Distortion and Closed-Loop Output Noise vs Frequency for Noise vs Frequency for Impedance vs Frequency Noninverting Gain Noninverting Gain
100 0.1 0.1 V Z Z S = ±15V L = 2k/15pF L = 2k/15pF VS = ±15V VS = ±15V VO = 20VP-P VO = 20VP-P ) 10 AV = 1, 10, 100 AV = –1, –10, –100 Ω MEASUREMENT BANDWIDTH MEASUREMENT BANDWIDTH 0.01 = 10Hz TO 80kHz 0.01 = 10Hz TO 80kHz 1 A A AV = –100 V = 100 V = 100 0.1 AV = 1 0.001 0.001 A A V = 10 V = –10 OUTPUT IMPEDANCE ( 0.01 A A V = –1 V = 1 TOTAL HARMONIC DISTORTION + NOISE (%) TOTAL HARMONIC DISTORTION + NOISE (%) 0.001 0.0001 0.0001 10 100 1k 10k 100k 1M 20 100 1k 10k 50k 20 100 1k 10k 50k FREQUENCY (Hz) FREQUENCY (Hz) FREQUENCY (Hz) 16789 G29 16789 G28 16789 G30 sn16789 16789fs 10
