MAX1157 Datasheet, PDF (1/15 Pages) Maxim Integrated Products – 14-Bit, 135ksps, Single-Supply ADCs with Bipolar Analog Input Range

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 ±10V. The MAX1175
accepts a bipolar analog input voltage range of ±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™ 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 (±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°C to +85°C extended temperature range and the
0°C to +70°C commercial temperature range.
Applications
Temperature Sensing and Monitoring
Industrial Process Control
I/O Modules
Data-Acquisition Systems
Precision Instrumentation
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
Features
o Analog Input Voltage Range ±10V, ±5V, or 0 to 10V
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 ±1LSB INL (max)
o ±1LSB DNL (max)
o Low Supply Current (MAX1159)
5.3mA (External Reference)
6.2mA (Internal Reference)
5µA AutoShutdown Mode
o Small Footprint
28-Pin TSSOP Package
Pin Configuration
TOP VIEW
D6 1
D7 2
D8 3
D9 4
D10 5
D11 6
D12 7
D13 8
R/C 9
EOC 10
AV_DD 11
AGND 12
AIN 13
AGND 14
MAX1157
MAX1159
MAX1175
TSSOP
28 D5
27 D4
26 D3
25 D2
24 D1
23 D0
22 N.C.
21 N.C.
20 DV_DD
19 DGND
18 CS
17 RESET
16 REF
15 REFADJ
PART
TEMP RANGE
PIN-PACKAGE
MAX1157ACUI
0°C to +70°C
MAX1157BCUI
0°C to +70°C
Ordering Information continued at end of data sheet.
28 TSSOP
28 TSSOP
Ordering Information
INPUT VOLTAGE
RANGE
0 to +10V
0 to +10V
INL (LSB)
±1
±2
________________________________________________________________ Maxim Integrated Products 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.