AD623AR-REEL

AD623AN AD | Alldatasheet

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Rev. D | Page 2 of 24 TABLE OF CONTENTS Input Differential and Common-Mode Range vs. Supply and

REVISION HISTORY

7/08—Rev. C to Rev. D Changes to Features Section and General Description Section . 1 9/99—Rev. B to Rev. C

Rev. D | Page 3 of 24 SPECIFICATIONS SINGLE SUPPLY Typical @ 25°C single supply, VS = 5 V , and RL = 10 kΩ, unless otherwise noted. Table 1. AD623A AD623ARM AD623B Parameter Conditions Min Typ Max Min Typ Max Min Typ Max Unit GAIN G = 1 + (100 k/RG) Gain Range 1 1000 1 1000 1 1000 Gain Error1 G1 VOUT = 0.05 V to 3.5 V G > 1 VOUT = 0.05 V to 4.5 V Nonlinearity G1 VOUT = 0.05 V to 3.5 V G > 1 VOUT = 0.05 V to 4.5 V G = 1 to 1000 50 50 50 ppm Gain vs. Temperature G = 1 5 10 5 10 5 10 ppm/°C G > 11 50 50 50 ppm/°C VOLTAGE OFFSET Total RTI error = VOSI + VOSO/G Input Offset, VOSI 25 200 200 500 25 100 μV Over Temperature 350 650 160 μV Average Tempco 0.1 2 0.1 2 0.1 1 μV/°C Output Offset, VOSO 200 1000 500 2000 200 500 μV Over Temperature 1500 2600 1100 μV Average Tempco 2.5 10 2.5 10 2.5 10 μV/°C Offset Referred to the Input vs. Supply (PSR) G = 1 80 100 80 100 80 100 dB G = 10 100 120 100 120 100 120 dB G = 100 120 140 120 140 120 140 dB G = 1000 120 140 120 140 120 140 dB INPUT CURRENT Input Bias Current 17 25 17 25 17 25 nA Over Temperature 27.5 27.5 27.5 nA Average Tempco 25 25 25 pA/°C Input Offset Current 0.25 2 0.25 2 0.25 2 nA Over Temperature 2.5 2.5 2.5 nA Average Tempco 5 5 5 pA/°C

Rev. D | Page 4 of 24 AD623A AD623ARM AD623B Parameter Conditions Min Typ Max Min Typ Max Min Typ Max Unit I N P U T Input Impedance Input Voltage Range2 VS = 3 V to 12 V (−VS) − 0.15 (+VS) − 1.5 (−VS) − 0.15 (+VS) − 1.5 (−VS) − 0.15 (+VS) − 1.5 V Common-Mode Rejection at 60 Hz with 1 kΩ Source Imbalance G = 1 VCM = 0 V to 3 V 70 80 70 80 77 86 dB G = 10 VCM = 0 V to 3 V 90 100 90 100 94 100 dB G = 100 VCM = 0 V to 3 V 105 110 105 110 105 110 dB G = 1000 VCM = 0 V to 3 V 105 110 105 110 105 110 dB O U T P U T Output Swing RL = 10 kΩ 0.01 (+VS) − 0.5 0.01 (+VS) − 0.5 0.01 (+VS) − 0.5 V R L = 100 kΩ 0.01 (+VS) − 0.15 0.01 (+VS) − 0.15 0.01 (+VS) − 0.15 V DYNAMIC RESPONSE Small Signal −3 dB Bandwidth G = 1 800 800 800 kHz G = 10 100 100 100 kHz G = 100 10 10 10 kHz G = 1000 2 2 2 kHz Slew Rate 0.3 0.3 0.3 V/μs Settling Time to 0.01% VS = 5 V G = 1 Step size: 3.5 V 30 30 30 μs G = 10 Step size: 4 V, VCM = 1.8 V 20 20 20 μs 1 Does not include effects of external resistor, RG. 2 One input grounded. G = 1. DUAL SUPPLIES Typical @ 25°C dual supply, VS = ±5 V , and RL = 10 kΩ, unless otherwise noted. Table 2. AD623A AD623ARM AD623B Parameter Conditions Min Typ Max Min Typ Max Min Typ Max Unit GAIN G = 1 + (100 k/R Gain Range 1 1000 1 1000 1 1000 Gain Error1 G1 VOUT = −4.8 V to +3.5 V G > 1 VOUT = 0.05 V to 4.5 V

Rev. D | Page 5 of 24 AD623A AD623ARM AD623B Parameter Conditions Min Typ Max Min Typ Max Min Typ Max Unit Nonlinearity G1 VOUT = −4.8 V to +3.5 V G > 1 VOUT = −4.8 V to +4.5 V G = 1 to 1000 50 50 50 ppm Gain vs. Temperature G = 1 5 10 5 10 5 10 ppm/°C G > 11 50 50 50 ppm/°C VOLTAGE OFFSET Total RTI error = VOSI + VOSO/G Input Offset, VOSI 25 200 200 500 25 100 μV Over Temperature 350 650 160 μV Average Tempco 0.1 2 0.1 2 0.1 1 μV/°C Output Offset, VOSO 200 1000 500 2000 200 500 μV Over Temperature 1500 2600 1100 μV Average Tempco 2.5 10 2.5 10 2.5 10 μV/°C Offset Referred to the Input vs. Supply (PSR) G = 1 80 100 80 100 80 100 dB G = 10 100 120 100 120 100 120 dB G = 100 120 140 120 140 120 140 dB G = 1000 120 140 120 140 120 140 dB INPUT CURRENT Input Bias Current 17 25 17 25 17 25 nA Over Temperature 27.5 27.5 27.5 nA Average Tempco 25 25 25 pA/°C Input Offset Current 0.25 2 0.25 2 0.25 2 nA Over Temperature 2.5 2.5 2.5 nA Average Tempco 5 5 5 pA/°C I N P U T Input Impedance Input Voltage Range2 VS = +2.5 V to ±6 V (−VS) – 0.15 (+VS) – 1.5 (−VS) – 0.15 (+VS) – 1.5 (−VS) – 0.15 (+VS) – 1.5 V Common-Mode Rejection at

60 Hz with 1 kΩ Source

G = 1 VCM = +3.5 V to −5.15 V 70 80 70 80 77 86 dB G = 10 VCM = +3.5 V to −5.15 V 90 100 90 100 94 100 dB G = 100 VCM = +3.5 V to −5.15 V 105 110 105 110 105 110 dB G = 1000 VCM = +3.5 V to −5.15 V 105 110 105 110 105 110 dB O U T P U T Output Swing RL = 10 kΩ, VS = ±5 V (−VS) + 0.2 (+VS) − 0.5 (−VS) + 0.2 (+VS) − 0.5 (−VS) + 0.2 (+VS) − 0.5 V R L = 100 kΩ (−VS) + 0.05 (+VS) − 0.15 (−VS) + 0.05 (+VS) − 0.15 (−VS) + 0.05 (+VS) − 0.15 V

Rev. D | Page 6 of 24 AD623A AD623ARM AD623B Parameter Conditions Min Typ Max Min Typ Max Min Typ Max Unit DYNAMIC RESPONSE Small Signal −3 dB Bandwidth G = 1 800 800 800 kHz G = 10 100 100 100 kHz G = 100 10 10 10 kHz G = 1000 2 2 2 kHz Slew Rate 0.3 0.3 0.3 V/μs Settling Time to 0.01% VS = ±5 V,

5 V step

G = 1 30 30 30 μs G = 10 20 20 20 μs 1 Does not include effects of external resistor, RG. 2 One input grounded. G = 1. BOTH DUAL AND SINGLE SUPPLIES Table 3. AD623A AD623ARM AD623B Parameter Conditions Min Typ Max Min Typ Max Min Typ Max Unit NOISE Voltage Noise, 1 kHz Total RTI noise = () () 22 /G e enoni + Input, Voltage Noise, eni 35 35 35 nV/√Hz Output, Voltage Noise, eno 50 50 50 nV/√Hz RTI, 0.1 Hz to 10 Hz G = 1 3.0 3.0 3.0 μV p-p G = 1000 1.5 1.5 1.5 μV p-p Current Noise f = 1 kHz 100 100 100 fA/√Hz 0.1 Hz to 10 Hz 1.5 1.5 1.5 pA p-p REFERENCE INPUT RIN 100 ± 20% 100 ± 20% 100 ± 20% kΩ IIN VIN+, VREF = 0 V 50 60 50 60 50 60 μA Voltage Range −VS +VS −V S +VS −V S +VS V Gain to Output 1 ± 0.0002 1 ± 0.0002 1 ± 0.0002 V POWER SUPPLY Operating Range Dual supply ±2.5 ±6 ±2.5 ±6 ±2.5 ±6 V Single supply 2.7 12 2.7 12 2.7 12 V Quiescent Current Dual supply 375 550 375 550 375 550 μA Single supply 305 480 305 480 305 480 μA Over Temperature 625 625 625 μA TEMPERATURE RANGE For Specified Performance −40 +85 −40 +85 −40 +85 °C

Rev. D | Page 7 of 24 ABSOLUTE MAXIMUM RATINGS Table 4. Parameter Rating Supply Voltage ±6 V Internal Power Dissipation1 650 mW Differential Input Voltage ±6 V Output Short-Circuit Duration Indefinite Storage Temperature Range −65°C to +125°C Operating Temperature Range −40°C to +85°C Lead Temperature (Soldering, 10 sec) 300°C

1 Specification is for device in free air:

8-Lead PDIP Package: θJA = 95°C/W 8-Lead SOIC Package: θJA = 155°C/W 8-Lead MSOP Package: θJA = 200°C/W. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ESD CAUTION

each amplifier feedback assures gain programmability. common-mode signal at the output of the input amplifiers. enhanced (see Figure 20 and Figure 21). resistor between Pin 5 and Pin 6 is all that is needed. Figure 41. Simplified Schematic amplifier limits the bandwidth.

devices to avoid degrading the circuit’s common-mode rejection. PPS film capacitors are recommended. mismatch between the inputs. Figure 46. Common-Mode Shield Driver impedance of ground returns (and hence the size of dc errors). achieved by connecting the ground planes back at the supplies. minimize interference between the digital and analog circuitry. should be connected at the ground pin of the power supply. route current to both digital and analog circuitry.

4 VIN1

3 VIN2

Figure 47. Optimal Grounding Practice for a Bipolar Supply Environment with Separate Analog and Digital Supplies Figure 48. Optimal Ground Practice in a Single Supply Environment

0.1 V below ground, it is possible to measure small differential

signals which have low, or no, common-mode component. of the J-type thermocouple is grounded. Figure 54. Amplifying Bipolar Signals with Low Common-Mode Voltage couple delivers a voltage ranging from −7.890 mV to +10.777 mV . from 1.110 V to 3.077 V relative to ground. Figure 55. Simplified Block Diagram particular common-mode voltage, gain, and power supply. maximum differential voltage are the lesser of the two equations. DIFF may have to be lower according the following equation. the previous equations yield because the REF pin is at midsupply. conditions in the Specifications section. the lesser of the two equations. because the REF pin must be at midsupply. referenced to the voltage on the REF pin. input voltage into its differential and common-mode component. input voltage of −10 mV (that is, +IN − −IN).

Table 8. Maximum Attainable Gain and Resulting Output Swing for Different Input Conditions

0.65 BSC

1.10 MAX

Figure 58. 8-Lead Mini Small Outline Package [MSOP]

Rev. D | Page 24 of 24 NOTES ©1997–2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the prop erty of their respective owners. D00788-0-7/08(D)