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MAX1282 Datasheet(PDF) 1 Page - Maxim Integrated Products

Part No. MAX1282
Description  300ksps/400ksps, Single-Supply, 4-Channel, Serial 12-Bit ADCs with Internal Reference
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Maker  MAXIM [Maxim Integrated Products]
Homepage  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX1282 Datasheet(HTML) 1 Page - Maxim Integrated Products

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For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
300ksps/400ksps, Single-Supply, 4-Channel,
Serial 12-Bit ADCs with Internal Reference
________________________________________________________________ Maxim Integrated Products
1
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
VDD1
VDD2
SCLK
DIN
SSTRB
CS
DOUT
GND
REFADJ
TOP VIEW
MAX1282/
MAX1283
TSSOP
CH0
CH1
COM
CH2
CH3
SHDN
REF
19-1688; Rev 0; 5/00
Typical Operating Circuit appears at end of data sheet.
Pin Configuration
Ordering Information
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
General Description
The MAX1282/MAX1283 12-bit analog-to-digital convert-
ers (ADCs) combine a 4-channel analog-input multiplexer,
high-bandwidth track/hold (T/H), and serial interface with
high conversion speed and low power consumption. The
MAX1282 operates from a single +4.5V to +5.5V supply;
the MAX1283 operates from a single +2.7V to +3.6V sup-
ply. Both devices’ analog inputs are software configurable
for unipolar/bipolar and single-ended/pseudo-differential
operation.
The 4-wire serial interface connects directly to
SPI™/QSPI™/MICROWIRE™ devices without external
logic. A serial strobe output allows direct connection to
TMS320-family digital signal processors. The MAX1282/
MAX1283 use an external serial-interface clock to perform
successive-approximation analog-to-digital conversions.
The devices feature an internal +2.5V reference and a ref-
erence-buffer amplifier with a ±1.5% voltage-adjustment
range. An external reference with a 1V to VDD range may
also be used.
The MAX1282/MAX1283 provide a hardwired SHDN pin
and four software-selectable power modes (normal opera-
tion, reduced power (REDP), fast power-down (FASTPD),
and full power-down (FULLPD)). These devices can be
programmed to automatically shut down at the end of a
conversion or to operate with reduced power. When using
the power-down modes, accessing the serial interface
automatically powers up the devices, and the quick turn-
on time allows them to be shut down between all conver-
sions.
The MAX1282/MAX1283 are available in 16-pin TSSOP
packages.
Applications
Portable Data Logging
Data Acquisition
Medical Instruments
Battery-Powered Instruments
Pen Digitizers
Process Control
Features
o 4-Channel Single-Ended or 2-Channel
Pseudo-Differential Inputs
o Internal Multiplexer and Track/Hold
o Single-Supply Operation
+4.5V to +5.5V (MAX1282)
+2.7V to +3.6V (MAX1283)
o Internal +2.5V Reference
o 400kHz Sampling Rate (MAX1282)
o Low Power: 2.5mA (400ksps)
1.3mA (REDP)
0.9mA (FASTPD)
2µA (FULLPD)
o SPI/QSPI/MICROWIRE/TMS320-Compatible 4-Wire
Serial Interface
o Software-Configurable Unipolar or Bipolar Inputs
o 16-Pin TSSOP Package
±1
16 TSSOP
0°C to +70°C
MAX1283BCUE
±1
16 TSSOP
-40°C to +85°C
MAX1283BEUE
±1
16 TSSOP
-40°C to +85°C
MAX1282BEUE
INL
(LSB)
PIN-
PACKAGE
TEMP.
RANGE
PART
±1
16 TSSOP
0°C to +70°C
MAX1282BCUE


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