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Maxim Integrated Products - Octal / 12-Bit / 50Msps / 1.8V ADC with Serial LVDS Outputs

Numéro de référence MAX1437
Description Octal / 12-Bit / 50Msps / 1.8V ADC with Serial LVDS Outputs
Fabricant Maxim Integrated Products 
Logo Maxim Integrated Products 





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MAX1437 fiche technique
19-3645; Rev 0; 4/05
EVAALVUAAILTAIOBNLEKIT
Octal, 12-Bit, 50Msps, 1.8V ADC
with Serial LVDS Outputs
General Description
The MAX1437 octal, 12-bit analog-to-digital converter
(ADC) features fully differential inputs, a pipelined
architecture, and digital error correction incorporating a
fully differential signal path. This ADC is optimized for
low-power and high-dynamic performance in medical
imaging instrumentation and digital communications
applications. The MAX1437 operates from a 1.8V single
supply and consumes only 768mW (96mW per chan-
nel) while delivering a 69.9dB (typ) signal-to-noise ratio
(SNR) at a 5.3MHz input frequency. In addition to low
operating power, the MAX1437 features a power-down
mode for idle periods.
An internal 1.24V precision bandgap reference sets the
full-scale range of the ADC. A flexible reference struc-
ture allows the use of an external reference for applica-
tions requiring increased accuracy or a different input
voltage range. The reference architecture is optimized
for low noise.
A single-ended clock controls the data-conversion
process. An internal duty-cycle equalizer compensates
for wide variations in clock duty cycle. An on-chip PLL
generates the high-speed serial low-voltage differential
signal (LVDS) clock.
The MAX1437 has self-aligned serial LVDS outputs for
data, clock, and frame-alignment signals. The output
data is presented in two’s complement or binary format.
The MAX1437 offers a maximum sample rate of 50Msps.
See the Pin-Compatible Versions table below for higher-
and lower-speed versions. This device is available in a
small, 14mm x 14mm x 1mm, 100-pin TQFP package
with exposed paddle and is specified for the extended
industrial (-40°C to +85°C) temperature range.
Applications
Ultrasound and Medical Imaging
Instrumentation
Multichannel Communications
Features
Excellent Dynamic Performance
69.9dB SNR at 5.3MHz
96dBc SFDR at 5.3MHz
95dB Channel Isolation
Ultra-Low Power
96mW per Channel (Normal Operation)
Serial LVDS Outputs
Pin-Selectable LVDS/SLVS (Scalable Low-Voltage
Signal) Mode
LVDS Outputs Support Up to 30 Inches FR-4
Backplane Connections
Test Mode for Digital Signal Integrity
Fully Differential Analog Inputs
Wide Differential Input Voltage Range (1.4VP-P)
On-Chip 1.24V Precision Bandgap Reference
Clock Duty-Cycle Equalizer
Compact, 100-Pin TQFP Package with Exposed
Paddle
Evaluation Kit Available (Order MAX1437EVKIT)
Ordering Information
PART
TEMP RANGE
MAX1437ECQ -40°C to +85°C
*EP = Exposed paddle.
PIN-PACKAGE
100 TQFP-EP*
(14mm x 14mm x 1mm)
Pin-Compatible Versions
PART
MAX1434
SAMPLING RATE
(Msps)
50
RESOLUTION
(BITS)
10
MAX1436
MAX1438**
40
65
12
12
**Future product—contact factory for availability.
Pin Configuration appears at the end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

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