MAX110 Maxim, MAX110 Datasheet
MAX110
Manufacturer Part Number
MAX110
Description
Low-Cost / 2-Channel / 14-Bit Serial ADCs
Manufacturer
Maxim
Datasheet
1.MAX110.pdf
(24 pages)
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The MAX110/MAX111 analog-to-digital converters
(ADCs) use an internal auto-calibration technique to
achieve 14-bit resolution plus overrange, with no exter-
nal components. Operating supply current is only
550µA (MAX110) and reduces to 4µA in power-down
mode, making these ADCs ideal for high-resolution bat-
tery-powered or remote-sensing applications. A fast
serial interface simplifies signal routing and opto-isola-
tion, saves microcontroller pins, and offers compatibility
with SPI™, QSPI™, and MICROWIRE™. The MAX110
operates with ±5V supplies, and converts differential
analog signals in the -3V to +3V range. The MAX111
operates with a single +5V supply and converts differ-
ential analog signals in the ±1.5V range, or single-
ended signals in the 0V to +1.5V range.
Internal calibration allows for both offset and gain-error
correction under microprocessor (µP) control. Both
devices are available in space-saving 16-pin DIP and
SO packages, as well as an even smaller 20-pin SSOP
package.
________________________Applications
SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp.
19-0283; Rev 5; 11/98
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
( ) ARE FOR MAX111
Process Control
Weigh Scales
Panel Meters
Data-Acquisition Systems
Temperature Measurement
Typical Operating Circuit
Low-Cost, 2-Channel, ±14-Bit Serial ADCs
________________________________________________________________ Maxim Integrated Products
General Description
IN1+
IN1-
IN2+
IN2-
REF+
REF-
MAX110
MAX111
-5V (0V)
(AGND)
V
+5V
V
SS
DD
RCSEL
DOUT
SCLK
DIN
CS
FROM C
____________________________Features
Ordering Information continued at end of data sheet.
*
MAX110ACPE
MAX110BCPE
MAX110ACWE
MAX110BCWE
MAX110ACAP
MAX110BCAP
MAX110BC/D
Pin Configurations continued at end of data sheet.
Contact factory for dice specifications.
Single +5V Supply (MAX111)
Two Differential Input Channels
14-Bit Resolution Plus Sign and Overrange
0.03% Linearity (MAX110)
0.05% Linearity (MAX111)
Low Power Consumption:
Up to 50 Conversions/sec
50Hz/60Hz Rejection
Auto-Calibration Mode
No External Components Required
16-Pin DIP/SO, 20-Pin SSOP
TOP VIEW
550µA (MAX110)
640µA (MAX111)
4µA Shutdown Current
PART
( ) ARE FOR MAX111
RCSEL
XCLK
SCLK
BUSY
REF+
REF-
IN1+
V
DD
1
2
3
4
5
6
7
8
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
Ordering Information
MAX110
MAX111
DIP/SO
Pin Configurations
PIN-PACKAGE
16 Plastic DIP
16 Plastic DIP
16 Wide SO
16 Wide SO
20 SSOP
20 SSOP
Dice*
16
15
14
13
12
11
10
9
IN1-
IN2+
IN2-
V
GND
DIN
DOUT
CS
SS
(AGND)
INL(%)
±0.03
±0.05
±0.03
±0.05
±0.03
±0.05
±0.05
1
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