Datasheet LT1994 (Analog Devices) - 7
| Manufacturer | Analog Devices |
| Description | Low Noise, Low Distortion Fully Differential Input/Output Amplifier/Driver |
| Pages / Page | 20 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS. Input Common Mode Rejection vs. … |
| File Format / Size | PDF / 232 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Input Common Mode Rejection vs. Common Mode Output Power. Frequency
Model Line for this Datasheet
Text Version of Document
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
