MAX157 Maxim, MAX157 Datasheet
MAX157
Manufacturer Part Number
MAX157
Description
Dual-Channel CardBus and PCMCIA VCC/VPP Power-Switching Networks
Manufacturer
Maxim
Datasheet
1.MAX157.pdf
(16 pages)
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The MAX157/MAX159 low-power, 10-bit analog-to-digi-
tal converters (ADCs) are available in 8-pin µMAX and
DIP packages. Both devices operate with a single
+2.7V to +5.25V supply and feature a 7.4µs succes-
sive-approximation ADC, automatic power-down, fast
wake-up (2.5µs), an on-chip clock, and a high-speed,
3-wire serial interface.
Power consumption is only 3.2mW (V
maximum sampling rate of 108ksps. At slower through-
put rates, the 0.2µA automatic shutdown further
reduces power consumption.
The MAX157 provides 2-channel, single-ended opera-
tion and accepts input signals from 0 to V
MAX159 accepts pseudo-differential inputs ranging
from 0 to V
through the 3-wire serial interface, which is SPI™,
QSPI™, and MICROWIRE™ compatible.
Excellent dynamic performance and low power, com-
bined with ease of use and a small package size, make
these converters ideal for battery-powered and data
acquisition applications, or for other circuits with
demanding power-consumption and space require-
ments. For pin-compatible 12-bit upgrades, see the
MAX144/MAX145 data sheet.
Battery-Powered Systems
Portable Data Logging
Isolated Data Acquisition
Process-Control Monitoring
MICROWIRE is a trademark of National Semiconductor Corp.
19-1388; Rev 0; 11/98
SPI and QSPI are trademarks of Motorola, Inc.
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.
TOP VIEW
( ) ARE FOR MAX159 ONLY.
CH0 (CH+)
CH1 (CH-)
REF
108ksps, Serial 10-Bit ADCs in 8-Pin µMAX
GND
V
. An external clock accesses data
DD
________________________________________________________________ Maxim Integrated Products
1
2
4
3
General Description
MAX/DIP
MAX157
MAX159
Pin Configuration
Instrumentation
Test Equipment
Medical Instruments
System Supervision
Applications
6
8
7
5
DD
SCLK
DOUT
CS/SHDN
REF
= +3.6V) at the
REF
+2.7V, Low-Power, 2-Channel,
. The
* Contact factory for availability.
MAX157ACUA
MAX157BCUA
MAX157ACPA
MAX157BCPA
MAX157AEUA
MAX157BEUA
MAX157AEPA
MAX157BEPA
MAX157AMJA
MAX157BMJA
MAX159ACUA
MAX159BCUA
MAX159ACPA
MAX159BCPA
MAX159AEUA
MAX159BEUA
MAX159AEPA
MAX159BEPA
MAX159AMJA
MAX159BMJA
Single-Supply Operation (+2.7V to +5.25V)
Two Single-Ended Channels (MAX157)
Single Pseudo-Differential Channel (MAX159)
Low Power
Internal Track/Hold
108ksps Sampling Rate
SPI/QSPI/MICROWIRE-Compatible 3-Wire
Serial Interface
Space-Saving 8-Pin µMAX Package
Pin-Compatible 12-Bit Upgrades Available
0.9mA (at 108ksps, +3V)
100µA (at 10ksps, +3V)
10µA (at 1ksps, +3V)
<0.2µA (power-down mode)
PART
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
-55°C to +125°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
-55°C to +125°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
0°C to +70°C
0°C to +70°C
RANGE
TEMP.
Ordering Information
PIN-
PACKAGE
8 µMAX
8 µMAX
8 Plastic DIP
8 Plastic DIP
8 µMAX
8 µMAX
8 Plastic DIP
8 Plastic DIP
8 CERDIP*
8 CERDIP*
8 µMAX
8 µMAX
8 Plastic DIP
8 Plastic DIP
8 µMAX
8 µMAX
8 Plastic DIP
8 Plastic DIP
8 CERDIP*
8 CERDIP*
Features
(LSB)
±0.5
±1
±0.5
±1
±0.5
±1
±0.5
±1
±0.5
±1
±0.5
±1
±0.5
±1
±0.5
±1
±0.5
±1
±0.5
±1
INL
1
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