ADS8406IBPFBT

The ADS8406IBPFBT is a 16-bit analog-to-digital converter (ADC) from Texas Instruments based on a successive approximation register (SAR) architecture. It achieves a maximum sampling rate of 1.25 MSPS and accepts a single differential input with a pseudo-bipolar range from -VREF to VREF. The device includes an internal 4.096 V reference and also supports an external reference mode.

Key electrical characteristics include 90 dB signal-to-noise ratio and -95 dB total harmonic distortion at a 100 kHz input, with a typical power consumption of 155 mW at 1.25 MSPS. Integral nonlinearity is ±2 LSB maximum, and differential nonlinearity ranges from -1 LSB to +1.25 LSB. The analog supply operates from 4.75 V to 5.25 V, while the digital I/O supply accepts 2.7 V to 5.25 V.

The converter offers a byte-wide parallel interface, including a 16-bit interface and an 8-bit option where data is read in two 8-bit cycles. It is suited for high-speed, high-resolution, zero-latency data acquisition systems, and is used in applications such as DWDM instrumentation, transducer interfaces, medical instruments, and communications. The device also includes an oscillator feature.

Packaged in a 48-pin TQFP (PFB) with a 9 mm × 9 mm body, the ADS8406IBPFBT is designed for surface-mount assembly. It operates over a temperature range of -40°C to +85°C.