The AD7924/AD7914/AD7904 are high speed 12-, 10- and 8-bit successive-approximation ADCs respectively. The parts operate from a single 2.7 V to 5 V power supply and feature throughput rates of up to 1 MSPS. The EVAL-AD79X4CB can be used to evaluate all three ADCs. Accompanying each EVAL-AD79X4CB is a sample box containing AD7924, one AD7914, and one AD7904. Depending on the ADC required for evaluation, the user can place the required ADC in the socket on the EVAL-AD79X4CB.
Also included is a CD-ROM containing a Technical Note describing the evaluation board for the AD7924/AD7914/AD7904. Full details on the AD7924/AD7914/AD7904 are available in the AD7924/AD7914/AD7904 datasheet (pdf, 445,789 bytes) and this should be consulted in conjunction with this Technical Note when using the Evaluation Board.
On-board components include an AD780, which is a pin programmable +2.5 V or +3 V ultra high precision bandgap reference, REF192 +2.5 V Reference, the AD713, and AD712 op-amps. Interfacing to this board is through a 96-Way connector. This 96-Way connector is compatible with the Evaluation board controller (EVAL-CONTROL BRD2), which is also available from Analog Devices. External sockets are provided for REFIN, SCLK, DIN, DOUT and CS signals, two biased-up circuits for bipolar input signals and four sockets (Vin0 to Vin3) for the Analog input channels.
Included in the EVAL-AD79X4CB evaluation board package is software for controlling and evaluating the performance of the AD7924/AD7914/AD7904 when it is operated with the EVALUATION BOARD CONTROLLER. The EVAL-AD79X4CB Demonstration/Evaluation Software runs under Windows 95, 98, 2000 and NT. The user interface on the PC is via a dedicated program written especially for the EVAL-AD79X4.