Datasheet AD8475 (Analog Devices) - 8
| Hersteller | Analog Devices |
| Beschreibung | Precision, Selectable Gain, Fully Differential Funnel Amplifier |
| Seiten / Seite | 24 / 8 — AD8475. Data Sheet. TYPICAL PERFORMANCE CHARACTERISTICS. 1000. … |
| Revision | D |
| Dateiformat / Größe | PDF / 555 Kb |
| Dokumentensprache | Englisch |
AD8475. Data Sheet. TYPICAL PERFORMANCE CHARACTERISTICS. 1000. REPRESENTATIVE SAMPLES. 800. S = +5V, VOCM = +2.5V. –4.97V, +7.75V
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AD8475 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25°C, VS = 5 V, gain = 0.4, RLOAD = 1 kΩ, RTO, unless otherwise specified.
1000 10 REPRESENTATIVE SAMPLES V 800 S = +5V, VOCM = +2.5V 8 –4.97V, +7.75V 0V, +7.75V +4.95V, +7.75V 600 6 E (V) 400 G = 0.8 G A 4 –2.97V, +3.25V 0V, +3.25V +2.95V, +3.25V T L 200 G = 0.4 V) 2 (µ 0 E VO D SO O 0 V V S = +3V, VOCM = +1.5V –200 -MO N –2 –400 MMO O –4 –600 C –2.97V, –3.75V 0V, –3.75V +2.95V, –3.75V –800 –6 –4.97V, –6.25V 0V, –6.25V +4.95V, –6.25V –1000 –8 –40 –20 0 20 40 60 80 100 120
006
–5.5 –4.5 –3.5 –2.5 –1.5 –0.5 0.5 1.5 2.5 3.5 4.5 5.5
008
TEMPERATURE (°C) OUTPUT VOLTAGE (V)
09432- 09432- Figure 5. System Offset vs. Temperature Figure 8. Input Common-Mode Voltage vs. Output Voltage, VS = +5 V and +3 V
5 150 REPRESENTATIVE SAMPLES VIN = ±5V REPRESENTATIVE SAMPLES 4 100 3 2 ) /V 50 V V) 1 µ V/ R ( (µ 0 0 R RRO MR –1 C N E AI –50 G –2 –3 –100 –4 –5 –150 –40 –20 0 20 40 60 80 100 120
005
–40 –20 0 20 40 60 80 100 120
100
TEMPERATURE (°C) TEMPERATURE (°C)
09432- 09432- Figure 6. CMRR vs. Temperature (G = 0.8) Figure 9. Gain Error vs. Temperature, VS = ±5 V
65 130 125 60 120 mA) ( 55 ) 115 s NT µ 110 50 E (V/ T CURRE A T 105 R 45 EW FALL 100 RCUI SL -CI 40 95 RT HO RISE 90 S 35 85 30 80 –40 –20 0 20 40 60 80 100 120
015
–40 –20 0 20 40 60 80 100 120
016
TEMPERATURE (°C) TEMPERATURE (°C)
09432- 09432- Figure 7. Slew Rate vs. Temperature Figure 10. Short-Circuit Current vs. Temperature Rev. D | Page 8 of 24 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAMS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION OVERVIEW CIRCUIT INFORMATION Output Common-Mode Voltage (VOCM) DC PRECISION INPUT VOLTAGE RANGE DRIVING THE AD8475 POWER SUPPLIES APPLICATIONS INFORMATION TYPICAL CONFIGURATION SINGLE-ENDED TO DIFFERENTIAL CONVERSION SETTING THE OUTPUT COMMON-MODE VOLTAGE HIGH PERFORMANCE ADC DRIVING AD8475 EVALUATION BOARD OUTLINE DIMENSIONS ORDERING GUIDE
TA = 25°C, VS = 5 V, gain = 0.4, RLOAD = 1 kΩ, RTO, unless otherwise specified.
1000 10 REPRESENTATIVE SAMPLES V 800 S = +5V, VOCM = +2.5V 8 –4.97V, +7.75V 0V, +7.75V +4.95V, +7.75V 600 6 E (V) 400 G = 0.8 G A 4 –2.97V, +3.25V 0V, +3.25V +2.95V, +3.25V T L 200 G = 0.4 V) 2 (µ 0 E VO D SO O 0 V V S = +3V, VOCM = +1.5V –200 -MO N –2 –400 MMO O –4 –600 C –2.97V, –3.75V 0V, –3.75V +2.95V, –3.75V –800 –6 –4.97V, –6.25V 0V, –6.25V +4.95V, –6.25V –1000 –8 –40 –20 0 20 40 60 80 100 120
006
–5.5 –4.5 –3.5 –2.5 –1.5 –0.5 0.5 1.5 2.5 3.5 4.5 5.5
008
TEMPERATURE (°C) OUTPUT VOLTAGE (V)
09432- 09432- Figure 5. System Offset vs. Temperature Figure 8. Input Common-Mode Voltage vs. Output Voltage, VS = +5 V and +3 V
5 150 REPRESENTATIVE SAMPLES VIN = ±5V REPRESENTATIVE SAMPLES 4 100 3 2 ) /V 50 V V) 1 µ V/ R ( (µ 0 0 R RRO MR –1 C N E AI –50 G –2 –3 –100 –4 –5 –150 –40 –20 0 20 40 60 80 100 120
005
–40 –20 0 20 40 60 80 100 120
100
TEMPERATURE (°C) TEMPERATURE (°C)
09432- 09432- Figure 6. CMRR vs. Temperature (G = 0.8) Figure 9. Gain Error vs. Temperature, VS = ±5 V
65 130 125 60 120 mA) ( 55 ) 115 s NT µ 110 50 E (V/ T CURRE A T 105 R 45 EW FALL 100 RCUI SL -CI 40 95 RT HO RISE 90 S 35 85 30 80 –40 –20 0 20 40 60 80 100 120
015
–40 –20 0 20 40 60 80 100 120
016
TEMPERATURE (°C) TEMPERATURE (°C)
09432- 09432- Figure 7. Slew Rate vs. Temperature Figure 10. Short-Circuit Current vs. Temperature Rev. D | Page 8 of 24 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAMS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION OVERVIEW CIRCUIT INFORMATION Output Common-Mode Voltage (VOCM) DC PRECISION INPUT VOLTAGE RANGE DRIVING THE AD8475 POWER SUPPLIES APPLICATIONS INFORMATION TYPICAL CONFIGURATION SINGLE-ENDED TO DIFFERENTIAL CONVERSION SETTING THE OUTPUT COMMON-MODE VOLTAGE HIGH PERFORMANCE ADC DRIVING AD8475 EVALUATION BOARD OUTLINE DIMENSIONS ORDERING GUIDE