Product Summary

The ICL7135CN is a 4 1/2-digit precision analog-to-digital converter. The ICL7135CN is manufactured with Texas Instruments highly efficient CMOS technology. This 4 1/2-digit, dual-slope-integrating, analog-to-digital converter (DAC) is designed to provide interfaces to both a microprocessor and a visual display. The digit-drive outputs D1 through D4 and multiplexed binary-coded decimal outputs B1, B2, B4, and B8 provide an interface for LED or LCD decoders/drivers as well as microprocessors. The ICL7135CN offers 50-ppm (one part in 20,000) resolution with a maximum linearity error of one count.

Parametrics

ICL7135CN absolute maximum ratings: (1)Supply voltage (VCC+ with respect to VCC–): 15 V; (2)Analog input voltage (IN– or IN+): VCC– to VCC+; (3)Reference voltage range: VCC– to VCC+; (4)Clock input voltage range: 0 V to VCC+; (5)Operating free-air temperature range, TA: 0℃ to 70℃; (6)Storage temperature range, Tstg: –65℃ to 150℃; (7)Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: N package: 260℃.

Features

ICL7135CN features: (1)Zero Reading for 0-V Input; (2)Precision Null Detection With True Polarity at Zero; (3)1-pA Typical Input Current; (4)True Differential Input; (5)Multiplexed Binary-Coded-Decimal (BCD) Output; (6)Low Rollover Error: ±1 Count Max; (7)Control Signals Allow Interfacing With UARTs or Microprocessors; (8)Autoranging Capability With Over-and Under-Range Signals; (9)TTL-Compatible Outputs; (10)Direct Replacement for Teledyne TSC7135, Intersil ICL7135, Maxim ICL7135, and Siliconix Si7135; (11)CMOS Technology.

Diagrams

ICL7135CN block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
ICL7135CN
ICL7135CN
Texas Instruments
ADC (A/D Converters) 4.5-Bits 0.003kSPS Muxed BCD Out
Data Sheet
0-1: $5.02
1-25: $4.28
25-100: $3.55
100-250: $3.42
ICL7135CNG4
ICL7135CNG4
Texas Instruments
ADC (A/D Converters) 4.5Bs 0.003kSPS ADC
Data Sheet
0-1: $5.28
1-25: $4.89
25-100: $3.55
100-250: $3.42