General Description
The MAX1086–MAX1089 are low-cost, micropower, ser-
ial output 10-bit analog-to-digital converters (ADCs)
available in a tiny 8-pin SOT23. The MAX1086/MAX1088
operate with a single +5V supply. The MAX1087/MAX1089
operate with a single +3V supply. The devices feature a
successive-approximation ADC, automatic shutdown,
fast wake-up (1.4s), and a high-speed 3-wire inter-
face. Power consumption is only 0.5mW (VDD = +2.7V)
at
the
maximum
sampling
rate
of
150ksps.
AutoShutdown (0.1A) between conversions results in
reduced power consumption at slower throughput rates.
The MAX1086/MAX1087 provide 2-channel, single-
ended operation and accept input signals from 0 to
VREF. The MAX1088/MAX1089 accept true-differential
inputs ranging from 0 to VREF. Data is accessed using
an external clock through the 3-wire SPI, QSPI, and
MICROWIRE-compatible serial interface. Excellent
dynamic performance, low-power, ease of use, and
small package size, make these converters ideal for
portable battery-powered data acquisition applications,
and for other applications that demand low power con-
sumption and minimal space.
Applications
Low Power Data Acquisition
Portable Temperature Monitors
Flowmeters
Touch Screens
Features
o Single-Supply Operation
+3V (MAX1087/MAX1089)
+5V (MAX1086/MAX1088)
o AutoShutdown Between Conversions
o Low Power
200A at 150ksps
130A at 100ksps
65A at 50ksps
13A at 10ksps
1.5A at 1ksps
0.2A in Shutdown
o True-Differential Track/Hold, 150kHz Sampling Rate
o Software-Configurable Unipolar/Bipolar
Conversion (MAX1088/MAX1089 only)
o SPI, QSPI, MICROWIRE-Compatible Interface for
DSPs and Processors
o Internal Conversion Clock
o 8-Pin SOT23 and 8-Pin TDFN Packages
MAX1086–MAX1089
150ksps, 10-Bit, 2-Channel Single-Ended, and
1-Channel True-Differential ADCs in SOT23 and TDFN
________________________________________________________________
Maxim Integrated Products
1
CNVST
REF
GND
1
2
8
7
SCLK
DOUT
AIN1 (AIN+)
AIN2 (AIN-)
VDD
SOT23
TOP VIEW
( ) ARE FOR THE MAX1088/MAX1089
3
4
6
5
MAX1086
MAX1087
MAX1088
MAX1089
13
4
86
5
SCLK
CONVST
REF
MAX1086–
MAX1089
2
7
DOUT
V
DD
AIN1
AIN2
GND
TDFN
+
Pin Configurations
19-2036; Rev 3; 8/10
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Ordering Information
AutoShutdown is a trademark of Maxim Integrated Products.
SPI and QSPI are trademarks of Motorola Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
PART
TEMP
RANGE
PIN-
PACKAGE
TOP
MARK
MAX1086EKA-T
-40°C to +85°C
8 SOT23
AAEZ
MAX1086ETA+T
-40°C to +85°C
8 TDFN-EP*
AFQ
MAX1087EKA-T
-40°C to +85°C
8 SOT23
AAEV
MAX1087ETA+T
-40°C to +85°C
8 TDFN-EP*
AFM
MAX1088EKA-T
-40°C to +85°C
8 SOT23
AAFB
MAX1088ETA+T
-40°C to +85°C
8 TDFN-EP*
AFS
MAX1089EKA-T
-40°C to +85°C
8 SOT23
AAEX
MAX1089ETA+T
-40°C to +85°C
8 TDFN-EP*
AFO
*EP = Exposed pad.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
EVALUATION
KIT
AVAILABLE