The AD7606BSTZ-RL is a 16-bit, simultaneous sampling, analog-to-digital data acquisition system (DAS) with eight channels, each channel containing analog input clamp protection, a programable gain amplifier (PGA), a low-pass filter, and a 16-bit successive approximation register (SAR), analog-to-digital converter (ADC). The AD7606BSTZ-RL also contains a flexible digital filter, low drift, 2.5 V precision reference and reference buffer to drive the ADC and flexible parallel and serial interfaces.

The AD7606BSTZ-RL operates from a single 5 V supply and accommodates ±10 V, ±5 V, and ±2.5 V true bipolar input ranges when sampling at throughput rates of 800 kSPS for all channels. The input clamp protection tolerates voltages up to ±21 V. The AD7606BSTZ-RL has a 5 MΩ analog input impedance, resulting in less than 20 LSB bipolar zero code when the input signal is disconnected and pulled to ground through a 10 kΩ external resistor. The single supply operation, on-chip filtering, and high input impedance eliminates the need for external driver op amps, which require bipolar supplies. For applications with lower throughput rates, the AD7606BSTZ-RL flexible digital filter can be used to improve noise performance.

In hardware mode, the AD7606BSTZ-RL is fully compatible with the AD7606. In software mode, the following advanced features are available:

• Additional ±2.5 V analog input range.

• Analog input range (±10 V, ±5 V, and ±2.5 V), selectable per channel.

• Additional oversampling (OS) options, up to OS × 256.

• System gain, system offset, and system phase calibration per channel.

• Analog input open circuit detector.

• Diagnostic multiplexer.

• Monitoring functions (serial peripheral interface (SPI) invalid read/write, cyclic redundancy check (CRC), overvoltage and undervoltage events, busy stuck monitor,and reset detection).

Note that throughout this data sheet, multifunction pins, such as the RD/SCLK pin, are referred to either by the entire pin name or by a single function of the pin, for example, the SCLK pin, when only that function is relevant.

Feature

Applications