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MAX1126 Datasheet(Fiches technique) 1 Page - Maxim Integrated Products

Numéro de pièce MAX1126
Description  Quad, 12-Bit, 40Msps, 1.8V ADC with Serial LVDS Outputs
Télécharger  25 Pages
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Fabricant  MAXIM [Maxim Integrated Products]
Site Internet  http://www.maxim-ic.com
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General Description
The MAX1126 quad, 12-bit analog-to-digital converter
(ADC) features fully differential inputs, a pipelined
architecture, and digital error correction. This ADC is
optimized for low-power, high-dynamic performance for
medical imaging, communications, and instrumentation
applications. The MAX1126 operates from a 1.7V to
1.9V single supply and consumes only 563mW while
delivering a 69.9dB signal-to-noise ratio (SNR) at a
5.3MHz input frequency. In addition to low operating
power, the MAX1126 features an 813µA power-down
mode for idle periods.
An internal 1.24V precision bandgap reference sets the
ADC’s full-scale range. A flexible reference structure
allows the use of an external reference for applications
requiring increased accuracy or a different input volt-
age range.
A single-ended clock controls the conversion process.
An internal duty-cycle equalizer allows for wide varia-
tions in input-clock duty cycle. An on-chip phase-
locked loop (PLL) generates the high-speed serial
low-voltage differential signaling (LVDS) clock.
The MAX1126 provides serial LVDS outputs for data,
clock, and frame alignment signals. The output data is
presented in two’s complement or binary format.
Refer to the MAX1127 data sheet for a pin-compatible
65Msps version of the MAX1126.
The MAX1126 is available in a small, 10mm x 10mm x
0.9mm, 68-pin QFN package with exposed paddle and
is specified for the extended industrial (-40°C to +85°C)
temperature range.
Applications
Ultrasound and Medical Imaging
Positron Emission Tomography (PET) Imaging
Multichannel Communication Systems
Instrumentation
Features
♦ Four ADC Channels with Serial LVDS/SLVS
Outputs
♦ Excellent Dynamic Performance
69.9dB SNR at fIN = 5.3MHz
93.7dBc SFDR at fIN = 5.3MHz
-90dB Channel Isolation
♦ Ultra-Low Power
135mW per Channel (Normal Operation)
1.5mW Total (Shutdown Mode)
♦ Accepts 20% to 80% Clock Duty Cycle
♦ Self-Aligning Data-Clock to Data-Output Interface
♦ Fully Differential Analog Inputs
♦ Wide ±1.4VP-P Differential Input Voltage Range
♦ Internal/External Reference Option
♦ Test Mode for Digital Signal Integrity
♦ LVDS Outputs Support Up to 30in FR-4 Backplane
Connections
♦ Small, 68-Pin QFN with Exposed Paddle
♦ Evaluation Kit Available (MAX1127EVKIT)
Quad, 12-Bit, 40Msps, 1.8V ADC with
Serial LVDS Outputs
________________________________________________________________ Maxim Integrated Products
1
Ordering Information
19-3143; Rev 1; 3/04
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.
EVALUATION
KIT
AVAILABLE
PART
TEMP RANGE
PIN-PACKAGE
MAX1126EGK
-40°C to +85°C
68 QFN 10mm x
x 10mm x 0.9mm
35 OUT3N
36 OUT3P
37 OVDD
38 OUT2N
39 OUT2P
40 OVDD
41 FRAMEN
42 FRAMEP
43 OVDD
44 CLKOUTN
45 CLKOUTP
46 OVDD
47 OUT1N
48 OUT1P
49 OVDD
50 OUT0N
51 OUT0P
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
1
GND
2
IN0P
3
IN0N
4
GND
5
IN1P
6
IN1N
7
GND
8
AVDD
9
AVDD
10
AVDD
11
GND
12
IN2P
13
IN2N
14
GND
15
IN3P
16
IN3N
17
GND
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
MAX1126
QFN
10mm x 10mm x 0.9mm
EP
Pin Configuration




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