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AD5270 bảng dữ liệu(PDF) 4 Page - Analog Devices |
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4 / 24 page AD5270/AD5271 Data Sheet Rev. F | Page 4 of 24 Parameter Symbol Test Conditions/Comments Min Typ1 Max Unit Power Dissipation10 VIH = VDD or VIL = GND 5.5 µW Power Supply Rejection Ratio5 PSRR ΔVDD/ΔVSS = ±5 V ± 10% dB RAW = 20 kΩ −66 −55 RAW = 50 kΩ −75 −67 RAW = 100 kΩ −78 −70 DYNAMIC CHARACTERISTICS5, 11 Bandwidth −3 dB, RAW = 10 kΩ, Terminal W, see Figure 42 kHz RAW = 20 kΩ 300 RAW = 50 kΩ 120 RAW = 100 kΩ 60 Total Harmonic Distortion VA = 1 V rms, f = 1 kHz, code = half scale dB RAW = 20 kΩ −90 RAW = 50 kΩ −88 RAW= 100 kΩ −85 Resistor Noise Density Code = half scale, TA = 25°C nV/√Hz RAW = 20 kΩ 13 RAW = 50 kΩ 25 RAW = 100 kΩ 32 1 Typical specifications represent average readings at 25°C, VDD = 5 V, and VSS = 0 V. 2 Resistor position nonlinearity error (R-INL) is the deviation from an ideal value measured between the maximum resistance and the minimum resistance wiper positions. R-DNL measures the relative step change from ideal between successive tap positions. 3 The maximum current in each code is defined by IAW = (VDD − 1)/RAW. 4 The terms resistor performance mode and R-Perf mode are used interchangeably. See the Resistor Performance Mode section. 5 Guaranteed by design and not subject to production test. 6 See Figure 25 for more details. 7 Resistor Terminal A and Resistor Terminal W have no limitations on polarity with respect to each other. Dual-supply operation enables ground referenced bipolar signal adjustment. 8 Different from operating current, the supply current for the fuse program lasts approximately 55 ms. 9 Different from operating current, the supply current for the fuse read lasts approximately 500 ns. 10 PDISS is calculated from (IDD × VDD) + (ISS × VSS). 11 All dynamic characteristics use VDD = +2.5 V, VSS = −2.5 V. Table 2. AD5270—20 kΩ Resistor Performance Mode Code Range Resistor Tolerance Per Code |VDD − VSS| = 4.5 V to 5.5 V |VDD − VSS| = 2.7 V to 4.5 V R-TOLERANCE 1% R-Tolerance From 0x078 to 0x3FF From 0x0BE to 0x3FF 2% R-Tolerance From 0x037 to 0x3FF From 0x055 to 0x3FF 3% R-Tolerance From 0x028 to 0x3FF From 0x037 to 0x3FF Table 3. AD5270—50 kΩ and 100 kΩ Resistor Performance Mode Code Range Resistor Tolerance Per Code RAW = 50 kΩ RAW = 100 kΩ R-TOLERANCE 1% R-Tolerance From 0x078 to 0x3FF From 0x04B to 0x3FF 2% R-Tolerance From 0x055 to 0x3FF From 0x032 to 0x3FF 3% R-Tolerance From 0x032 to 0x3FF From 0x019 to 0x3FF |
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Mô tả tương tự - AD5270 |
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