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DDC112 Datasheet(PDF) 3 Page - Texas Instruments |
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DDC112 Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 34 page  DDC232 www.ti.com SBAS331D – AUGUST 2004 – REVISED APRIL 2010 ELECTRICAL CHARACTERISTICS At TA = +25°C, AVDD = +5V, DVDD = +3.0V, VREF = +4.096V, tINT = 333ms for DDC232C or 166ms for DDC232CK, Range 7, and continuous mode operation, unless otherwise noted. DDC232C DDC232CK PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNIT ANALOG INPUT RANGE Range 0 12.5 12.5 pC Range 1 45 50 55 45 50 55 pC Range 2 90 100 110 90 100 110 pC Range 3 135 150 165 135 150 165 pC Range 4 180 200 220 180 200 220 pC Range 5 225 250 275 225 250 275 pC Range 6 270 300 330 270 300 330 pC Range 7 315 350 385 315 350 385 pC Negative Full-Scale Range –0.4% of Positive Full-Scale Range –0.4% of Positive Full-Scale Range pC DYNAMIC CHARACTERISTICS Data Rate 3 3.125 6 6.2 kSPS Integration Time, tINT Continuous Mode 320 1,000,000 160 1,000,000 ms Noncontinuous Mode 50 50 ms System Clock (CLK) Clk_4x = 0 1 5 1 10 MHz Clk_4x = 1 4 20 4 40 MHz Data Clock (DCLK) 20 20 MHz Configuration Clock (CLK_CFG) 20 20 MHz ACCURACY Noise, Low-Level Input (1) CSENSOR (2) = 50pF 5.3 7 5.3 7 ppm of FSR (3), rms Integral Linearity Error (4) ±0.025% Reading ± 1.0ppm FSR, typ ±0.025% Reading ± 1.0ppm FSR, typ ±0.05% Reading ± 1.5ppm FSR, max ±0.05% Reading ± 1.5ppm FSR, max Resolution No Missing Codes, Format = 1 20 19 (5) Bits No Missing Codes, Format = 0 16 16 Bits Input Bias Current ±0.1 ±10 ±0.1 ±10 pA Range Error Match (6) 0.1 0.5 0.1 0.5 % of FSR Range Sensitivity to VREF VREF = 4.096 ±0.1V 1:1 1:1 Offset Error ±200 ±1000 ±200 ±1000 ppm of FSR Offset Error Match (6) ±100 ±100 ppm of FSR DC Bias Voltage (7) Low-Level Input (< 1% FSR) ±0.1 ±2 ±0.1 ±2 mV Power-Supply Rejection Ratio at DC 100 ±800 100 ±800 ppm of FSR/V (1) Input is less than 1% of full-scale. (2) CSENSOR is the capacitance seen at the DDC232 inputs from wiring, photodiode, etc. (3) FSR is Full-Scale Range. (4) A best-fit line is used in measuring nonlinearity. (5) Output word is 20 bits with 19 bits no missing codes. (6) Matching between side A and side B of the same input. (7) Voltage produced by the DDC232 at its input that is applied to the sensor. Copyright © 2004–2010, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): DDC232 |
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