| Resolution (Bits) | 8 |
| Number of input channels | 1 |
| Sample rate (Max) (kSPS) | 400 |
| Interface type | Parallel |
| Architecture | SAR |
| Input type | Single-Ended |
| Rating | Catalog |
| Reference mode | Ext |
| Input range (Max) (V) | 8 |
| Input range (Min) (V) | 0 |
| Operating temperature range (C) | 0 to 70 |
| Power consumption (Typ) (mW) | 37.5 |
| Analog voltage AVDD (Min) (V) | 4.5 |
| Analog voltage AVDD (Max) (V) | 8 |
| INL (Max) (+/-LSB) | 1 |
| Digital supply (Min) (V) | 4.5 |
| Digital supply (Max) (V) | 8 |
- Advanced LinCMOSTM Silicon-Gate Technology
- 8-Bit Resolution
- Differential Reference Inputs
- Parallel Microprocessor Interface
- Conversion and Access Time Over Temperature Range
Read Mode . . . 2.5 us Max - No External Clock or Oscillator Components Required
- On-Chip Track and Hold
- Single 5-V Supply
- TLC0820A Is Direct Replacement for National Semiconductor ADC0820C/CC and Analog Devices AD7820K/B/T
Advanced LinCMOS is a trademark of Texas Instruments Incorporated.
The TLC0820AC and the TLC0820AI are Advanced LinCMOSTM 8-bit analog-to-digital converters each consisting of two 4-bit flash converters, a 4-bit digital-to-analog converter, a summing (error) amplifier, control logic, and a result latch circuit. The modified flash technique allows low-power integrated circuitry to complete an 8-bit conversion in 1.18 us over temperature. The on-chip track-and-hold circuit has a 100-ns sample window and allows these devices to convert continuous analog signals having slew rates of up to 100 mV/us without external sampling components. TTL-compatible 3-state output drivers and two modes of operation allow interfacing to a variety of microprocessors. Detailed information on interfacing to most popular microprocessors is readily available from the factory.