AD8223 Analog Devices, AD8223 Datasheet
AD8223
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AD8223 Summary of contents
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... With no external resistor, the AD8223 is configured for and with an external resistor, the AD8223 can be programmed for gains up to 1000. The AD8223 holds errors to a minimum by providing superior ac CMRR that increases with increasing gain ...
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... AD8223 TABLE OF CONTENTS Features .............................................................................................. 1 Connection Diagram ....................................................................... 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Single Supply ................................................................................. 3 Dual Supply ................................................................................... 5 Absolute Maximum Ratings............................................................ 7 ESD Caution.................................................................................. 7 Typical Performance Characteristics ............................................. 8 Theory of Operation ...................................................................... 13 Amplifier Architecture .............................................................. 13 Gain Selection ............................................................................. 13 REVISION HISTORY Preliminary Technical Data Input Voltage Range................................................................... 13 Reference Terminal .................................................................... 14 Input Protection ......................................................................... 14 RF Interference ...
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... AD8223 Unit nV/√Hz nV/√Hz μV p-p μV p-p fA/√Hz pA p-p μV μV/°C μV μV/° pA/° pA/°C kHz kHz kHz kHz V/μs ...
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... V to 4.5 V OUT 2||2 2||2 (−V ) − kΩ to ground +0. 100 kΩ to +0. +50 IN REF − ± 0.0002 +3.0 -40 Rev. PrA | Page Preliminary Technical Data AD8223B Max Min Typ Max 1000 5 1000 0.15 0.03 0.1 1 0.10 0.5 1 0.10 0.5 1 0.10 0 2||2 2||2 (+V ) − (−V ) − (+V ) − ...
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... AD8223 Unit nV/√Hz nV/√Hz μV p-p μV p-p fA/√Hz pA p-p μV μV/°C μV μV/° pA/° pA/°C kHz kHz kHz kHz V/μs μ ...
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... kΩ to ground (− 0 100 kΩ to ground (− 0 +50 IN REF − ± 0.0002 ±2.5 −40 Rev. PrA | Page Preliminary Technical Data AD8223B Max Min Typ Max 1000 5 1000 0.15 0.03 0.1 1 0.10 0.5 1 0.10 0.5 1 0.10 0 2||2 2||2 (+V ) − (−V ) − ...
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... V Specification is for device in free air. 650 mW ±6 V Table 4. Thermal Resistance Indefinite Package Type −65°C to +125°C 8-Lead SOIC −40°C to +85°C 8-Lead MSOP +300°C ESD CAUTION Rev. PrA | Page AD8223 θ Unit JA 155 °C/W 200 °C/W ...
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... AD8223 TYPICAL PERFORMANCE CHARACTERISTICS T = 25° ± kΩ, unless otherwise noted –200 –150 –100 –50 0 INPUT OFFSET VOLTAGE (µV) Figure 2. Typical Distribution of Input Offset Voltage INPUT BIAS CURRENT (nA) Figure 3 ...
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... G = 1000 110 100 100 100 1k FREQUENCY (Hz) Figure 12. CMRR vs. Frequency, ±12 V 120 G = 1000 110 100 100 100 1k FREQUENCY (Hz) Figure 13. CMRR vs. Frequency AD8223 1s/DIV 10k 100k S 10k 100k ...
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... AD8223 1000 100 –10 –20 –30 100 1k 10k FREQUENCY (Hz) Figure 14. Gain vs. Frequency ± ±2. –1 –2 –3 –4 –5 –6 –6 –5 –4 –3 –2 – OUTPUT (V) Figure 15. Common-Mode Input vs. Maximum Output Voltage, ...
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... V S Rev. PrA | Page 5V/DIV 0.1%/DIV Figure 23. Large Signal Response 5V/DIV 0.1%/DIV Figure 24. Large Signal Pulse Response 100, C 5V/DIV 0.1%/DIV Figure 25. Large Signal Pulse Response 1000, C AD8223 100µs/DIV 100µs/DIV = 100 pF L 100µs/DIV = 100 pF L ...
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... AD8223 100 2 20mV/DIV Figure 26. Small Signal Pulse Response 10, 100 20mV/DIV Figure 27. Small Signal Pulse Response 1000 –1 – –V S 0.01 10µs/DIV = 10 kΩ L 100µs/DIV = 25 kΩ 100 Rev. PrA | Page Preliminary Technical Data 0 ...
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... The AD8223 defaults when no gain resistor is used. The tolerance and gain drift of the R to the specifications of the AD8223 to determine the total gain accuracy of the system. When the gain resistor is not used, gain error and gain drift are kept to a minimum. ...
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... For example, a voltage source can be tied to the REF pin to level- shift the output so that the AD8223 can drive a single-supply ADC. The REF pin is protected with ESD diodes and should not exceed either +V or − ...
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... S THERMOCOUPLE + AD8223 C REF –V S CAPACITIVELY COUPLED Figure 33. Creating an I Rev. PrA | Page AD8223 CORRECT +V S AD8223 REF –V S TRANSFORMER +V S AD8223 REF 10MΩ –V S THERMOCOUPLE + HIGH-PASS 2πRC AD8223 C REF R –V S CAPACITIVELY COUPLED Path BIAS ...
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... Figure 34. Basic Connections OUTPUT BUFFERING The AD8223 is designed to drive loads of 10 kΩ or greater. If the load is less than this value, the AD8223 output should be buffered with a precision single-supply op amp such as the OP113. This op amp can swing from its output while driving a load as small as 600 Ω ...
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... Over a temperature range from −200°C to +200°C, the J-type thermocouple delivers a voltage ranging from −7.890 mV to 10.777 mV. A programmed gain on the AD8223 of 100 (R = 845) and a voltage on the AD8223 REF pin results G in the AD8223 output voltage ranging from 1.110 V to 3.077 V relative to ground. ...
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... AD8223 OUTLINE DIMENSIONS 0.25 (0.0098) 0.10 (0.0040) COPLANARITY 3.20 3.00 2.80 5. 3.20 4.90 3.00 4.65 2. PIN 1 0.65 BSC 0.95 0.85 1.10 MAX 0.75 0.15 0.38 0.23 0.00 0.22 0.08 COPLANARITY SEATING 0.10 PLANE COMPLIANT TO JEDEC STANDARDS MO-187-AA Figure 41. 8-Lead Mini Small Outline Package [MSOP] (RM-8) Dimensions shown in millimeters 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2441) 4.00 (0.1574) 1 5.80 (0.2284) 3.80 (0.1497) 4 1.27 (0.0500) BSC 1.75 (0.0688) 1.35 (0.0532) 8° 0° ...
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... AD8223BR −40°C to +85°C AD8223BR-RL −40°C to +85°C AD8223BR-R7 −40°C to +85°C AD8223BRM −40°C to +85°C AD8223BRM-RL −40°C to +85°C AD8223BRM-R7 −40°C to +85°C AD8223BRMZ 1 −40°C to +85°C 1 AD8223BRMZ-RL −40°C to +85°C 1 AD8223BRMZ-R7 − ...
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... AD8223 NOTES ©2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. PR06925-0-1/08(PrA) Preliminary Technical Data Rev. PrA | Page ...