MAX116

19-1928; Rev 0; 1/01 KIT ATION EVALU E L B A AVAIL 2x4-Channel, Simultaneous-Sampling 12-Bit ADCs ____________________________Features o Four Simultaneous-Sampling T/H Amplifiers with Two Multiplexed Inputs (Eight Single-Ended Inputs Total) o 2µs Conversion Time per Channel o Throughput: 390ksps (1 Channel) 218ksps (2 Channels) 152ksps (3 Channels) 116ksps (4 Channels) o Input Range: ± 5V (MAX115) ± 2.5V (MAX116) o Fault-Protected Input Multiplexer (±17V) o Internal +2.5V or External Reference Operation o Programmable On-Board Sequencer o High-Speed Parallel DSP Interface o Internal 10MHz Clock ________________General Description The MAX115/MAX116 are high-speed, multichannel, 12-bit data-acquisition systems (DAS) with simultaneous track/holds (T/Hs). These devices contain a 12-bit, 2µs, successive-approximation analog-to-digital converter (ADC), a +2.5V reference, a buffered reference input, and a bank of four simultaneous-sampling T/H amplifiers that preserve the relative phase information of the sampled inputs. The MAX115/MAX116 have two multiplexed inputs for each T/H, allowing a total of eight inputs. In addition, the converter is overvoltage tolerant to ±17V. A fault condition on any channel will not damage the IC. Available input ranges are ±5V (MAX115) and ±2.5V (MAX116). The parallel interface’s data access and bus release timing specifications are compatible with most popular digital signal processors and 16-bit/32-bit microprocessors. The MAX115/MAX116 conversio...