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AD5172 Scheda tecnica(PDF) 4 Page - Analog Devices |
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AD5172 Scheda tecnica(HTML) 4 Page - Analog Devices |
4 / 24 page AD5172/AD5173 Rev. A | Page 4 of 24 ELECTRICAL CHARACTERISTICS—10 kΩ, 50 kΩ, 100 kΩ VERSIONS Table 2. VDD = 5 V ± 10% or 3 V ± 10%; VA = VDD; VB = 0 V; –40°C < TA < +125°C; unless otherwise noted Parameter Symbol Conditions Min Typ1 Max Unit DC CHARACTERISTICS—RHEOSTAT MODE Resistor Differential Nonlinearity2 R-DNL RWB, VA = No Connect –1 ±0.1 +1 LSB Resistor Integral Nonlinearity2 R-INL RWB, VA = No Connect –2.5 ±0.25 +2.5 LSB Nominal Resistor Tolerance3 ∆RAB TA = 25°C –20 +20 % Resistance Temperature Coefficient (∆RAB/RAB)/∆T VAB = VDD, Wiper = No Connect 35 ppm/°C RWB (Wiper Resistance) RWB Code = 0x00, VDD = 5 V 160 200 Ω DC CHARACTERISTICS—POTENTIOMETER DIVIDER MODE (Specifications Apply to all VRs) Differential Nonlinearity4 DNL –1 ±0.1 +1 LSB Integral Nonlinearity4 INL –1 ±0.3 +1 LSB Voltage Divider Temperature Coefficient (∆VW/VW)/∆T Code = 0x80 15 ppm/°C Full-Scale Error VWFSE Code = 0xFF –2.5 –1 0 LSB Zero-Scale Error VWZSE Code = 0x00 0 1 2.5 LSB RESISTOR TERMINALS Voltage Range5 VA, VB, VW GND VDD V Capacitance6 A, B CA, CB f = 1 MHz, Measured to GND, Code = 0x80 45 pF Capacitance6 W CW f = 1 MHz, Measured to GND, Code = 0x80 60 pF Shutdown Supply Current7 IA_SD VDD = 5.5 V 0.01 1 µA Common-Mode Leakage ICM VA = VB = VDD/2 1 nA DIGITAL INPUTS AND OUTPUTS Input Logic High VIH VDD = 5 V 2.4 V Input Logic Low VIL VDD = 5 V 0.8 V Input Logic High VIH VDD = 3 V 2.1 V Input Logic Low VIL VDD = 3 V 0.6 V Input Current IIL VIN = 0 V or 5 V ±1 µA Input Capacitance6 CIL 5 pF POWER SUPPLIES Power Supply Range VDD RANGE 2.7 5.5 V OTP Supply Voltage8 VDD_OTP 6 6.5 V Supply Current IDD VIH = 5 V or VIL = 0 V 3.5 6 µA OTP Supply Current9 IDD_OTP 100 mA Power Dissipation10 PDISS VIH = 5 V or VIL = 0 V, VDD = 5 V 30 µW Power Supply Sensitivity PSS VDD = +5 V ± 10%, Code = Midscale ±0.02 ±0.08 %/% DYNAMIC CHARACTERISTICS11 Bandwidth –3 dB BW RAB = 10 kΩ, Code = 0x80 600 kHz RAB = 50 kΩ, Code = 0x80 100 kHz RAB = 100 kΩ, Code = 0x80 40 kHz Total Harmonic Distortion THDW VA =1 V rms, VB = 0 V, f = 1 kHz, RAB = 10 kΩ 0.1 % VW Settling Time (10 kΩ/50 kΩ/100 kΩ) tS VA = 5 V, VB = 0 V, ±1 LSB Error Band 2 µs Resistor Noise Voltage Density eN_WB RWB = 5 kΩ, RS = 0 9 nV/√Hz 1 Typical specifications represent average readings at 25°C and VDD = 5 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. Parts are guaranteed monotonic. 3 VAB = VDD, Wiper (VW) = no connect. 4 INL and DNL are measured at VW with the RDAC configured as a potentiometer divider similar to a voltage output D/A converter. VA = VDD and VB = 0 V. DNL specification limits of ±1 LSB maximum are guaranteed monotonic operating conditions. 5 Resistor terminals A, B, W have no limitations on polarity with respect to each other. 6 Guaranteed by design and not subject to production test. 7 Measured at the A terminal. The A terminal is open circuited in shutdown mode. 8 Different from operating power supply, power supply OTP is used one time only. 9 Different from operating current, supply current for OTP lasts approximately 400 ms for one time only. 10 PDISS is calculated from (IDD × VDD). CMOS logic level inputs result in minimum power dissipation. 11 All dynamic characteristics use VDD = 5 V. |
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