max5104ceet Maxim Integrated Products, Inc., max5104ceet Datasheet

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max5104ceet

Manufacturer Part Number
max5104ceet
Description
Max5104 Low-power, Dual, Voltage-output, 12-bit Dac With Serial Interface
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
The MAX5104 low-power, serial, voltage-output, dual
12-bit digital-to-analog converter (DAC) consumes only
500µA from a single +5V supply. This device features
Rail-to-Rail
saving 16-pin QSOP package. To maximize the dynamic
range, the DAC output amplifiers are configured with an
internal gain of +2V/V.
The 3-wire serial interface is SPI™/QSPI™/MICROWIRE™
compatible. Each DAC has a double-buffered input
organized as an input register followed by a DAC register,
which allows the input and DAC registers to be updated
independently or simultaneously with a 16-bit serial
word. Additional features include programmable power-
down (2µA), hardware power-down lockout (PDL), a
separate reference voltage input for each DAC that
accepts AC and DC signals, and an active-low clear
input (CL) that resets all registers and DACs to zero.
These devices provide a programmable logic pin for
added functionality, and a serial-data output pin for
daisy chaining.
________________________Applications
19-1587; Rev 0; 11/99
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
Industrial Process Control
Remote Industrial Controls
Digital Offset and Gain Adjustment
Microprocessor-Controlled Systems
Motion Control
Automatic Test Equipment (ATE)
Low-Power, Dual, Voltage-Output, 12-Bit DAC
®
output swing and is available in a space-
________________________________________________________________ Maxim Integrated Products
CS
DOUT
REGISTER
CONTROL
16-BIT
General Description
SHIFT
DIN
SR
CL
SCLK
CONTROL
OUTPUT
DECODE
LOGIC
UPOH
PDL
DGND
INPUT
REG A
INPUT
REG B
AGND
REG A
REG B
DAC
DAC
V
DD
____________________________Features
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
Pin Configuration appears at end of data sheet.
MAX5104CEE
MAX5104EEE
12-Bit Dual DAC with Internal Gain of +2V/V
Rail-to-Rail Output Swing
12µs Settling Time
+5V Single-Supply Operation
Low Quiescent Current
SPI/QSPI/MICROWIRE Compatible
Space-Saving 16-Pin QSOP Package
Power-On Reset Clears Registers and DACs to Zero
Adjustable Output Offset
MAX5104
PART
500µA (normal operation)
2µA (power-down mode)
with Serial Interface
DAC A
DAC B
REFA
REFB
-40°C to +85°C
TEMP. RANGE
0°C to +70°C
Ordering Information
Functional Diagram
R
R
R
R
PACKAGE
16 QSOP
16 QSOP
PIN-
OSA
OUTA
OSB
OUTB
(LSB)
±4
±4
INL
1

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max5104ceet Summary of contents

Page 1

Rev 0; 11/99 Low-Power, Dual, Voltage-Output, 12-Bit DAC General Description The MAX5104 low-power, serial, voltage-output, dual 12-bit digital-to-analog converter (DAC) consumes only 500µA from a single +5V supply. This device features ® Rail-to-Rail output swing and is available in ...

Page 2

Low-Power, Dual, Voltage-Output, 12-Bit DAC with Serial Interface ABSOLUTE MAXIMUM RATINGS V to AGND............................................................-0. DGND ...........................................................-0.3V to +6V DD AGND to DGND ..................................................................±0.3V OSA, OSB to AGND.......................( AGND REF_, OUT_ to ...

Page 3

Low-Power, Dual, Voltage-Output, 12-Bit DAC ELECTRICAL CHARACTERISTICS (continued +5V ±10 +2.048V REFA REFB are +25°C (OS_ connected to AGND for a gain of +2V/V).) A PARAMETER SYMBOL DIGITAL OUTPUTS ...

Page 4

Low-Power, Dual, Voltage-Output, 12-Bit DAC with Serial Interface __________________________________________Typical Operating Characteristics (V = +5V 10kΩ 100pF, OS_ pins connected to AGND REFERENCE VOLTAGE INPUT FREQUENCY RESPONSE -10 ...

Page 5

Low-Power, Dual, Voltage-Output, 12-Bit DAC _____________________________Typical Operating Characteristics (continued +5V 10kΩ 100pF, OS_ pins connected to AGND DYNAMIC RESPONSE RISE TIME 2 s/div V = +2.048V REF SUPPLY CURRENT vs. ...

Page 6

Low-Power, Dual, Voltage-Output, 12-Bit DAC with Serial Interface _____________________Pin Description PIN NAME FUNCTION 1 AGND Analog Ground 2 OUTA DAC A Output Voltage 3 OSA DAC A Offset Adjustment 4 REFA Reference for DAC A Active-Low Clear Input. Resets all ...

Page 7

Low-Power, Dual, Voltage-Output, 12-Bit DAC Table 1. Serial-Interface Programming Commands 16-BIT SERIAL WORD D11....................... (MSB 12-bit DAC data 12-bit DAC data 12-bit DAC data 12-bit ...

Page 8

Low-Power, Dual, Voltage-Output, 12-Bit DAC with Serial Interface DIN MOSI MAX5104 SCLK SCK CS I/O CPOL = 0, CPHA = 0 Figure 3. Connections for SPI/QSPI MSB...................................................................................LSB 16 Bits of Serial Data Address Bits Control Bits MSB...Data Bits...LSB A0 C1, ...

Page 9

Low-Power, Dual, Voltage-Output, 12-Bit DAC CS t CSS t CSO SCLK DIN Figure 6. Detailed Serial-Interface Timing Diagram SCLK MAX5104 DIN DOUT CS Figure 7. Daisy Chaining MAX5104s DIN SCLK CS1 CS2 CS3 CS MAX5104 SCLK ...

Page 10

Low-Power, Dual, Voltage-Output, 12-Bit DAC with Serial Interface Serial-Data Output The serial-data output, DOUT, is the internal shift register’s output. DOUT allows for daisy chaining of devices and data readback. The MAX5104 can be programmed to shift data out of ...

Page 11

Low-Power, Dual, Voltage-Output, 12-Bit DAC [((2 · NB) / 4096 OUT REF where NB represents the numeric value of the DAC’s binary input code. Table 3 shows digital codes and the corresponding output voltage for ...

Page 12

Low-Power, Dual, Voltage-Output, 12-Bit DAC with Serial Interface MAX5104 REFA INPUT DAC REG A REG A SHIFT SCLK REGISTER INPUT DAC DIN REG B REG B REFB V REF Figure 14. Digital Control of Gain and Offset ...

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