Datasheet LT1251, LT1256 (Analog Devices) - 8
| 制造商 | Analog Devices |
| 描述 | 40MHz Video Fader and DC Gain Controlled Amplifier |
| 页数 / 页 | 24 / 8 — TYPICAL PERFORMANCE CHARACTERISTICS. Slew Rate vs Full-Scale. Power … |
| 文件格式/大小 | PDF / 396 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. Slew Rate vs Full-Scale. Power Supply Rejection Ratio. Reference Voltage
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LT1251/LT1256
W U TYPICAL PERFORMANCE CHARACTERISTICS Slew Rate vs Full-Scale Power Supply Rejection Ratio Reference Voltage Slew Rate vs Temperature vs Frequency
350 80 AV = 1 VS = ±5V VS = ±5V 350 300 A 70 V = 1 POSITIVE AV = 1 V NO LOAD RF = 1.5k S = ±15V 60 VC = VFS = 2.5V 250 NEGATIVE µs) µs) 300 50 200 VS = ±5V 40 150 250 30 SLEW RATE (V/ SLEW RATE (V/ 100 20 50 200 10 POWER SUPPLY REJECTION RATIO (dB) 0 0 0 0.5 1.0 1.5 2.0 2.5 –50 –25 0 25 50 75 100 125 1k 10k 100k 1M 10M FULL-SCALE REFERENCE VOLTAGE (V) TEMPERATURE (°C) FREQUENCY (Hz) 1251/56 G29 1251/56 G30 1251/56 G31
Settling Time to 10mV Settling Time to 1mV vs Output Step vs Output Step Output Impedance vs Frequency
10 10 100 VS = ±15V 8 VS = ±5V 8 RF = 1.5k NONINVERTING RF = 1.5k 6 6 V INVERTING ) C = VFS = 2.5V 4 Ω 10 4 INVERTING, 2 NONINVERTING 2 VS = ±15V 0 0 R 1 F = 1.5k –2 –2 A INVERTING V = 100 OUTPUT STEP (V) OUTPUT STEP (V) –4 –4 NONINVERTING A OUTPUT IMPEDANCE ( 0.1 V = 1, 10 –6 –6 NONINVERTING INVERTING –8 –8 –10 –10 0.01 0 25 50 75 100 125 150 0 50 100 150 200 10k 100k 1M 10M 100M SETTLING TIME (ns) SETTLING TIME (ns) FREQUENCY (Hz) 1251/56 G33 1251/56 G34 1251/56 G32
Differential Gain vs Differential Phase vs LT1251 Controlled Gain Controlled Gain Switching Transient (Glitch)
2 1.0 50mV
VOUT
0 – 50mV 2.5 1 0.5
VC
DIFFERENTIAL GAIN (%) 0 DIFFERENTIAL PHASE (DEG) VFS = 2.5V RF1 = RF2 = 1.5k 0 0 VS = ±5V 1251/56 G37 50 60 70 80 90 100 50 60 70 80 90 100 CONTROLLED GAIN, VC /VFS (%) CONTROLLED GAIN, VC /VFS (%) 1251/56 G35 1251/56 G36 8
W U TYPICAL PERFORMANCE CHARACTERISTICS Slew Rate vs Full-Scale Power Supply Rejection Ratio Reference Voltage Slew Rate vs Temperature vs Frequency
350 80 AV = 1 VS = ±5V VS = ±5V 350 300 A 70 V = 1 POSITIVE AV = 1 V NO LOAD RF = 1.5k S = ±15V 60 VC = VFS = 2.5V 250 NEGATIVE µs) µs) 300 50 200 VS = ±5V 40 150 250 30 SLEW RATE (V/ SLEW RATE (V/ 100 20 50 200 10 POWER SUPPLY REJECTION RATIO (dB) 0 0 0 0.5 1.0 1.5 2.0 2.5 –50 –25 0 25 50 75 100 125 1k 10k 100k 1M 10M FULL-SCALE REFERENCE VOLTAGE (V) TEMPERATURE (°C) FREQUENCY (Hz) 1251/56 G29 1251/56 G30 1251/56 G31
Settling Time to 10mV Settling Time to 1mV vs Output Step vs Output Step Output Impedance vs Frequency
10 10 100 VS = ±15V 8 VS = ±5V 8 RF = 1.5k NONINVERTING RF = 1.5k 6 6 V INVERTING ) C = VFS = 2.5V 4 Ω 10 4 INVERTING, 2 NONINVERTING 2 VS = ±15V 0 0 R 1 F = 1.5k –2 –2 A INVERTING V = 100 OUTPUT STEP (V) OUTPUT STEP (V) –4 –4 NONINVERTING A OUTPUT IMPEDANCE ( 0.1 V = 1, 10 –6 –6 NONINVERTING INVERTING –8 –8 –10 –10 0.01 0 25 50 75 100 125 150 0 50 100 150 200 10k 100k 1M 10M 100M SETTLING TIME (ns) SETTLING TIME (ns) FREQUENCY (Hz) 1251/56 G33 1251/56 G34 1251/56 G32
Differential Gain vs Differential Phase vs LT1251 Controlled Gain Controlled Gain Switching Transient (Glitch)
2 1.0 50mV
VOUT
0 – 50mV 2.5 1 0.5
VC
DIFFERENTIAL GAIN (%) 0 DIFFERENTIAL PHASE (DEG) VFS = 2.5V RF1 = RF2 = 1.5k 0 0 VS = ±5V 1251/56 G37 50 60 70 80 90 100 50 60 70 80 90 100 CONTROLLED GAIN, VC /VFS (%) CONTROLLED GAIN, VC /VFS (%) 1251/56 G35 1251/56 G36 8