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AD5293 Scheda tecnica(PDF) 4 Page - Analog Devices |
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AD5293 Scheda tecnica(HTML) 4 Page - Analog Devices |
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4 / 20 page  AD5293 Rev. 0 | Page 4 of 20 Parameter Symbol Conditions Min Typ1 Max Unit DYNAMIC CHARACTERISTICS4, 8 Bandwidth BW −3 dB 520 kHz Total Harmonic Distortion THDW VA = 1 V rms, VB = 0 V, f = 1 kHz, −93 dB VW Settling Time tS VA = 30 V, VB = 0 V, ±0.5 LSB error band, initial code = zero scale Code = full scale, normal mode 750 ns Code = full scale, R-Perf mode 2.5 μs Code = half scale, normal mode 2.5 μs Code = half scale, R-Perf mode 5 μs Resistor Noise Density eN_WB RWB = 10 kΩ, TA = 25°C, 0 kHz to 200 kHz 0.11 nV/√Hz 1 Typicals represent average readings at 25°C; VDD = +15 V, VSS = −15 V, and VLOGIC = 5 V. 2 Resistor position nonlinearity error. R-INL is the deviation from an ideal value measured between the RWB at Code 0x02 and the RWB at Code 0xFF or between RWA at Code 0xFD and RWA at Code 0x00. R-DNL measures the relative step change from ideal between successive tap positions. The specification is guaranteed in resistor performance mode with a wiper current of 1 mA for VA < 12 V and 1.2 mA for VA ≥ 12 V. 3 The terms resistor performance mode and R-Perf mode are used interchangeably. 4 Guaranteed by design; not subject to production test. 5 INL and DNL are measured at VW with the RDAC configured as a potentiometer divider similar to a voltage output DAC. VA = VDD and VB = 0 V. DNL specification limits of ±1 LSB maximum are guaranteed monotonic operating conditions. 6 The A, B, and W resistor terminals have no limitations on polarity with respect to each other. Dual-supply operation enables ground-referenced bipolar signal adjustment. 7 PDISS is calculated from (IDD × VDD) + (ISS × VSS) + (ILOGIC × VLOGIC). 8 All dynamic characteristics use VDD = +15 V, VSS = −15 V, and VLOGIC = 5 V. RESISTOR PERFORMANCE (R-PERF) MODE CODE RANGE Table 2. Resistor Tolerance per Code |VDD − VSS| = 30 V to 33 V |VDD − VSS| = 26 V to 30 V |VDD − VSS| = 22 V to 26 V |VDD − VSS| = 21 V to 22 V RWB RWA RWB RWA RWB RWA RWB RWA 1% R-Tolerance From 0x15E to 0x3FF From 0x00 to 0x2A1 From 0x1F4 to 0x3FF From 0x00 to 0x20B From 0x1F4 to 0x3FF From 0x00 to 0x20B N/A N/A 2% R-Tolerance From 0x8C to 0x3FF From 0x00 to 0x373 From 0xB4 to 0x3FF From 0x00 to 0x34B From 0xFA to 0x3FF From 0x00 to 0x305 From 0xFA to 0x3FF From 0x00 to 0x305 3% R-Tolerance From 0x5A to 0x3FF From 0x00 to 0x3A5 From 0x64 to 0x3FF From 0x00 to 0x39B From 0x78 to 0x3FF From 0x00 to 0x387 From 0x78 to 0x3FF From 0x00 to 0x387 |
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