EVALUATION KIT AVAILABLE
MAX11044/MAX11044B/MAX11045/
MAX11045B/MAX11046/MAX11046B/
MAX11054/MAX11055/MAX11056
4-/6-/8-Channel, 16-/14-Bit,
Simultaneous-Sampling ADCs
General Description
Features
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.
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)
The MAX11044/MAX11044B/MAX11045/MAX11045B/
MAX11046/MAX11046B and MAX11054/MAX11055/
MAX11056 accept a 5ꢀ 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.
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
The MAX11044/MAX11044B/MAX11045/MAX11045B/
MAX11046/MAX11046B and MAX11054/MAX11055/
MAX11056 operate with a 4.75ꢀ to 5.25ꢀ analog supply and
a separate flexible 2.7ꢀ to 5.25ꢀ 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.
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
Applications
o 56-Pin (8mm x 8mm) TQFN and 64-Pin
Automatic Test Equipment
(10mm x 10mm) TQFP Packages
Power-Factor Monitoring and Correction
Power-Grid Protection
o Evaluation Kit Available
Multiphase Motor Control
ꢀibration and Waveform Analysis
Functional Diagram
AVDD
CH0
DVDD
Ordering Information
DB15**
16-/14-BIT ADC
16-/14-BIT ADC
CLAMP
CLAMP
S/H
S/H
PART
PIN-PACKAGE
56 TQFN-EP*
64 TQFP-EP*
56 TQFN-EP*
64 TQFP-EP*
56 TQFN-EP*
64 TQFP-EP*
56 TQFN-EP*
64 TQFP-EP*
CHANNELS
MAX11044ETN+
MAX11044ECB+
MAX11044BETN+
MAX11044BECB+
MAX11045ETN+
MAX11045ECB+
MAX11045BETN+
MAX11045BECB+
4
4
4
4
6
6
6
6
DB4
DB3/CR3
†
DB0/CR0
CH7
CONFIGURATION
REGISTERS
WR
AGNDS
AGND
RD
CS
INTERFACE
AND
CONTROL
CONVST
SHDN
EOC
MAX11044/MAX11044B/
MAX11045/MAX11045B/
MAX11046/MAX11046B
MAX11054/MAX11055/MAX11056
DGND
RDC
Ordering Information continued at end of data sheet.
INT REF
10kΩ
BANDGAP
REFERENCE
REF
BUF
Note: All devices are specified over the -40°C to +85°C operating
temperature range.
EXT REF
REFIO
RDC_SENSE*
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
**MAX11044/MAX11045/MAX11046
MAX11046/MAX11056
†
*CONNECTED INTERNALLY TO RDC ON THE TQFN PARTS
Pin Configurations appear at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-5036; Rev 6; 5/13