Datasheet AD8610, AD8620 (Analog Devices) - 17
| Hersteller | Analog Devices |
| Beschreibung | Low Input Bias Current, Wide BW JFET Precision Dual Op Amp |
| Seiten / Seite | 24 / 17 — AD8610/AD8620. THD Readings vs. Common-Mode Voltage. Settling Time. 0.1. … |
| Revision | F |
| Dateiformat / Größe | PDF / 374 Kb |
| Dokumentensprache | Englisch |
AD8610/AD8620. THD Readings vs. Common-Mode Voltage. Settling Time. 0.1. VS = ±13V. VIN = 5V rms. 1.2k. BW = 80kHz. 1.0k. 0.01. ) %. 800
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AD8610/AD8620 THD Readings vs. Common-Mode Voltage Settling Time
Total harmonic distortion of the AD8610/AD8620 is well below The AD8610/AD8620 have a very fast settling time, even to a 0.0006% with any load down to 600 Ω. The AD8610 outperforms very tight error band, as can be seen from Figure 60. The AD8610/ the OPA627 for distortion, especially at frequencies above 20 kHz. AD8620 are configured in an inverting gain of +1 with 2 kΩ input and feedback resistors. The output is monitored with a 10×,
0.1
10 MΩ, 11.2 pF scope probe.
VS = ±13V VIN = 5V rms 1.2k BW = 80kHz 1.0k 0.01 ) % s) ( 800 (n N E OPA627 IM HD + T T G 600 N 0.001 LI TT AD8610 E S 400
58 0 0-
200
73 0 02
0.0001
06 0-
10 100 1k 10k 80k
73 02
FREQUENCY (Hz) 0 0.001 0.01 0.1 1 10
Figure 58. AD8610 vs. OPA627 THD + Noise @ VCM = 0 V
ERROR BAND (%) 0.1
Figure 60. AD8610/AD8620 Settling Time vs. Error Band
VS = ±13V RL = 600Ω 1.2k 1.0k ) % s) 800 2V rms n N ( 0.01 E ( IM HD + T T 4V rms G 600 IN L T T 6V rms SE 400
9
OPA627
05 0-
200
73 1 02
0.001
06
10 100 1k 10k 20k
0- 73
FREQUENCY (Hz)
02
0 0.001 0.01 0.1 1 10
Figure 59. THD + Noise vs. Frequency
ERROR BAND (%) Noise vs. Common-Mode Voltage
Figure 61. OPA627 Settling Time vs. Error Band The AD8610/AD8620 noise density varies only 10% over the input range, as shown in Table 5.
Table 5. Noise vs. Common-Mode Voltage VCM at f = 1 kHz (V) Noise Reading (nV/√Hz)
−10 7.21 −5 6.89 0 6.73 +5 6.41 +10 7.21 Rev. F | Page 17 of 24 Document Outline FEATURES APPLICATIONS PIN CONFIGURATIONS GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ELECTRICAL SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION FUNCTIONAL DESCRIPTION Power Consumption Driving Large Capacitive Loads Slew Rate (Unity Gain Inverting vs. Noninverting) Input Overvoltage Protection No Phase Reversal THD Readings vs. Common-Mode Voltage Noise vs. Common-Mode Voltage Settling Time Output Current Capability Operating with Supplies Greater than ±13 V Input Offset Voltage Adjustment Programmable Gain Amplifier (PGA) High Speed Instrumentation Amplifier High Speed Filters Second-Order, Low-Pass Filter High Speed, Low Noise Differential Driver OUTLINE DIMENSIONS ORDERING GUIDE
AD8610/AD8620 THD Readings vs. Common-Mode Voltage Settling Time
Total harmonic distortion of the AD8610/AD8620 is well below The AD8610/AD8620 have a very fast settling time, even to a 0.0006% with any load down to 600 Ω. The AD8610 outperforms very tight error band, as can be seen from Figure 60. The AD8610/ the OPA627 for distortion, especially at frequencies above 20 kHz. AD8620 are configured in an inverting gain of +1 with 2 kΩ input and feedback resistors. The output is monitored with a 10×,
0.1
10 MΩ, 11.2 pF scope probe.
VS = ±13V VIN = 5V rms 1.2k BW = 80kHz 1.0k 0.01 ) % s) ( 800 (n N E OPA627 IM HD + T T G 600 N 0.001 LI TT AD8610 E S 400
58 0 0-
200
73 0 02
0.0001
06 0-
10 100 1k 10k 80k
73 02
FREQUENCY (Hz) 0 0.001 0.01 0.1 1 10
Figure 58. AD8610 vs. OPA627 THD + Noise @ VCM = 0 V
ERROR BAND (%) 0.1
Figure 60. AD8610/AD8620 Settling Time vs. Error Band
VS = ±13V RL = 600Ω 1.2k 1.0k ) % s) 800 2V rms n N ( 0.01 E ( IM HD + T T 4V rms G 600 IN L T T 6V rms SE 400
9
OPA627
05 0-
200
73 1 02
0.001
06
10 100 1k 10k 20k
0- 73
FREQUENCY (Hz)
02
0 0.001 0.01 0.1 1 10
Figure 59. THD + Noise vs. Frequency
ERROR BAND (%) Noise vs. Common-Mode Voltage
Figure 61. OPA627 Settling Time vs. Error Band The AD8610/AD8620 noise density varies only 10% over the input range, as shown in Table 5.
Table 5. Noise vs. Common-Mode Voltage VCM at f = 1 kHz (V) Noise Reading (nV/√Hz)
−10 7.21 −5 6.89 0 6.73 +5 6.41 +10 7.21 Rev. F | Page 17 of 24 Document Outline FEATURES APPLICATIONS PIN CONFIGURATIONS GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ELECTRICAL SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION FUNCTIONAL DESCRIPTION Power Consumption Driving Large Capacitive Loads Slew Rate (Unity Gain Inverting vs. Noninverting) Input Overvoltage Protection No Phase Reversal THD Readings vs. Common-Mode Voltage Noise vs. Common-Mode Voltage Settling Time Output Current Capability Operating with Supplies Greater than ±13 V Input Offset Voltage Adjustment Programmable Gain Amplifier (PGA) High Speed Instrumentation Amplifier High Speed Filters Second-Order, Low-Pass Filter High Speed, Low Noise Differential Driver OUTLINE DIMENSIONS ORDERING GUIDE