ADC78H89CIMTX/NOPB

The ADC78H89CIMTX/NOPB is a low-power, 7-channel CMOS 12-bit analog-to-digital converter from Texas Instruments, with a conversion throughput of 500 kSPS. It is based on a successive-approximation register (SAR) architecture with an internal track-and-hold circuit. The device can accept up to seven input signals on pins AIN1 through AIN7. The output serial data is straight binary and compatible with SPI, QSPI, MICROWIRE, and DSP serial interfaces.

Key specifications include a resolution of 12 bits, a maximum sample rate of 500 kSPS, differential nonlinearity of ±1 LSB (max), integral nonlinearity of ±1 LSB (max), and a signal-to-noise ratio of 72.8 dB. The power consumption is typically 1.5 mW at 3V supply and 8.3 mW at 5V supply. The analog supply voltage range is 2.7V to 5.25V, and the digital supply voltage range is 2.7V to 5.25V. The input voltage range is 0V to 5.25V. The device operates over the industrial temperature range of -40°C to 85°C.

The ADC78H89 is designed for applications requiring multiple analog input channels and moderate sampling rates. It features variable power management and independent analog and digital supplies. The converter is packaged in a 16-lead TSSOP (5 mm × 6.4 mm) for surface mount assembly. This device is RoHS3 compliant (unverified) and has a moisture sensitivity level of 1.