MAX11047_11 Datasheet, PDF (1/25 Pages) Maxim Integrated Products – 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs

19-5106; Rev 2; 1/11
EVAALVUAAILTAIOBNLEKIT
4-/6-/8-Channel, 16-/14-Bit,
Simultaneous-Sampling ADCs
General Description
The MAX11047/MAX11048/MAX11049 and MAX11057/
MAX11058/MAX11059 16-bit/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 devices accept a 0 to +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 band-
width, internal clock, and internal or external reference.
A 20MHz, bidirectional, parallel interface provides the
conversion results and accepts digital configuration
inputs.
The devices 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
MAX11047/MAX11048/MAX11049 are available in a 56-pin
TQFN and 64-pin TQFP packages while the MAX11057/
MAX11058/MAX11059 are available in TQFP only. All
devices operate over the extended -40°C to +85°C tem-
perature range.
Applications
Automatic Test Equipment
Power-Factor Monitoring and Correction
Power-Grid Protection
Multiphase Motor Control
Vibration and Waveform Analysis
Ordering Information
PART
PIN-PACKAGE
CHANNELS
MAX11047ETN+
56 TQFN-EP*
4
MAX11047ECB+
64 TQFP-EP*
4
MAX11048ETN+
56 TQFN-EP*
6
MAX11048ECB+
64 TQFP-EP*
6
MAX11049ETN+
56 TQFN-EP*
8
MAX11049ECB+
64 TQFP-EP*
8
MAX11057ECB+
64 TQFP-EP*
4
MAX11058ECB+
64 TQFP-EP*
6
MAX11059ECB+
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.
Features
o 16-Bit ADC (MAX11047/MAX11048/MAX11049)
o 14-Bit ADC (MAX11057/MAX11058/MAX11059)
o 8-Channel ADC (MAX11047/MAX11057)
o 6-Channel ADC (MAX11048/MAX11058)
o 4-Channel ADC (MAX11049/MAX11059)
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-/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 0 to 5V
o External Reference Range of 3.0V to 4.25V,
Allowing Full-Scale Input Ranges of +3.7V to
+5.2V
o 56-Pin TQFN (8mm x 8mm) and 64-Pin TQFP
(10mm x 10mm) Packages
o Evaluation Kit Available (MAX11046EVKIT+)
Functional Diagram
AVDD
CH0
CLAMP
S/H
16-/14-BIT ADCs
CH7†
CLAMP
S/H
16-/14-BIT ADCs
AGNDS
AGND
MAX11047/MAX11048/MAX11049/
MAX11057/MAX11058/MAX11059
INT REF
10kΩ
BANDGAP
REF
REFERENCE
BUF
REFIO
EXT REF
CONFIGURATION
REGISTERS
INTERFACE
AND
CONTROL
DVDD
DB15**
DB4
DB3/CR3
DB0/CR0
WRb
RDb
CSb
CONVST
SHDN
EOCb
DGND
RDC
RDC_SENSE*
*CONNECTED INTERNALLY ON THE TQFN PARTS
**MAX11047/MAX11048/MAX11049
†MAX11049/MAX11059
________________________________________________________________ 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.