CA3162A

CA3162, CA3162A August 1997 A/D Converters for 3-Digit Display Description The CA3162E and CA3162AE are I2L monolithic A/D converters that provide a 3 digit multiplexed BCD output. They are used with the CA3161E BCD-to-Seven-Segment Decoder/Driver and a minimum of external parts to implement a complete 3-digit display. The CA3162AE is identical to the CA3162E except for an extended operating temperature range. The CA3161E is described in the Display Drivers section of this data book. Features Dual Slope A/D Conversion Multiplexed BCD Display Ultra Stable Internal Band Gap Voltage Reference Capable of Reading 99mV Below Ground with Single Supply Differential Input Internal Timing - No External Clock Required Choice of Low Speed (4Hz) or High Speed (96Hz) Conversion Rate “Hold” Inhibits Conversion but Maintains Delay Overrange Indication - “EEE” for Reading Greater than +999mV, “-” for Reading More Negative than -99mV When Used With CA3161E Extended Temperature Range Version Available Ordering Information PART NUMBER CA3162E CA3162AE TEMP. RANGE (oC) 0 to 70 -40 to 85 PACKAGE 16 Ld PDIP 16 Ld PDIP PKG. NO. E16.3 E16.3 Pinout CA3162 (PDIP) TOP VIEW BCD OUTPUTS 21 20 NSD 1 2 3 4 5 6 7 8 16 23 15 22 14 V+ BCD OUTPUTS DIGIT SELECT OUTPUTS MSD LSD 13 GAIN ADJ 12 INTEGRATING CAP HOLD/ BYPASS GND ZERO ADJ 11 HIGH INPUT 10 LOW INPUT 9 ZERO ADJ CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-...