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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AD637JRZ-R7 датащи(PDF) 4 Page - Analog Devices |
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AD637JRZ-R7 датащи(HTML) 4 Page - Analog Devices |
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4 / 20 page  AD637 Rev. K | Page 4 of 20 AD637J/AD637A AD637K/AD637B AD637S Parameter Min Typ Max Min Typ Max Min Typ Max Unit OUTPUT CHARACTERISTICS Offset Voltage ±1 ±0.5 ±1 mV vs. Temperature ±0.05 ±0.089 ±0.04 ±0.056 ±0.04 ±0.07 mV/°C Voltage Swing, ±15 V Supply, 2 kΩ Load 0 to 12.0 13.5 0 to 12.0 13.5 0 to 12.0 13.5 V Voltage Swing, ±3 V Supply, 2 kΩ Load 0 to 2 2.2 0 to 2 2.2 0 to 2 2.2 V Output Current 6 6 6 mA Short-Circuit Current 20 20 20 mA Resistance Chip Select High 0.5 0.5 0.5 Ω Resistance Chip Select Low 100 100 100 kΩ dB OUTPUT Error, VIN 7 mV to 7 V rms, 0 dB = 1 V rms ±0.5 ±0.3 ±0.5 dB Scale Factor −3 −3 −3 mV/dB Scale Factor Temperature Coefficient +0.33 +0.33 +0.33 % of reading/°C −0.033 −0.033 −0.033 dB/°C IREF for 0 dB = 1 V rms 5 20 80 5 20 80 5 20 80 μA IREF Range 1 100 1 100 1 100 μA BUFFER AMPLIFIER Input Output Voltage Range −VS to (+VS − 2.5 V) −VS to (+VS − 2.5 V) −VS to (+VS − 2.5 V) V Input Offset Voltage ±0.8 ±2 ±0.5 ±1 ±0.8 ±2 mV Input Current ±2 ±10 ±2 ±5 ±2 ±10 nA Input Resistance 108 108 108 Ω Output Current −0.13 +5 −0.13 +5 −0.13 +5 mA Short-Circuit Current 20 20 20 mA Small Signal Bandwidth 1 1 1 MHz Slew Rate6 5 5 5 V/μs DENOMINATOR INPUT Input Range 0 to 10 0 to 10 0 to 10 V Input Resistance 20 25 30 20 25 30 20 25 30 kΩ Offset Voltage ±0.2 ±0.5 ±0.2 ±0.5 ±0.2 ±0.5 mV CHIP SELECT (CS) RMS On Level Open or 2.4 V < VC < +VS Open or 2.4 V < VC < +VS Open or 2.4 V < VC < +VS RMS Off Level VC < 0.2 V VC < 0.2 V VC < 0.2 V IOUT of Chip Select CS Low 10 10 10 μA CS High 0 0 0 μA On Time Constant 10 + ((25 kΩ) × CAV) 10 + ((25 kΩ) × CAV) 10 + ((25 kΩ) × CAV) μs Off Time Constant 10 + ((25 kΩ) × CAV) 10 + ((25 kΩ) × CAV) 10 + ((25 kΩ) × CAV) μs POWER SUPPLY Operating Voltage Range ±3.0 ±18 ±3.0 ±18 ±3.0 ±18 V Quiescent Current 2.2 3 2.2 3 2.2 3 mA Standby Current 350 450 350 450 350 450 μA 1 Specifications shown in bold are tested on all production units at final electrical test. Results from those tests are used to calculate outgoing quality levels. All minimum and maximum specifications are guaranteed, although only those shown in boldface are tested on all production units. 2 Accuracy specified 0 V rms to 7 V rms dc with AD637 connected, as shown in . Figure 5 3 Nonlinearity is defined as the maximum deviation from the straight line connecting the readings at 10 mV and 2 V. 4 Error vs. crest factor is specified as additional error for 1 V rms. 5 Input voltages are expressed in volts rms. Percent is in % of reading. 6 With external 2 kΩ pull-down resistor tied to −VS. |
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