MAX11044_10 Datasheet, PDF (1/20 Pages) Maxim Integrated Products – 4-/6-/8-Channel, 16-Bit, Simultaneous-Sampling ADCs

19-5036; Rev 1; 3/10
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4-/6-/8-Channel, 16-Bit,
Simultaneous-Sampling ADCs
General Description
The MAX11044/MAX11045/MAX11046^† 16-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/MAX11045/MAX11046 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, 16-bit, bidirectional,
parallel interface provides the conversion results and
accepts digital configuration inputs.
The MAX11044/MAX11045/MAX11046 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 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
†_{Patent pending.}
Functional Diagram
AVDD
CH0
CLAMP
S/H
16-BIT ADC
DVDD
DB15
CH7
CLAMP
S/H
16-BIT ADC
AGNDs
AGND
MAX11044
MAX11045
MAX11046
REFIO
BANDGAP
REFERENCE
INT REF
REF
BUF
EXT REF
DB4
DB3
DB0
CONFIGURATION
REGISTERS
INTERFACE
AND
CONTROL
WR
RD
CS
CONVST
SHDN
EOC
RDC
DGND
Features
o 4-/6-/8-Channel 16-Bit ADC
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 All 8 Channels
o 16-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
MAX11045ETN+
56 TQFN-EP**
6
MAX11045ECB+* 64 TQFP-EP**
6
MAX11046ETN+
56 TQFN-EP**
8
MAX11046ECB+* 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.
*Future product—contact factory for availability.
**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.