MAX11044_11 Datasheet, PDF (1/27 Pages) Maxim Integrated Products – 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs

19-5036; Rev 5; 1/11
EVAALVUAAILTAIOBNLEKIT
4-/6-/8-Channel, 16-/14-Bit,
Simultaneous-Sampling ADCs
General Description
The MAX11044/MAX11045/MAX11046 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 pro-
vide simultaneous sampling at 250ksps for each channel.
The MAX11044/MAX11045/MAX11046 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/MAX11045/MAX11046 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/MAX11045/MAX11046
are available in a 56-pin TQFN and 64-pin TQFP pack-
ages 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
Functional Diagram
Features
o 16-Bit ADC (MAX11044/MAX11045/MAX11046) and
14-Bit ADC (MAX11054/MAX11055/MAX11056)
8-Channel ADC (MAX11046/MAX11056)
6-Channel ADC (MAX11045/MAX11055)
4-Channel ADC (MAX11044/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
AVDD
CH0
CLAMP
S/H
16-/14-BIT ADC
DVDD
DB15**
CH7†
CLAMP
S/H
16-/14-BIT ADC
AGNDS
AGND
MAX11044/MAX11045/MAX11046/
MAX11054/MAX11055/MAX11056
INT REF
10kΩ
BANDGAP
REF
REFERENCE
BUF
REFIO
EXT REF
CONFIGURATION
REGISTERS
INTERFACE
AND
CONTROL
DB4
DB3/CR3
DB0/CR0
WR
RD
CS
CONVST
SHDN
EOC
DGND
RDC
RDC_SENSE*
*CONNECTED INTERNALLY TO RDC ON THE TQFN PARTS
**MAX11044/MAX11045/MAX11046
†MAX11046/MAX11056
PART
PIN-PACKAGE
CHANNELS
MAX11044ETN+
56 TQFN-EP*
4
MAX11044ECB+
64 TQFP-EP*
4
MAX11045ETN+
56 TQFN-EP*
6
MAX11045ECB+
64 TQFP-EP*
6
MAX11046ETN+
56 TQFN-EP*
8
MAX11046ECB+
64 TQFP-EP*
8
MAX11054ECB+
64 TQFP-EP*
4
MAX11055ECB+
64 TQFP-EP*
6
MAX11056ECB+
64 TQFP-EP*
8
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.
Pin Configurations appear at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.