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UCD3138 Datasheet(PDF) 16 Page - Texas Instruments |
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UCD3138 Datasheet(HTML) 16 Page - Texas Instruments |
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16 / 68 page  UCD3138 SLUSAP2 A – MARCH 2012 – REVISED MARCH 2012 www.ti.com ELECTRICAL CHARACTERISTICS (continued) V33A = V33D = V33DIO = 3.3V; 1 μF from VREG to DGND, TJ = –40°C to 125°C (unless otherwise noted) PARAMETER TEST CONDITION MIN TYP MAX UNIT ERROR ADC INPUTS EAP, EAN EAP-AGND –0.15 1.998 V EAP-EAN -0.256 1.848 V Error range AFE = 0 –256 248 mV AFE = 3 0.95 1 1.20 mV AFE = 2 1.90 2 2.30 mV EAP-EAN Error voltage digital resolution AFE = 1 3.72 4 4.45 mV AFE = 0 7.3 8 9.10 mV REA Input impedance AGND reference 0.5 M Ω IOFFSET Input offset current –5 5 μA Input voltage = 0 V at AFE = 0 –2 2 LSB Input voltage = 0 V at AFE = 1 -2.5 2.5 LSB EADC Offset Input voltage = 0 V at AFE = 2 -3 -3 LSB Input voltage = 0 V at AFE = 3 -4 4 LSB Sample Rate 16 MHz Analog Frond End Amplifier Bandwidth 100 MHz Gain 1 V/V A0 Minimum output voltage 100 mV EADC DAC DAC range 0 1.6 V VREF DAC reference resolution 10 bit, No dithering enabled 1.56 mV VREF DAC reference resolution With 4 bit dithering enabled 97.6 μV INL –3.0 3.0 LSB DNL Does not include MSB transition –2.1 1.6 LSB DNL at MSB transition -1.4 LSB DAC reference voltage 1.58 1.61 V τ Settling Time From 10% to 90% 250 ns ADC12 IBIAS Bias current for PMBus address pins 9.5 10.5 μA Measurement range for voltage monitoring 0 2.5 V Internal ADC reference voltage –40°C to 125°C 2.475 2.500 2.525 V 25°C to –40°C -0.4 Internal ADC reference from 25°C 25°C to 85°C -1.8 mV reference voltage(1) 25°C to 125°C -4.2 ADC12 INL integral nonlinearity(1) +/-2.5 LSB ADC12 DNL differential nonlinearity(1) -0.7/+2.5 LSB ADC_SAMPLINGSEL = 6 for all ADC12 data, 25 °C to 125 °C ADC Zero Scale Error -4 4 mV ADC Full Scale Error -35 35 mV Input bias 2.5 V applied to pin 400 nA Input leakage resistance 1 M Ω Input Capacitance 10 pF ADC single sample conversion time 3.9 μs (1) As designed and characterized. Not 100% tested in production. 16 Electrical Specifications Copyright © 2012, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): UCD3138 |
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