19-2653; Rev 1; 1/03
14-Bit, 135ksps, Single-Supply ADCs with
Bipolar Analog Input Range
General Description
The MAX1157/MAX1159/MAX1175 14-bit, low-power,
successive-approximation analog-to-digital converters
(ADCs) feature automatic power-down, a factory-trimmed
internal clock, and a 14-bit wide parallel interface. The
devices operate from a single +4.75V to +5.25V analog
supply and feature a separate digital supply input for
direct interface with +2.7V to +5.25V digital logic.
The MAX1157 accepts an analog input voltage range
from 0 to +10V while the MAX1159 accepts a bipolar
analog input voltage range of 鹵10V. The MAX1175
accepts a bipolar analog input voltage range of 鹵5V.
All devices consume only 23mW at a sampling rate
of 135ksps when using an external reference and
29mW when using the internal +4.096V reference.
AutoShutdown鈩?reduces supply current to 0.4mA at
10ksps. The MAX1157/MAX1159/MAX1175 are ideal for
high-performance, battery-powered data-acquisition
applications. Excellent AC performance (THD = -100dB)
and DC accuracy (鹵1LSB INL) make the MAX1157/
MAX1159/MAX1175 ideal for industrial process control,
instrumentation, and medical applications.
The MAX1157/MAX1159/MAX1175 are available in a
28-pin TSSOP package and are fully specified over the
-40擄C to +85擄C extended temperature range and the
0擄C to +70擄C commercial temperature range.
o
14-Bit Wide Parallel Interface
o
Single +4.75V to +5.25V Analog Supply Voltage
o
Interfaces with +2.7V to +5.25V Digital Logic
o
鹵1LSB INL (max)
o
鹵1LSB DNL (max)
o
Low Supply Current (MAX1159)
5.3mA (External Reference)
6.2mA (Internal Reference)
5碌A(chǔ) AutoShutdown Mode
o
Small Footprint
28-Pin TSSOP Package
Features
o
Analog Input Voltage Range 鹵10V, 鹵5V, or 0 to 10V
MAX1157/MAX1159/MAX1175
Pin Configuration
TOP VIEW
D6 1
D7 2
D8 3
D9 4
D10 5
28 D5
27 D4
26 D3
25 D2
24 D1
Applications
Temperature Sensing and Monitoring
Industrial Process Control
I/O Modules
Data-Acquisition Systems
Precision Instrumentation
D11 6
D12 7
D13 8
R/C 9
EOC 10
AV
DD
11
AGND 12
AIN 13
AGND 14
MAX1157
MAX1159
MAX1175
23 D0
22 N.C.
21 N.C.
20 DV
DD
19 DGND
18 CS
17 RESET
16 REF
15 REFADJ
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
TSSOP
Ordering Information
PART
MAX1157ACUI
MAX1157BCUI
TEMP RANGE
0擄C to +70擄C
0擄C to +70擄C
PIN-PACKAGE
28 TSSOP
28 TSSOP
INPUT VOLTAGE
RANGE
0 to +10V
0 to +10V
INL (LSB)
鹵1
鹵2
Ordering Information continued at end of data sheet.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.