AD623-EVAL Analog Devices Inc, AD623-EVAL Datasheet
AD623-EVAL
Specifications of AD623-EVAL
Related parts for AD623-EVAL
AD623-EVAL Summary of contents
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... CMRR that increases with increasing gain. Line noise, as well as line harmonics, are rejected because the CMRR remains constant up to 200 Hz. The AD623 has a wide input common- mode range and can amplify signals that have a common-mode voltage 150 mV below ground. Although the design of the AD623 ...
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... AD623 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Connection Diagram ....................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Single Supply ................................................................................. 3 Dual Supplies ................................................................................ 4 Both Dual and Single Supplies .................................................... 6 Absolute Maximum Ratings ............................................................ 7 ESD Caution .................................................................................. 7 Typical Performance Characteristics ............................................. 8 Theory of Operation ...................................................................... 15 REVISION HISTORY 7/08—Rev Rev. D Updated Format .................................................................. Universal Changes to Features Section and General Description Section . 1 Changes to Table 3 ...
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... AD623 Unit % % % % ppm ppm/°C ppm/°C μV μV μV/°C μV μV μV/° pA/° pA/°C ...
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... S 0.5 (+V ) − 0.01 S 0.15 800 800 100 100 0.3 0 AD623ARM AD623B Typ Max Min Typ 1000 1 0.03 0.10 0.03 0.10 0.35 0.10 0.10 0.35 0.10 0.10 0.35 0.10 Max Unit GΩ||pF GΩ||pF (+V ) − ...
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... 0.5 0 (+V ) − (− 0.15 0.05 AD623 Max Unit ppm 10 ppm/°C ppm/°C 100 μV 160 μV 1 μV/°C 500 μV 1100 μV 10 μV/° 27.5 nA pA/° 2.5 nA pA/° ...
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... Rev Page AD623ARM AD623B Typ Max Min Typ 800 800 100 100 0.3 0 AD623ARM AD623B Min Typ Max Min Typ 3.0 3.0 1.5 1.5 100 100 1.5 1.5 100 ± 100 ± 20% 20 −V +V −V ...
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... Exposure to absolute ±6 V maximum rating conditions for extended periods may affect Indefinite device reliability. −65°C to +125°C −40°C to +85°C 300°C ESD CAUTION Rev Page AD623 ...
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... AD623 TYPICAL PERFORMANCE CHARACTERISTICS At 25° ±5 V, and kΩ, unless otherwise noted 300 280 260 240 220 200 180 160 140 120 100 –100 –80 –60 –40 – INPUT OFFSET VOLTAGE (µV) Figure 3. Typical Distribution of Input Offset Voltage; Package Option N-8, R-8 ...
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... Figure 13. Current Noise Spectral Density vs. Frequency 20.0 19.5 19.0 18.5 18.0 17.5 17.0 16.5 16.0 – Rev Page –40 – 100 120 TEMPERATURE (°C) Figure 12. I vs. Temperature BIAS 10 100 FREQUENCY (Hz) –3 –2 – CMV (V) Figure 14. I vs. CMV ±2.5 V BIAS S AD623 140 ...
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... AD623 CH1 10mV A 1s Figure 15. 0 Current Noise (0.71 pA/DIV) 1µV/DIV Figure 16. 0 RTI Voltage Noise (1 DIV = 1 μV p-p) 120 110 100 100 1k FREQUENCY (Hz) Figure 17. CMR vs. Frequency 100mV VERT 1s ×1000 ×100 ×10 ×1 10k 100k , 2.5 V Figure 20. Maximum Output Voltage vs. Common-Mode Input ...
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... G = 1000 100 100 1k FREQUENCY (Hz) Figure 24. Positive PSRR vs. Frequency, ±5 V 140 120 G = 1000 100 100 1k FREQUENCY (Hz) Figure 25. Positive PSRR vs. Frequency 140 120 100 100 1k FREQUENCY (Hz) Figure 26. Negative PSRR vs. Frequency, ±5 V AD623 G = 100 10k 100k 100 10k 100k , 1000 G = 100 10k 100k S ...
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... AD623 ± ±2. FREQUENCY (kHz) Figure 27. Large Signal Response, G ≤ 100 GAIN (V/V) Figure 28. Settling Time to 0.01% vs. Gain, for Step at Output 100 pF ± 500µV 1V Figure 29. Large Signal Pulse Response and Settling Time −1 (0.250 mV = 0.01%), C 80 100 100 1k 20µs ...
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... Figure 35. Small Signal Pulse Response 100, R 2µ kΩ 100 pF Figure 36. Small Signal Pulse Response 1000 5µ kΩ 100 50µ kΩ 100 Rev Page 20mV 500µ kΩ 200µV 1V Figure 37. Gain Nonlinearity −1 (50 ppm/DIV) 20µV 1V Figure 38. Gain Nonlinearity −10 (6 ppm/DIV) AD623 = 100 pF L ...
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... AD623 50µV Figure 39. Gain Nonlinearity −100, 15 ppm/DIV V+ 1V (V+) –0.5 (V+) –1.5 (V+) –2.5 (V–) +0.5 V– Rev Page 0.5 1.0 1.5 OUTPUT CURRENT (mA) Figure 40. Output Voltage Swing vs. Output Current 2.0 ...
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... Because the amplifiers can swing to either supply rail, as well as have their common-mode range extended to below the negative supply rail, the range over which the AD623 can operate is further enhanced (see Figure 20 and Figure 21). The output voltage at Pin 6 is measured with respect to the potential at Pin 5. The impedance of the reference pin is 100 kΩ ...
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... GAIN SELECTION The gain of the AD623 is resistor programmed by R precisely, by whatever impedance appears between Pin 1 and Pin 8. The AD623 is designed to offer accurate gains using 0. tolerance resistors. Table 5 shows the required values of R for the various gains. Note that for the R ...
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... INPUT AND OUTPUT OFFSET VOLTAGE The low errors of the AD623 are attributed to two sources, input and output errors. The output error is divided by the programmed gain when referred to the input. In practice, the input errors dominate at high gains and the output errors dominate at low gains. The total V ...
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... Figure 46. Common-Mode Shield Driver GROUNDING Because the AD623 output voltage is developed with respect to the potential on the reference terminal, many grounding problems can be solved by simply tying the REF pin to the appropriate local Figure 47. Optimal Grounding Practice for a Bipolar Supply Environment with Separate Analog and Digital Supplies ground ...
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... TO POWER SUPPLY AD623, the voltage on the REF pin must be raised to at least GROUND this example, the 2 V reference voltage from the ADC is used to bias the output voltage of the AD623 ± This corresponds to the input range of the ADC. Rev Page 0.1µF 0.1µ ...
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... Therefore, when one of the inputs is grounded fixed voltage, the common-mode voltage changes as the differential voltage changes. Take the case of the thermocouple amplifier in Figure 54. The inverting input on the AD623 is grounded; therefore, when the input voltage is −10 mV, the voltage on the noninverting input is −10 mV. For the purpose of the signal swing ...
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... Rev Page AD623 Resulting Gain Output Swing (V) 116 ±1.2 11.7 ±1.1 488 ±4.8 48.61 ±4.8 4.83 ±4.8 238 ±2.3 24.1 ±2.4 2.4 ±2.4 141 ± ...
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... AD623 OUTLINE DIMENSIONS 0.210 (5.33) MAX 0.150 (3.81) 0.130 (3.30) 0.115 (2.92) 0.022 (0.56) 0.018 (0.46) 0.014 (0.36) CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. CORNER LEADS MAY BE CONFIGURED AS WHOLE OR HALF LEADS. ...
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... AD623ARMZ-REEL −40°C to +85°C 1 AD623ARMZ-REEL7 −40°C to +85°C AD623BN −40°C to +85°C 1 AD623BNZ −40°C to +85°C AD623BR −40°C to +85°C AD623BR-REEL −40°C to +85°C AD623BR-REEL7 −40°C to +85°C AD623BRZ 1 −40°C to +85°C 1 AD623BRZ-R7 − ...
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... AD623 NOTES ©1997–2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D00788-0-7/08(D) Rev Page ...