MAX1102 Datasheet, PDF (1/16 Pages) Maxim Integrated Products – 8-Bit CODECs

19-1873; Rev 0; 12/00
8-Bit CODECs
General Description
The MAX1102/MAX1103/MAX1104 CODECs provide
both an 8-bit analog-to-digital converter (ADC) and an
8-bit digital-to-analog converter (DAC) with a 4-wire
logic interface. The MAX1102/MAX1103 include an
onboard +2V/+4V reference, providing a well-regulat-
ed, low noise reference for both the ADC and DAC.
The MAX1104 offers ratiometric conversion, with the
reference internally connected to V_DD.
The MAX1102/MAX1103/MAX1104 are low-cost, low-
power CODECs for use with microcontrollers (µCs).
They allow for greater flexibility when selecting a µC.
Less expensive µCs without onboard converters can be
used while maintaining overall system performance.
The MAX1102 operates from a single +2.7V to +3.6V
supply, the MAX1103 operates from a +4.5V to +5.5V
supply, and the MAX1104 operates from a +2.7V to
+5.5V supply. The MAX1102/MAX1103 incorporate a
V_DD monitor in addition to AIN for power supply moni-
toring. All devices feature a low 18µA standby mode,
where both data converters are disabled while the ref-
erence remains active, and three shutdown modes:
ADC disabled, DAC disabled, and complete shutdown
(1µA). A quick 10µs wake-up time allows the
MAX1102/MAX1103/MAX1104 to cycle in and out of
shutdown even during short-duration idle times.
The MAX1102/MAX1103/MAX1104 are available in a
space-saving 8-pin µMAX package.
________________________Applications
Analog I/O for Microcontrollers
Analog System Signal Supervision
Voice Recording and Playback
Functional Diagram
V_DD
MAX1102
V_DD/2
MAX1103
CS
SERIAL
MAX1104
ADC
T/H
AIN
SCLK ^{INTERFACE VOLTAGE}
AND
REFERENCE
DIN CONTROL
LOGIC
DAC
DAC
DOUT
LATCH
AOUT
GND
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.
Features
o 8-Bit ADC
±1LSB INL
Built-In Track-and-Hold
48dB of SINAD
o 8-Bit DAC
±1LSB INL
55dB of SFDR
o Internal Conversion Clock
o Single-Supply Operation
+2.7V to +3.6V (MAX1102)
+4.5V to +5.5V (MAX1103)
+2.7V to +5.5V (MAX1104)
o Low Power Consumption
0.5mA at 25ksps
1µA Shutdown Mode
o 6MHz 4-Wire SPI™, QSPI™, and MICROWIRE™
Compatible Interface
o Compact 8-Pin µMAX Package
o Internal Voltage Reference
+2V: MAX1102
+4V: MAX1103
o Power-Supply Monitor (MAX1102/MAX1103)
o Rail-to-Rail^® DAC Output Buffer
Ordering Information
PART
MAX1102EUA
MAX1103EUA
MAX1104EUA
TEMP.
RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-
PACKAGE
8 µMAX
8 µMAX
8 µMAX
REFER ENC E
+2V
+4V
V_DD
Pin Configuration
TOP VIEW
V_DD 1
GND 2
AIN 3
OUT 4
MAX1102
MAX1103
MAX1104
µMAX
8 DIN
7 DOUT
6 SCLK
5 CS
________________________________________________________________ Maxim Integrated Products 1
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.