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AD7834SQ Datasheet(PDF) 2 Page - Analog Devices |
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AD7834SQ Datasheet(HTML) 2 Page - Analog Devices |
2 / 16 page Parameter A B S Units Test Conditions/Comments ACCURACY Resolution 14 14 14 Bits Relative Accuracy ±2 ±1 ±2 LSB max Differential Nonlinearity ±0.9 ±0.9 ±0.9 LSB max Guaranteed Monotonic Over Temperature Full-Scale Error VREF(+) = +7 V, VREF(–) = –7 V TMIN to TMAX ±5 ±5 ±8 mV max Zero-Scale Error ±4 ±4 ±5 mV max VREF(+) = +7 V, VREF(–) = –7 V Gain Error ±0.5 ±0.5 ±0.5 mV typ VREF(+) = +7 V, VREF(–) = –7 V Gain Temperature Coefficient 2 4 4 4 ppm FSR/ °C typ 20 20 20 ppm FSR/ °C max DC Crosstalk 2 50 50 50 µV max See Terminology. RL = 10 kΩ REFERENCE INPUTS DC Input Resistance 30 30 30 M Ω typ Input Current ±1 ±1 ±1 µA max Per Input VREF(+) Range 0/+8.192 +7/+8.192 0/+8.192 V min/max VREF(–) Range –8.192/0 –8.192/0 –8.192/0 V min/max [VREF(+)–VREF(–)] 5/14 7/14 5/14 V min/max For Specified Performance. Can Go as Low as 0 V, but Performance Not Guaranteed DEVICE SENSE GROUND INPUTS Input Current ±2 ±2 ±2 µA max Per Input. VDSG = –2 V to +2 V DIGITAL INPUTS VINH, Input High Voltage 2.4 2.4 2.4 V min VINL, Input Low Voltage 0.8 0.8 0.8 V max IINH, Input Current ±10 ±10 ±10 µA max CIN, Input Capacitance 10 10 10 pF max POWER REQUIREMENTS VCC 5.0 5.0 5.0 V nom ±5% for Specified Performance VDD 15.0 15.0 15.0 V nom ±5% for Specified Performance VSS –15.0 –15.0 –15.0 V nom ±5% for Specified Performance Power Supply Sensitivity ∆Full Scale/∆V DD 110 110 110 dB typ ∆Full Scale/∆V SS 100 100 100 dB typ ICC 0.2 0.2 0.5 mA max VINH = VCC, VINL = DGND 3 3 3 mA max AD7834. VINH = 2.4 V min, VINL = 0.8 V max 6 6 6 mA max AD7835. VINH = 2.4 V min, VINL = 0.8 V max IDD 10 10 15 mA max AD7834. Outputs Unloaded 15 15 15 mA max AD7835. Outputs Unloaded ISS 10 10 15 mA max Outputs Unloaded –2– REV. A AD7834/AD7835–SPECIFICATIONS (VCC = +5 V ± 5%; VDD = +15 V ± 5%; VSS = –15 V ± 5%; AGND = DGND = 0 V; TA 1 = T MIN to TMAX, unless otherwise noted) (These characteristics are included for Design Guidance and are not subject to production testing. ) AC PERFORMANCE CHARACTERISTICS Parameter A B S Units Test Conditions/Comments DYNAMIC PERFORMANCE Output Voltage Settling Time 10 10 10 µs typ Full-Scale Change to ±1/2 LSB. DAC Latch Contents Alternately Loaded with All 0s and All 1s Digital-to-Analog Glitch Impulse 120 120 120 nV-s typ Measured with VREF(+) = VREF(–) = 0 V. DAC Latch Alternately Loaded with All 0s and All 1s DC Output Impedance 0.5 0.5 0.5 Ω typ See Terminology Channel-to-Channel Isolation 100 100 100 dB typ See Terminology; Applies to the AD7835 Only DAC to DAC Crosstalk 25 25 25 nV-s typ See Terminology Digital Crosstalk 3 3 3 nV-s typ Feedthrough to DAC Output Under Test Due to Change in Digital Input Code to Another Converter Digital Feedthrough – AD7834 0.2 0.2 0.2 nV-s typ Effect of Input Bus Activity on DAC Output Under Test Digital Feedthrough – AD7834 0.1 0.1 0.1 nV-s typ Output Noise Spectral Density @ 1 kHz 40 40 40 nV/ √Hz typ All 1s Loaded to DAC. V REF(+) = VREF(–) = 0 V NOTES 1Temperature range is as follows: A Version: –40 °C to +85°C; B Version: –40°C to +85°C; S Version: –55°C to +125°C. 2Guaranteed by design. Specifications subject to change without notice |
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