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

The MAX11044/MAX11044B/MAX11045/MAX11045B/MAX11046/MAX11046B 16-bit and MAX11054/MAX11055/MAX11056 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 MAX11044/MAX11044B/MAX11045/MAX11045B/MAX11046/MAX11046B and MAX11054/MAX11055/MAX11056 accept a ±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 MAX11044/MAX11044B/MAX11045/MAX11045B/MAX11046/MAX11046B and MAX11054/MAX11055/MAX11056 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 MAX11044/MAX11044B/MAX11045/MAX11045B/MAX11046/MAX11046B are available in a 56-pin TQFN and 64-pin TQFP packages while the MAX11054/MAX11055/MAX11056 are available in TQFP only and 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 (MAX11044/MAX11044B/MAX11045/MAX11045B/MAX11046/MAX11046B) and 14-Bit ADC (MAX11054/MAX11055/MAX11056)

* 8-Channel ADC (MAX11046/MAX11046B/MAX11056)

* 6-Channel ADC (MAX11045/MAX11045B/MAX11055)

* 4-Channel ADC (MAX11044/MAX11044B/MAX11054)

* 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-Bit/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 ±5V

* External Reference Range of 3.0V to 4.25V, Allowing Full-Scale Input Ranges of ±4.0V to ±5.2V

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

* Evaluation Kit Available