TC14433A

The TC14433A is a low power, high-performance, monolithic CMOS 3½ digit A/D converter. The TC14433A combines both analog and digital circuits on a single IC, thus minimizing the number of external components. This dual-slope A/D converter provides automatic polarity and zero correction with the addition of two external resistors and two capacitors. The full-scale voltage range of this ratiometric IC extends from 199.9 mV to 1.999 V. The TC14433A can operate over a wide range of power supply voltages, including batteries and standard 5-volt supplies. The TC14433A features improved performance over the industry standard TC14433. Rollover, which is the measurement of identical positive and negative signals, is guaranteed to have the same reading within one count for the TC14433A. Power consumption of the TC14433A is typically 4 mW, approximately one-half that of the industry standard TC14433.

Features
  • Accuracy: ±0.05% of Reading ±1 Count
  • Two Voltage Ranges: 1.999V and 199.9 mV
  • Up to 25 Conversions per Second
  • Zin > 1000M Ohms
  • Single Positive Voltage Reference
  • Auto-Polarity and Auto-Zero
  • Overrange and Underrange Signals Available
  • Operates in Auto-Ranging Circuits
  • Uses On-Chip System Clock or External Clock
Parameter
Parameter Name Value Value
Supply Voltage (V) 4.5 to ±8 4.5 to ±8
Input Voltage Range (V) 199.9 mV to 1.999 199.9 mV to 1.999
DMM Yes Yes
Max Power (mW) 20 20
Resolution (Digits) 3 3
Resolution (Counts) 2000 2000
Interface MUXed BCD MUXed BCD
Temp Range (°C) -40 to +85 -40 to +85
Device Description BCD A/D BCD A/D
Documents
3-1/2 Digit, Analog-to-Digital ConverterData Sheets07/10/2008382KB
Analog & Interface Guide (Volume 2)Brochures10/11/20051067KB
Quick Guide to Microchip Development ToolsBrochures10/15/201411223KB
Analog-to-Digital Converters Product OverviewProduct Line Documents10/27/200683KB
Analog & Interface Product Selector GuideProduct Line Card03/21/20164116KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
TC14433AELI28PLCC-40C to +85CTUBE13.7811.4810.448.708.03
TC14433AEPG24PDIP-40C to +85CTUBE6.605.505.004.173.85
Similar Devices
ProductDescriptionSupply Voltage (V)Resolution CountsInterfacePrice5K
TC14433BCD A/D4.5 to ±82000MUXed BCD$3.41
TC14433ABCD A/D4.5 to ±82000MUXed BCD$3.57
TC850Binary A/D5327688-bit Parallel$15.38
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
TC14433AELI1.1425000.43589728PLCC11.5x11.5x4.3Matte Tine3
TC14433AELI7131.1425001.73333328PLCC11.5x11.5x4.3Matte Tine3
TC14433AEPG1.8507003.33333324PDIP.600inMatte Tine3
3-1/2 Digit, Analog-to-Digital Converter TC14433A
Analog & Interface Guide (Volume 2) MCP23S08
Quick Guide to Microchip Development Tools ENC28J60
Analog-to-Digital Converters Product Overview TC850
Analog & Interface Product Selector Guide ENC624J600