Datasheet LT1994 (Analog Devices) - 7
| Hersteller | Analog Devices |
| Beschreibung | Low Noise, Low Distortion Fully Differential Input/Output Amplifier/Driver |
| Seiten / Seite | 20 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS. Input Common Mode Rejection vs. … |
| Dateiformat / Größe | PDF / 232 Kb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS. Input Common Mode Rejection vs. Common Mode Output Power. Frequency
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LT1994
TYPICAL PERFORMANCE CHARACTERISTICS Input Common Mode Rejection vs Common Mode Output Power Frequency Supply Rejection vs Frequency Input Noise vs Frequency
100 60 100 100 $V $V INPUT CURRENT NOISE DENSITY (pA/√Hz) ICM S VS = 3V VS = 3V $V V– SUPPLY $V T OSDIFF OSOCM A = 25°C 90 50 80 VS = p5V 40 70 V+ SUPPLY 30 10 10 60 INPUT CMRR (dB) 20 en 50 COMMON MODE PSRR (dB) 40 10 in VS = 3V 30 0 1 1 1k 10k 100k 1M 10M 100M 0.1 1 10 100 INPUT REFERRED VOLTAGE NOISE DENSITY (nV/√Hz) 10 100 1k 10k 100k 1M FREQUENCY (Hz) FREQUENCY (MHz) FREQUENCY (Hz) 1995 G10 1995 G11 1995 G12
Differential Distortion vs Input Differential Distortion vs Input Differential Distortion vs Amplitude (Single-Ended Input) Common Mode Level Frequency
–60 –40 –40 VS = 3V VS = 3V VS = 3V fIN = 1MHz VIN = 2VP-P (SINGLE ENDED) VIN = 2VP-P (SINGLE ENDED) R –50 –50 F = RI = 499Ω fIN = 1MHz f –70 IN = 1MHz RL = 800Ω RF = RI = 499Ω RF = RI = 499Ω (dB) VOCM = MID-SUPPLY (dB) –60 RL = 800Ω –60 RL = 800Ω VOCM = MID-SUPPLY VOCM = MID-SUPPLY –80 (dB) 2ND, V VICM = MID-SUPPLY ICM = 1.5V –70 –70 3RD –80 –80 –90 2ND, VCM = V– 2ND DISTORTION –90 2ND –90 3RD, V DISTORTION HD2, HD3 CM = V– –100 DISTORTION HD2, HD3 –100 –100 3RD, VICM = 1.5V 3RD –110 –110 –110 1 2 3 4 5 0 0.5 1.0 1.5 2.0 2.5 100k 1M 10M VIN (VP-P) INPUT COMMON MODE DC BIAS, IN– OR IN+ PINS (V) FREQUENCY (Hz) 1994 G13 1994 G14 1994 G15
Slew Rate vs Temperature 2V Step Response Settling
68 RF = RI = 499Ω SETTLE VOLTAGE ERROR (2mV/DIV) 66 VS = 3V +0.1% (0.5V/DIV)– ERROR (V/μs) V OUT OUT 64 – V+ VS = ±5V OUT SLEW RATE = V –0.1% 62 ERROR OUTV VS = 3V RF = RI = 499Ω 60–50 –25 0 25 50 75 100 25ns/DIV TEMPERATURE (°C) 1994 G17 1994 G16 1994fb 7
TYPICAL PERFORMANCE CHARACTERISTICS Input Common Mode Rejection vs Common Mode Output Power Frequency Supply Rejection vs Frequency Input Noise vs Frequency
100 60 100 100 $V $V INPUT CURRENT NOISE DENSITY (pA/√Hz) ICM S VS = 3V VS = 3V $V V– SUPPLY $V T OSDIFF OSOCM A = 25°C 90 50 80 VS = p5V 40 70 V+ SUPPLY 30 10 10 60 INPUT CMRR (dB) 20 en 50 COMMON MODE PSRR (dB) 40 10 in VS = 3V 30 0 1 1 1k 10k 100k 1M 10M 100M 0.1 1 10 100 INPUT REFERRED VOLTAGE NOISE DENSITY (nV/√Hz) 10 100 1k 10k 100k 1M FREQUENCY (Hz) FREQUENCY (MHz) FREQUENCY (Hz) 1995 G10 1995 G11 1995 G12
Differential Distortion vs Input Differential Distortion vs Input Differential Distortion vs Amplitude (Single-Ended Input) Common Mode Level Frequency
–60 –40 –40 VS = 3V VS = 3V VS = 3V fIN = 1MHz VIN = 2VP-P (SINGLE ENDED) VIN = 2VP-P (SINGLE ENDED) R –50 –50 F = RI = 499Ω fIN = 1MHz f –70 IN = 1MHz RL = 800Ω RF = RI = 499Ω RF = RI = 499Ω (dB) VOCM = MID-SUPPLY (dB) –60 RL = 800Ω –60 RL = 800Ω VOCM = MID-SUPPLY VOCM = MID-SUPPLY –80 (dB) 2ND, V VICM = MID-SUPPLY ICM = 1.5V –70 –70 3RD –80 –80 –90 2ND, VCM = V– 2ND DISTORTION –90 2ND –90 3RD, V DISTORTION HD2, HD3 CM = V– –100 DISTORTION HD2, HD3 –100 –100 3RD, VICM = 1.5V 3RD –110 –110 –110 1 2 3 4 5 0 0.5 1.0 1.5 2.0 2.5 100k 1M 10M VIN (VP-P) INPUT COMMON MODE DC BIAS, IN– OR IN+ PINS (V) FREQUENCY (Hz) 1994 G13 1994 G14 1994 G15
Slew Rate vs Temperature 2V Step Response Settling
68 RF = RI = 499Ω SETTLE VOLTAGE ERROR (2mV/DIV) 66 VS = 3V +0.1% (0.5V/DIV)– ERROR (V/μs) V OUT OUT 64 – V+ VS = ±5V OUT SLEW RATE = V –0.1% 62 ERROR OUTV VS = 3V RF = RI = 499Ω 60–50 –25 0 25 50 75 100 25ns/DIV TEMPERATURE (°C) 1994 G17 1994 G16 1994fb 7