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AD7849CNZ Arkusz danych(PDF) 3 Page - Analog Devices |
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AD7849CNZ Arkusz danych(HTML) 3 Page - Analog Devices |
3 / 20 page AD7849 Rev. C | Page 3 of 20 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, 200 pF to 0 V; VREF+ = 5 V; ROFS connected to 0 V; TA = TMIN to TMAX, unless otherwise noted. Temperature range for A, B, C versions is −40°C to +85°C. Table 1. Parameter A Version B Version C Version Unit Test Conditions/Comments RESOLUTION 14 16 16 Bits A version: 1 LSB = 2 (VREF+ − VREF−)/214; B, C versions: 1 LSB = 2 (VREF+ − VREF−)/216 UNIPOLAR OUTPUT VREF− = 0 V, VOUT = 0 V to 10 V Relative Accuracy at 25°C ±4 ±6 ±4 LSB typ TMIN to TMAX ±5 ±16 ±8 LSB max Differential Nonlinearity ±0.25 ±0.9 ±0.5 LSB max All grades guaranteed monotonic over temperature Gain Error at 25°C ±1 ±4 ±4 LSB typ VOUT load = 10 MΩ TMIN to TMAX ±4 ±16 ±16 LSB max Offset Error at 25°C ±1 ±4 ±4 LSB typ TMIN to TMAX ±6 ±24 ±16 LSB max Gain Temperature Coefficient1 ±2 ±2 ±2 ppm FSR/ °C typ Offset Temperature Coefficient1 ±2 ±2 ±2 ppm FSR/ °C typ BIPOLAR OUTPUT VREF− = 5 V, VOUT = −10 V to +10 V Relative Accuracy at 25°C ±2 ±3 ±2 LSB typ TMIN to TMAX ±3 ±8 ±4 LSB max Differential Nonlinearity ±0.25 ±0.9 ±0.5 LSB max All grades guaranteed monotonic over temperature Gain Error at 25°C ±1 ±4 ±4 LSB typ VOUT load = 10 MΩ TMIN to TMAX ±4 ±16 ±16 LSB max Offset Error at 25°C ±0.5 ±2 ±2 LSB typ TMIN to TMAX ±3 ±12 ±8 LSB max Bipolar Zero Error at 25°C ±0.5 ±2 ±2 LSB typ TMIN to TMAX ±4 ±12 ±8 LSB max Gain Temperature Coefficient1 ±2 ±2 ±2 ppm FSR/ °C typ Offset Temperature Coefficient1 ±2 ±2 ±2 ppm FSR/ °C typ Bipolar Zero Temperature Coefficient1 ±2 ±2 ±2 ppm FSR/ °C typ REFERENCE INPUT Input Resistance 25 25 25 kΩ min Resistance from VREF+ to VREF− 43 43 43 kΩ max Typically 34 kΩ VREF+ Range VSS + 6 to VDD − 6 VSS + 6 to VDD − 6 VSS + 6 to VDD − 6 V VREF− Range VSS + 6 to VDD − 6 VSS + 6 to VDD − 6 VSS + 6 to VDD − 6 V OUTPUT CHARACTERISTICS Output Voltage Swing VSS + 4 to VDD − 4 VSS + 4 to VDD − 4 VSS + 4 to VDD − 4 V max Resistive Load 2 2 2 kΩ min To 0 V Capacitive Load 200 200 200 pF max To 0 V Output Resistance 0.3 0.3 0.3 Ω typ Short-Circuit Current ±25 ±25 ±25 mA typ Voltage range: −10 V to +10 V |
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