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MAX1080 Datasheet(PDF) 1 Page - Maxim Integrated Products

Part No. MAX1080
Description  300ksps/400ksps, Single-Supply, Low-Power, 8-Channel, Serial 10-Bit ADCs with Internal Reference
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX1080 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.
General Description
The MAX1080/MAX1081 10-bit analog-to-digital convert-
ers (ADCs) combine an 8-channel analog-input multiplex-
er, high-bandwidth track/hold (T/H), and serial interface
with high conversion speed and low power consumption.
The MAX1080 operates from a single +4.5V to +5.5V sup-
ply; the MAX1081 operates from a single +2.7V to +3.6V
supply. Both devices’ analog inputs are software config-
urable for unipolar/bipolar and single-ended/pseudo-dif-
ferential operation.
The 4-wire serial interface connects directly to
SPI™/QSPI™ and MICROWIRE™ devices without external
logic. A serial strobe output allows direct connection to
TMS320-family digital signal processors. The MAX1080/
MAX1081 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 VDD1 range may
also be used.
The MAX1080/MAX1081 provide a hard-wired 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. This technique can cut supply current below 100mA
at lower sampling rates.
The MAX1080/MAX1081 are available in a 20-pin TSSOP
package. These devices are higher-speed versions of the
MAX148/MAX149. For more information, refer to the
respective data sheet.
Applications
Portable Data Logging
Data Acquisition
Medical Instruments
Battery-Powered Instruments
Pen Digitizers
Process Control
Features
o 8-Channel Single-Ended or 4-Channel
Pseudo-Differential Inputs
o Internal Multiplexer and Track/Hold
o Single-Supply Operation
+4.5V to +5.5V (MAX1080)
+2.7V to +3.6V (MAX1081)
o Internal +2.5V Reference
o 400ksps Sampling Rate (MAX1080)
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 20-Pin TSSOP Package
300ksps/400ksps, Single-Supply, Low-Power,
8-Channel, Serial 10-Bit ADCs with Internal Reference
________________________________________________________________ Maxim Integrated Products
1
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
TOP VIEW
TSSOP
VDD1
VDD2
DIN
SSTRB
DOUT
GND
REFADJ
REF
COM
CH7
CH6
CH5
CH4
CH3
CH2
CH1
CH0
MAX1080
MAX1081
SHDN
CS
SCLK
19-1685; Rev 0; 5/00
PART
MAX1080ACUP
MAX1080BCUP
MAX1080AEUP
-40°C to +85°C
0°C to +70°C
0°C to +70°C
TEMP.
RANGE
PIN-
PACKAGE
20 TSSOP
20 TSSOP
20 TSSOP
Typical Operating Circuit appears at end of data sheet.
Pin Configuration
INL
(LSB)
±1/2
±1
±1/2
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
Ordering Information continued at end of data sheet.
Ordering Information


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