4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs

The MAX11047/MAX11048/MAX11049 and MAX11057/MAX11058/MAX11059 16-bit/14-bit ADCs offer 4, 6, or 8 independent input channels. Featuring independent track and hold (T/H) and SAR circuitry, these parts provide simultaneous sampling at 250ksps for each channel.

The devices accept a 0 to +5V input. All inputs are overrange protected with internal ±20mA input clamps providing overrange protection with a simple external resistor. Other features include a 4MHz T/H input bandwidth, internal clock, and internal or external reference. A 20MHz, bidirectional, parallel interface provides the conversion results and accepts digital configuration inputs.

The devices operate with a 4.75V to 5.25V analog supply and a separate flexible 2.7V to 5.25V digital supply for interfacing with the host without a level shifter. The MAX11047/MAX11048/MAX11049 are available in a 56-pin TQFN and 64-pin TQFP packages while the MAX11057/MAX11058/MAX11059 are available in TQFP only. All devices operate over the extended -40°C to +85°C temperature range.

Applications

* Automatic Test Equipment * Multiphase Motor Control * Power-Factor Monitoring and Correction * Power-Grid Protection * Vibration and Waveform Analysis

* 16-Bit ADC (MAX11047/MAX11048/MAX11049)

* 14-Bit ADC (MAX11057/MAX11058/MAX11059)

* 4-Channel ADC (MAX11047/MAX11057)

* 6-Channel ADC (MAX11048/MAX11058)

* 8-Channel ADC (MAX11049/MAX11059)

* Single Analog and Digital Supply

* High-Impedance Inputs Up to 1GΩ

* On-Chip T/H Circuit for Each Channel

* Fast 3µs Conversion Time

* High Throughput: 250ksps for Each Channel

* 16-/14-Bit, High-Speed, Parallel Interface

* Internal Clocked Conversions

* 10ns Aperture Delay

* 100ps Channel-to-Channel T/H Matching

* Low Drift, Accurate 4.096V Internal Reference Providing an Input Range of 0 to 5V

* External Reference Range of 3.0V to 4.25V, Allowing Full-Scale Input Ranges of +3.7V to +5.2V

* 56-Pin TQFN (8mm x 8mm) and 64-Pin TQFP (10mm x 10mm) Packages

* Evaluation Kit Available (MAX11046EVKIT+)