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.

MAX11044, MAX11045, MAX11046: Functional Diagram

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Key Features

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

Applications/Uses

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

Parametric Specs

Part Number

Resolution
(bits)

Input Chan.

Conv. Rate
(ksps)

ADC Architecture

Data Bus

Diff/S.E. Input

Internal V_REF
(V)

External V_REF
(V)

Bipolar V_IN
(±V)

SNR
(dB)

THD
(dB)

INL
(±LSB)

Package/Pins

Budgetary
Price

ADC

max

nominal

min

max

See Notes

MAX11044

250

SAR

µP/16

S.E. Only

4.096

4.25

92.3

-105

0.4

TQFN/56

TQFP/64

$11.11 @1k

MAX11045

µP/16

92.3

-105

0.4

TQFN/56

TQFP/64

$10.17 @1k

MAX11046

µP/16

92.3

-105

0.4

TQFN/56

TQFP/64

$17.09 @1k

MAX11054

µP/14

85.2

-104

0.13

TQFP/64

$7.79 @1k

MAX11056

µP/14

85.2

-104

0.13

TQFP/64

$11.24 @1k

See All Precision ADCs (< 5Msps) (443)

Pricing Notes:

This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Design Resources

MAX11046EVKIT: Evaluation Kit for the MAX11044, MAX11045, MAX11046, MAX11047, MAX11048, and MAX11049

Technical Documents

Tutorial 4697 Overview of Industrial Motor Control Systems

Quality and Environmental Data

Request Reliability Report for: MAX11044 MAX11044B
Lead-Free Package Tin (Sn) Whisker Reports

Quality And Environmental

Device	Fab Process	Technology	Sample size	Rejects	FIT at 25°C	FIT at 55°C

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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