TI has developed an improved version of the industry standard ADC083x family of 8-bit Analog to Digital Converters. These replacements have been upgraded to allow a faster conversion clock. Previous versions of this family support a conversion clock up to 400 kHz, but the new TLC083x family is specified up to 600 kHz. This reduces the conversion time to 13 µs minimum, a 33% reduction over comparable versions.
The TLC083x family is available in 1, 2, 4 or 8 input versions as designated by the last digit of the device number. The 2, 4 or 8 input versions are software configurable for single-ended or differential inputs. All versions are specified to have total unadjusted error of ±1 LSB and require no full scale or zero error adjustments. These ADCs are easily interfaced to microcontrollers and microprocessors using a serial output data format. The serial data output is ideal for remote sensing applications using a digital data link. The digital I/O pins are TTL and CMOS compatible. Fabricated in a CMOS process, a single
5-V supply is required to operate the device, and it draws only 1 mA typical (2.5 mA max). The ADC can be operated ratiometrically using VCC or can be fixed to a 5 V precision reference. This family of devices is available in the surface mount (SOIC) and standard (DIP) packages.
Vol 18, August, 1996
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