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AD7846 Datasheet(PDF) 3 Page - Analog Devices |
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AD7846 Datasheet(HTML) 3 Page - Analog Devices |
3 / 24 page AD7846 Rev. G | Page 3 of 24 SPECIFICATIONS VDD = +14.25 V to +15.75 V; VSS = −14.25 V to –15.75 V; VCC = +4.75 V to +5.25 V. VOUT loaded with 2 kΩ, 1000 pF to 0 V; VREF+ = +5 V; RIN connected to 0 V. All specifications TMIN to TMAX, unless otherwise noted. Table 1. Parameter1 J, A Versions K, B Versions Unit Test Conditions/Comments RESOLUTION 16 16 Bits UNIPOLAR OUTPUT VREF− = 0 V, VOUT = 0 V to +10 V Relative Accuracy at +25°C ±12 ±4 LSB typ 1 LSB = 153 μV TMIN to TMAX ±16 ±8 LSB max Differential Nonlinearity Error ±1 ±0.5 LSB max All grades guaranteed monotonic Gain Error at +25°C ±12 ±6 LSB typ VOUT load = 10 MΩ TMIN to TMAX ±16 ±16 LSB max Offset Error at +25°C ±12 ±6 LSB typ TMIN to TMAX ±16 ±16 LSB max Gain TC2 ±1 ±1 ppm FSR/°C typ Offset TC2 ±1 ±1 ppm FSR/°C typ BIPOLAR OUTPUT VREF− = –5 V, VOUT = −10 V to +10 V Relative Accuracy at +25°C ±6 ±2 LSB typ 1 LSB = 305 μV TMIN to TMAX ±8 ±4 LSB max Differential Nonlinearity Error ±1 ±0.5 LSB max All grades guaranteed monotonic Gain Error at +25°C ±6 ±4 LSB typ VOUT load = 10 MΩ TMIN to TMAX ±16 ±16 LSB max Offset Error at +25°C ±6 ±4 LSB typ VOUT load = 10 MΩ TMIN to TMAX ±16 ±12 LSB max Bipolar Zero Error at +25°C ±6 ±4 LSB typ TMIN to TMAX ±12 ±8 LSB max Gain TC2 ±1 ±1 ppm FSR/°Ctyp Offset TC2 ±1 ±1 ppm FSR/°Ctyp Bipolar Zero TC2 ±1 ±1 ppm FSR/°Ctyp REFERENCE INPUT Input Resistance 20 20 kΩ min Resistance from VREF+ to VREF− 40 40 kΩ max Typically 30 kΩ VREF+ Range VSS + 6 to VSS + 6 to V min to VDD − 6 VDD − 6 V max VREF− Range VSS + 6 to VSS + 6 to V min to VDD − 6 VDD − 6 V max OUTPUT CHARACTERISTICS Output Voltage Swing VSS + 4 to VSS + 4 to V max VDD − 3 VDD − 3 Resistive Load 2 2 kΩ min To 0 V Capacitive Load 1000 1000 pF max To 0 V Output Resistance 0.3 0.3 Ω typ Short Circuit Current ±25 ±25 mA typ To 0 V or any power supply DIGITAL INPUTS VIH (Input High Voltage) 2.4 2.4 V min VIL (Input Low Voltage) 0.8 0.8 V max IIN (Input Current) ±10 ±10 μA max CIN (Input Capacitance)2 10 10 pF max |
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