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ManualsBrandsMAXIM INTEGRATED ManualsData collecting ICsData acquisition IC - AD converter (ADC) External , Internal TQFP 64 EP
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19-5036; Rev 6; 5/13
MAX11044/MAX11044B/MAX11045/
MAX11045B/MAX11046/MAX11046B/
MAX11054/MAX11055/MAX11056
4-/6-/8-Channel, 16-/14-Bit,
Simultaneous-Sampling ADCs
EVALUATION KIT AVAILABLE
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
General Description
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 pro-
tected with internal ±20mA input clamps providing over-
range 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
Power-Factor Monitoring and Correction
Power-Grid Protection
Multiphase Motor Control
Vibration and Waveform Analysis
Features
o 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)
o Single Analog and Digital Supply
o High-Impedance Inputs Up to 1GΩ
o On-Chip T/H Circuit for Each Channel
o Fast 3µs Conversion Time
o High Throughput: 250ksps for Each Channel
o 16-Bit/14-Bit, High-Speed, Parallel Interface
o Internal Clocked Conversions
o 10ns Aperture Delay
o 100ps Channel-to-Channel T/H Matching
o Low Drift, Accurate 4.096V Internal Reference
Providing an Input Range of ±5V
o External Reference Range of 3.0V to 4.25V,
Allowing Full-Scale Input Ranges of ±4.0V to ±5.2V
o 56-Pin (8mm x 8mm) TQFN and 64-Pin
(10mm x 10mm) TQFP Packages
o Evaluation Kit Available
Ordering Information
PART
PIN-PACKAGE
CHANNELS
MAX11044ETN+ 56 TQFN-EP* 4
MAX11044ECB+ 64 TQFP-EP* 4
MAX11044BETN+
56 TQFN-EP* 4
MAX11044BECB+
64 TQFP-EP* 4
MAX11045ETN+ 56 TQFN-EP* 6
MAX11045ECB+ 64 TQFP-EP* 6
MAX11045BETN+
56 TQFN-EP* 6
MAX11045BECB+
64 TQFP-EP* 6
Note: All devices are specified over the -40°C to +85°C operating
temperature range.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
*
EP = Exposed pad.
Functional Diagram
CLAMP
S/H
16-/14-BIT ADC
CLAMP S/H
16-/14-BIT ADC
REF
BUF
CONFIGURATION
REGISTERS
INTERFACE
AND
CONTROL
BANDGAP
REFERENCE
8 x 16-/14-BIT REGISTERS
BIDIRECTIONAL DRIVERS
CH0
AVDD
AGNDS
AGND
CH7
†
DB15**
DB0/CR0
DB3/CR3
DB4
EOC
SHDN
CONVST
CS
RD
WR
DGND
DVDD
RDC
RDC_SENSE*
**MAX11044/MAX11045/MAX11046
†
MAX11046/MAX11056
REFIO
INT REF
10kΩ
EXT REF
*CONNECTED INTERNALLY TO RDC ON THE TQFN PARTS
MAX11044/MAX11044B/
MAX11045/MAX11045B/
MAX11046/MAX11046B
MAX11054/MAX11055/MAX11056
Pin Configurations appear at end of data sheet.
Ordering Information continued at end of data sheet.

Summary of content (28 pages)