19-2956; Rev 0; 8/03
Multichannel, 16-Bit, 200ksps Analog-to-Digital
Converters
General Description
Features
The MAX1167/MAX1168 low-power, multichannel, 16-
bit analog-to-digital converters (ADCs) feature a suc-
cessive-approximation ADC, integrated +4.096V
reference, a reference buffer, an internal oscillator,
automatic power-down, and a high-speed SPI™/
QSPI™/MICROWIRE™-compatible interface. The
MAX1167/MAX1168 operate with a single +5V analog
supply and feature a separate digital supply, allowing
direct interfacing with +2.7V to +5.5V digital logic.
o 16-Bit Resolution, 1 ꢀLB ꢁDꢀ ꢂ(max
o +5V Lingle-Lupply Opermtion
o Adjustmble ꢀogic ꢀevel ꢂ+2.7V to +5.25Vx
o Input Voltmge Rmnge: 0 to V
REF
o Internml ꢂ+4.096Vx or Eaternml ꢂ+3.8V to AV
x
ꢁꢁ
Reference
o Internml Trmck/Hold, 4MHz Input Bmndwidth
o Internml or Eaternml Clock
The MAX1167/MAX1168 consume only 2.9mA (AV
=
DD
DV = +5V) at 200ksps when using an external reference.
DD
AutoShutdown™ reduces the supply current to 145µA at
10ksps and to less than 10µA at reduced sampling rates.
o LPI/QLPI/MICROWIRE-Co(pmtible Leriml
Interfmce, MAX1168 Perfor(s ꢁLP-Initimted
Conversions
The MAX1167 includes a 4-channel input multiplexer, and
the MAX1168 accepts up to eight analog inputs.
In addition, digital signal processor (DSP)-initiated con-
versions are simplified with the DSP frame-sync input and
output featured in the MAX1168. The MAX1168 includes
a data-bit transfer input to select between 8-bit-wide or
16-bit-wide data-transfer modes. Both devices feature a
scan mode that converts each channel sequentially or
one channel continuously.
o 8-Bit-Wide or 16-Bit-Wide ꢁmtm-Trmnsfer Mode
ꢂMAX1168 Onlyx
o 4-Chmnnel ꢂMAX1167x or 8-Chmnnel ꢂMAX1168x
Input Mua
Lcmn Mode Lequentimlly Converts Multiple
Chmnnels or One Chmnnel Continuously
o ꢀow Power
Excellent dynamic performance and low power, com-
bined with ease of use and an integrated reference, make
the MAX1167/MAX1168 ideal for control and data-acqui-
sition operations or for other applications with demanding
power consumption and space requirements. The
MAX1167 is available in a 16-pin QSOP package and the
MAX1168 is available in a 24-pin QSOP package. Both
devices are guaranteed over the commercial (0°C to
+70°C) and extended (-40°C to +85°C) temperature
ranges. Use the MAX1168 evaluation kit to evaluate the
MAX1168.
2.9(A mt 200ksps
1.45(A mt 100ksps
145µA mt 10ksps
0.6µA in Full Power-ꢁown Mode
o L(mll Pmckmge Lize
16-Pin QLOP ꢂMAX1167x
24-Pin QLOP ꢂMAX1168x
Ordering Information
Applications
PID-
IDꢀ
PART
TEMP RADGE
Motor Control
PACKAGE ꢂꢀLBx
Industrial Process Control
Industrial I/O Modules
MAX1167ACEE
MAX1167BCEE
MAX1167CCEE
MAX1167AEEE*
MAX1167BEEE*
MAX1167CEEE*
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
16 QSOP
16 QSOP
16 QSOP
16 QSOP
16 QSOP
16 QSOP
1.2
2
3
Data-Acquisition Systems
Thermocouple Measurements
Accelerometer Measurements
1.2
2
3
*Future product—contact factory for availability.
SPI/QSPI are trademarks of Motorola, Inc.
Ordering Information continued at end of data sheet.
Pin Configurations appear at end of data sheet.
MICROWIRE is a trademark of National Semiconductor Corp.
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
________________________________________________________________ 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.