19-2036; Rev 3; 8/10
150ksps, 10-Bit, 2-Channel Single-Ended, and
1-Channel True-Differential ADCs in SOT23 and TDFN
6–MAX1089
General Description
Features
o Single-Supply Operation
+3V (MAX1087/MAX1089)
+5V (MAX1086/MAX1088)
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 (1.4µs), and a high-speed 3-wire inter-
o AutoShutdown Between Conversions
o Low Power
200µA at 150ksps
130µA at 100ksps
65µA at 50ksps
13µA at 10ksps
1.5µA at 1ksps
0.2µA in Shutdown
face. Power consumption is only 0.5mW (V
= +2.7V)
DD
at the maximum sampling rate of 150ksps.
AutoShutdown™ (0.1µA) 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
o True-Differential Track/Hold, 150kHz Sampling Rate
o Software-Configurable Unipolar/Bipolar
V
. The MAX1088/MAX1089 accept true-differential
Conversion (MAX1088/MAX1089 only)
REF
inputs ranging from 0 to V
. Data is accessed using
o SPI, QSPI, MICROWIRE-Compatible Interface for
REF
DSPs and Processors
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.
o Internal Conversion Clock
o 8-Pin SOT23 and 8-Pin TDFN Packages
Ordering Information
TEMP
RANGE
PIN-
PACKAGE
TOP
MARK
PART
MAX1086EKA-T
-40°C to +85°C
8 SOT23
AAEZ
AFQ
Applications
MAX1086ETA+T -40°C to +85°C
MAX1087EKA-T -40°C to +85°C
MAX1087ETA+T -40°C to +85°C
MAX1088EKA-T -40°C to +85°C
MAX1088ETA+T -40°C to +85°C
MAX1089EKA-T -40°C to +85°C
8 TDFN-EP*
8 SOT23
Low Power Data Acquisition
Portable Temperature Monitors
Flowmeters
AAEV
AFM
8 TDFN-EP*
8 SOT23
AAFB
AFS
8 TDFN-EP*
8 SOT23
Touch Screens
AAEX
AFO
MAX1089ETA+T -40°C to +85°C
*EP = Exposed pad.
8 TDFN-EP*
AutoShutdown is a trademark of Maxim Integrated Products.
SPI and QSPI are trademarks of Motorola Inc.
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
MICROWIRE is a trademark of National Semiconductor Corp.
Pin Configurations
TOP VIEW
8
7
6
5
V
1
2
3
4
8
7
6
5
SCLK
DOUT
CNVST
REF
DD
AIN1 (AIN+)
AIN2 (AIN-)
GND
MAX1086
MAX1087
MAX1088
MAX1089
MAX1086–
MAX1089
+
SOT23
1
2
3
4
(
) ARE FOR THE MAX1088/MAX1089
TDFN
________________________________________________________________ Maxim Integrated Products
1
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.