Rainbow Electronics MAX5106 - Manual

General Description
The MAX5105/MAX5106 nonvolatile, quad, 8-bit digital-
to-analog converters (DACs) operate from a single
+2.7V to +5.5V supply. An internal EEPROM stores the
DAC states even after power is removed. Data from
these nonvolatile registers automatically initialize the
DAC outputs and operating states during power-up.
Precision internal buffers swing Rail-to-Rail
® , and the
reference input range includes both ground and the
positive rail.
The MAX5105/MAX5106 feature a software-controlled
10µA shutdown mode and a mute state that drives the
DAC outputs to their respective REFL_ voltages. The
MAX5105 includes an asynchronous MUTE input, as
well as a RDY/BSY output that indicates the status of
the nonvolatile memory.
The MAX5105 is available in a 20-pin QSOP and 20-pin
wide SO packages, and the MAX5106 is available in a
16-pin QSOP package.
________________________Applications
Digital Gain and Offset Adjustments
Programmable Attenuators
Portable Instruments
Power-Amp Bias Control
Features
♦ On-Chip EEPROM Stores DAC States
♦ Power-On Reset Initialization of All Registers to
Prestored States
♦ +2.7V to +5.5V Single-Supply Operation
♦ Four 8-Bit DACs with Independent High and Low
Reference Inputs (MAX5105)
♦ Ground to V
DD Reference Input Range
♦ Rail-to-Rail Output Buffers
♦ Low 1mA Supply Current
♦ Low Power 10µA (max) Shutdown Mode
♦ Small 20- or 16-Pin QSOP Package
♦ SPI™/QSPI™/MICROWIRE™-Compatible Serial
Interface
♦ Asynchronous MUTE Input (MAX5105)
♦ RDY/BSY Pin to Indicate Memory Status
(MAX5105)
♦ Wide Operating Temperature Range
(-40°C to +85°C)
MAX5105/MAX5106
Nonvolatile, Quad, 8-Bit DACs
________________________________________________________________ Maxim Integrated Products 1
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
REFH2
REFH3
OUT0
OUT1 RDY/BSY
V
DD
REFH0
REFH1
TOP VIEW
OUT2
OUT3
REFL3
REFL2 DOUT
DIN
CS
CLK
12
11
9
10
REFL1
REFL0 GND
MUTE
MAX5105
20 QSOP/SOIC
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
REFH1 REFH2
REFH3
OUT0
OUT1
OUT2
OUT3
REFL1
REFL0
MAX5106
16 QSOP
REFH0
V DD
DIN
CLK
CS
DOUT
GND
Ordering Information
Pin Configurations
19-1925; Rev 1; 6/01
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.
Functional Diagram appears at end of data sheet.
Rail-to-Rail is a trademark of Nippon Motorola, Ltd.
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
PART TEMP RANGE PIN-PACKAGE
MAX5105EEP -40 °C to +85°C 20 QSOP
MAX5105EWP -40 °C to +85°C 20 SO
MAX5106EEE -40 °C to +85°C 16 QSOP