AD8223ARM Analog Devices Inc, AD8223ARM Datasheet
AD8223ARM
Specifications of AD8223ARM
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AD8223ARM Summary of contents
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FEATURES Gain set with 1 resistor Gain = 5 to 1000 Inputs Voltage range to 150 mV below negative rail 25 nA maximum input bias current 30 nV/√Hz, RTI noise @ 1 kHz Power supplies Dual supply: ± ...
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AD8223 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Connection Diagram ....................................................................... 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Single Supply ................................................................................. 3 Dual Supply ................................................................................... 5 Absolute Maximum Ratings ............................................................ 7 Thermal Resistance ...
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SPECIFICATIONS SINGLE SUPPLY T = 25°C, − and Table 2 Parameter Conditions COMMON-MODE REJECTION RATIO with 1 kΩ Source ...
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AD8223 Parameter Conditions Settling Time to 0.01% Step size = 3 100 G = 1000 GAIN (80 kΩ/R Gain Range 1 Gain Error V OUT G = ...
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DUAL SUPPLY T = 25°C, −V = − +12 V, and Table 3. Parameter Conditions COMMON-MODE REJECTION RATIO with 1 kΩ Source V CM Imbalance ...
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AD8223 Parameter Conditions GAIN (80 kΩ/R Gain Range 2 Gain Error V OUT 100 G = 1000 Nonlinearity V OUT 1000 Gain vs. ...
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ABSOLUTE MAXIMUM RATINGS Table 4. Parameter Supply Voltage Internal Power Dissipation Differential Input Voltage Output Short-Circuit Duration Storage Temperature Range (R, RM) Operating Temperature Range Lead Temperature (Soldering, 10 sec) ESD (Human Body Model) ESD (Charge Device Model) ESD (Machine ...
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AD8223 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 6. Pin Function Descriptions Pin No. Mnemonic Descriptions 1 −R Gain Resistor Terminal −IN Negative Input. 3 +IN Positive Input. 4 −V Negative Supply REF Reference. Connect to a ...
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TYPICAL PERFORMANCE CHARACTERISTICS T = 25° ± kΩ, unless otherwise noted 700 600 500 400 300 200 100 0 –13.8 –13.5 –13.2 –12.9 INPUT BIAS CURRENT (nA) Figure 3. Typical Distribution ...
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AD8223 18 16 ±V = ±5V S ±V = ±2. ±V = ±12V –12 –10 –8 –6 –4 –2 0 CMV (V) Figure 9. I vs. CMV BIAS 500fA/DIV Figure ...
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G = 1000 100 –10 –20 –30 100 1k 10k 100k FREQUENCY (Hz) Figure 15. Gain vs. Frequency ...
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AD8223 –5 –10 –15 –15 –10 –5 0 MAXIMUM OUTPUT VOLTAGE (V) Figure 21. Common-Mode Input vs. Maximum Output Voltage 100, ±V = ± 140 120 100 ...
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Figure 27. Large Signal Pulse Response 1000 100 2 20mV/DIV Figure 28. Small Signal Pulse Response 10, 100 100µs/DIV 20mV/DIV = 100 ...
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AD8223 THEORY OF OPERATION AMPLIFIER ARCHITECTURE The AD8223 is an instrumentation amplifier based on a classic 3-op amp approach, modified to ensure operation even at common-mode voltages at the negative supply rail. The architecture allows lower voltage offsets, better CMRR, ...
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REFERENCE TERMINAL The output voltage of the AD8223 is developed with respect to the potential on the reference terminal. This is useful when the output signal needs to be offset to a precise midsupply level. For example, a voltage source ...
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AD8223 GROUND RETURNS FOR INPUT BIAS CURRENTS Input bias currents are those dc currents that must flow to bias the input transistors of an amplifier. These are usually transistor base currents. When amplifying floating input sources such as transformers or ...
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APPLICATIONS INFORMATION +V S +2V TO +12V + OUTPUT REF G – –2V TO –12V – DUAL SUPPLY BASIC CONNECTION Figure 36 shows the basic connection circuit for the AD8223. The ...
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AD8223 Driving a Cable All cables have a certain capacitance per unit length, which varies widely with cable type. The capacitive load from the cable may cause peaking in the output response of the AD8223. To reduce the peaking, use ...
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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 ...
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... AD8223ARM −40°C to +85°C AD8223ARM-RL −40°C to +85°C AD8223ARM-R7 −40°C to +85°C 1 AD8223ARMZ −40°C to +85°C 1 AD8223ARMZ-RL −40°C to +85°C 1 AD8223ARMZ-R7 −40°C to +85°C AD8223ARZ 1 −40°C to +85°C 1 AD8223ARZ-RL −40°C to +85°C ...