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MAX6721AUTWED1+T

Description
supervisory circuits dual upower supervisor
Categorysemiconductor    Other integrated circuit (IC)   
File Size419KB,22 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance  
Download Datasheet View All

MAX6721AUTWED1+T Overview

supervisory circuits dual upower supervisor

19-2524; Rev 1; 6/06
Dual 10-Bit, 120Msps, 3.3V, Low-Power ADC
with Internal Reference and Parallel Outputs
General Description
The MAX1190 is a 3.3V, dual 10-bit analog-to-digital con-
verter (ADC) featuring fully differential wideband track-
and-hold (T/H) inputs, driving two ADCs. The MAX1190 is
optimized for low power, small size, and high-dynamic
performance for applications in imaging, instrumentation,
and digital communications. This ADC operates from a
single 3.1V to 3.6V supply, consuming only 492mW while
delivering a typical signal-to-noise and distortion (SINAD)
of 57dB at an input frequency of 60MHz and a sampling
rate of 120Msps. The T/H driven input stages incorporate
400MHz (-3dB) input amplifiers. The converters can also
be operated with single-ended inputs. In addition to low
operating power, the MAX1190 features a 3mA sleep
mode, as well as a 1µA power-down mode to conserve
power during idle periods.
An internal 2.048V precision bandgap reference sets the
full-scale range of the ADC. A flexible reference structure
allows the use of this internal or an externally applied ref-
erence, if desired, for applications requiring increased
accuracy or a different input voltage range.
The MAX1190 features parallel, CMOS-compatible three-
state outputs. The digital output format can be set to two’s
complement or straight offset binary through a single con-
trol pin. The device provides for a separate output power
supply of 1.7V to 3.6V for flexible interfacing with various
logic families. The MAX1190 is available in a 7mm
7mm, 48-pin TQFP-EP package, and is specified for the
extended industrial (-40°C to +85°C) temperature range.
Pin-compatible lower speed versions of the MAX1190 are
also available. Refer to the MAX1180–MAX1184 data
sheets for 105Msps/80Msps/65Msps/40Msps. In addition
to these speed grades, this family includes two multi-
plexed output versions (MAX1185/MAX1186 for
20Msps/40Msps), for which digital data is presented time-
interleaved and on a single, parallel 10-bit output port.
For lower speed, pin-compatible, 8-bit versions of the
MAX1190, refer to the MAX1195–MAX1198 data sheets.
Features
Single 3.3V Operation
Excellent Dynamic Performance
57dB SINAD at f
IN
= 60MHz
64dBc SFDR at f
IN
= 60MHz
-71dBc Interchannel Crosstalk at f
IN
= 60MHz
Low Power
492mW (Normal Operation)
10mW (Sleep Mode)
3.3µW (Shutdown Mode)
0.08dB Gain and 0.8° Phase Matching
Wide ±1V
P-P
Differential Analog Input Voltage
Range
400MHz -3dB Input Bandwidth
On-Chip 2.048V Precision Bandgap Reference
User-Selectable Output Format—Two’s Complement
or Offset Binary
Pin-Compatible, Lower-Speed, 10-Bit and 8-Bit
Versions Available
MAX1190
Ordering Information
PART
MAX1190ECM
TEMP RANGE PIN-PACKAGE PKG CODE
-40°C to +85°C 48 TQFP-EP*
C48E-7
C48E-7
MAX1190ECM+ -40°C to +85°C 48 TQFP-EP*
*EP
= Exposed paddle.
+Denotes
lead-free package.
Pin Configuration
REFN
REFP
REFIN
REFOUT
D9A
D8A
D7A
D6A
D5A
D4A
D3A
D2A
48
47
46
45
44
43
42
41
40
39
38
COM
V
DD
GND
INA+
INA-
V
DD
GND
INB-
INB+
GND
V
DD
CLK
37
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
Applications
Baseband I/Q Sampling
Multichannel IF Sampling
Ultrasound and Medical Imaging
Battery-Powered Instrumentation
WLAN, WWAN, WLL, MMDS Modems
Set-Top Boxes
VSAT Terminals
Functional Diagram appears at end of data sheet.
MAX1190
30
29
28
27
26
25
D1A
D0A
OGND
OV
DD
OV
DD
OGND
D0B
D1B
D2B
D3B
D4B
D5B
EP
13
14
15
16
17
18
19
20
21
22
23
24
TQFP-EP
EP = EXPOSED PADDLE.
NOTE:
THE PIN 1 INDICATOR FOR LEAD-FREE PACKAGES IS REPLACED BY A “+”.
________________________________________________________________
Maxim Integrated Products
GND
V
DD
V
DD
GND
T/B
SLEEP
PD
OE
D9B
D8B
D7B
D6B
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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