_______________General Description
The MAX5154/MAX5155 low-power, serial, voltage-out-
put, dual 12-bit digital-to-analog converters (DACs)
consume only 500µA from a single +5V (MAX5154) or
+3V (MAX5155) supply. These devices feature Rail-to-
Rail
®
output swing and are available in a space-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™ and
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 reg-
isters to be updated independently or simultaneously
with a 16-bit serial word. Additional features include
programmable shutdown (2µA), hardware-shutdown
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 out-
put pin for daisy chaining.
________________________Applications
Industrial Process Control Remote Industrial Controls
Digital Offset and Gain Microprocessor-
Adjustment Controlled Systems
Motion Control Automatic Test
Equipment (ATE)
____________________________Features
12-Bit Dual DAC with Internal Gain of +2V/V
Rail-to-Rail Output Swing
12µs Settling Time
Single-Supply Operation: +5V (MAX5154)
+3V (MAX5155)
Low Quiescent Current: 500µA (normal operation)
2µA (shutdown mode)
SPI/QSPI and Microwire Compatible
Available in Space-Saving 16-Pin QSOP Package
Power-On Reset Clears Registers and DACs
to Zero
Adjustable Output Offset
MAX5154/MAX5155
Low-Power, Dual, 12-Bit Voltage-Output DACs
with Serial Interface
________________________________________________________________
Maxim Integrated Products
1
19-1316; Rev 1; 12/97
______________Ordering Information
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.
SPI and QSPI are trademarks of Motorola, Inc.
Microwire is a trademark of National Semiconductor Corp.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
For small orders, phone 408-737-7600 ext. 3468.
REFA
V
DD
AGND
DGNDPDLCL
DOUT
16-BIT
SHIFT
REGISTER
SR
CONTROL
INPUT
REG A
INPUT
REG B
SCLK
UPO REFB
DINCS
DAC B
DAC A
DAC
REG A
LOGIC
OUTPUT
DECODE
CONTROL
DAC
REG B
MAX5154
MAX5155
OUTB
R
R
R
R
OSB
OUTA
OSA
_________________________________________________________Functional Diagram
Ordering Information continued at end of data sheet.
Pin Configuration appears at end of data sheet.
INL
(LSB)
PIN-PACKAGETEMP. RANGEPART
±1/2
±1
±1/2
16 QSOP
16 Plastic DIP
16 Plastic DIP0°C to +70°C
0°C to +70°C
0°C to +70°CMAX5154ACEE
MAX5154BCPE
MAX5154ACPE
±116 QSOP0°C to +70°CMAX5154BCEE
MAX5154/MAX5155
Low-Power, Dual, 12-Bit Voltage-Output DACs
with Serial Interface
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—MAX5154
(V
DD
= +5V ±10%, V
REFA
= V
REFB
= 2.048V, R
L
= 10k, C
L
= 100pF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are
at T
A
= +25°C (OS_ tied to AGND for a gain of +2V/V).)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
V
DD
to AGND............................................................-0.3V to +6V
V
DD
to DGND ...........................................................-0.3V to +6V
AGND to DGND..................................................................±0.3V
OSA, OSB to AGND........................(AGND - 4V) to (V
DD
+ 0.3V)
REF_, OUT_ to AGND.................................-0.3V to (V
DD
+ 0.3V)
Digital Inputs (SCLK, DIN, CS, CL, PDL)
to DGND............................................................(-0.3V to +6V)
Digital Outputs (DOUT, UPO)
to DGND................................................-0.3V to (V
DD
+ 0.3V)
Maximum Current into Any Pin.........................................±20mA
Continuous Power Dissipation (T
A
= +70°C)
Plastic DIP (derate 10.5mW/°C above +70°C) ...........842mW
QSOP (derate 8.30mW/°C above +70°C)...................667mW
CERDIP (derate 10.00mW/°C above +70°C)..............800mW
Operating Temperature Ranges
MAX515_ _C_ E .................................................0°C to +70°C
MAX515_ _E_ E ..............................................-40C° to +85°C
MAX515_ _MJE.............................................-55°C to +125°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10sec).............................+300°C
(Note 1)
Input code = 0000 hex,
V
REF_
= (V
DD
- 1.4Vp-p) at 1kHz
Input code = 1FFE hex,
V
REF_
= 0.67Vp-p at 2.5V
DC
4.5V V
DD
5.5V
Minimum with code 1554 hex
Normalized to 2.048V
Guaranteed monotonic
Code = 6
Normalized to 2.048V
dB-82Reference Feedthrough
kHz300Reference 3dB Bandwidth
k14 20R
REF
Reference Input Resistance
REFReference Input Range V0 V
DD
- 1.4
±1
LSB
±1/2
INL
Bits12Resolution
Integral Nonlinearity
PSRR
V
DD
Power-Supply
Rejection Ratio
µV/V20 260
ppm/°C4Gain-Error Tempco
LSB±1DNLDifferential Nonlinearity
mV±6V
os
Offset Error
ppm/°C4TCV
os
Offset Tempco
LSB-0.2 ±3Gain Error
MAX5154A
MAX5154B
CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER
Input code = 1FFE hex,
V
REF_
= 1Vp-p at 1.25V
DC
, f = 25kHz
dB75SINAD
Signal-to-Noise plus
Distortion Ratio
CL, PDL, CS, DIN, SCLK
V0.8V
IL
Input Low Voltage
V
IN
= 0V to V
DD
µA0.001 ±1I
IN
Input Leakage Current
pF8C
IN
Input Capacitance
mV200V
HYS
Input Hysteresis
CL, PDL, CS, DIN, SCLK
V3V
IH
Input High Voltage
STATIC PERFORMANCE
REFERENCE INPUT
MULTIPLYING-MODE PERFORMANCE
DIGITAL INPUTS
MAX5154/MAX5155
Low-Power, Dual, 12-Bit Voltage-Output DACs
with Serial Interface
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS—MAX5154 (continued)
(V
DD
= +5V ±10%, V
REFA
= V
REFB
= 2.048V, R
L
= 10k, C
L
= 100pF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are
at T
A
= +25°C (OS_ tied to AGND for a gain of +2V/V).)
Note 1: Accuracy is specified from code 6 to code 4095.
Note 2: Accuracy is better than 1LSB for V
OUT
_ greater than 6mV and less than V
DD
- 50mV. Guaranteed by PSRR test at the end
points.
Note 3: Digital inputs are set to either V
DD
or DGND, code = 0000 hex, R
L
= .
Note 4: SCLK minimum clock period includes the rise and fall times.
CS = V
DD
, f
DIN
= 100kHz, V
SCLK
= 5Vp-p
I
SOURCE
= 2mA
(Note 4)
(Note 3)
(Note 3)
ns
Rail-to-rail (Note 2)
To 1/2LSB of full-scale, V
STEP
= 4V
40
I
SINK
= 2mA
t
CL
SCLK Pulse Width Low
CONDITIONS
ns40t
CH
SCLK Pulse Width High
nV-s5Digital Crosstalk
nV-s5Digital Feedthrough
µs25Time Required to Exit Shutdown
k24 34R
OS_
OSA or OSB Input Resistance
ns100t
CP
SCLK Clock Period
µA0 ±1Reference Current in Shutdown
µA2 10I
DD(SHDN)
Power-Supply Current
in Shutdown
mA0.5 0.65I
DD
Power-Supply Current
V4.5 5.5V
DD
Positive Supply Voltage
ns40t
DS
SDI Setup Time
ns
VV
DD
- 0.5V
OH
Output High Voltage
0t
CSH
SCLK Rise to CS Rise
Hold Time
ns40t
CSS
CS Fall to SCLK Rise
Setup Time
C
LOAD
= 200pF
V0 to V
DD
Output Voltage Swing
µs15Output Settling Time
C
LOAD
= 200pF
ns80
V0.13 0.40V
OL
Output Low Voltage
V/µs0.75SRVoltage Output Slew Rate
UNITSMIN TYP MAXSYMBOLPARAMETER
t
DO2
SCLK Fall to DOUT
Valid Propagation Delay
ns80t
DO1
SCLK Rise to DOUT
Valid Propagation Delay
ns0t
DH
SDI Hold Time
ns100t
CSW
CS Pulse Width High
ns40t
CS1
CS Rise to SCLK Rise Hold
ns10t
CS0
SCLK Rise to CS Fall Delay
DIGITAL OUTPUTS (DOUT, UPO)
DYNAMIC PERFORMANCE
POWER SUPPLIES
TIMING CHARACTERISTICS

MAX5154BCEE+

Mfr. #:
Manufacturer:
Maxim Integrated
Description:
Digital to Analog Converters - DAC 12-Bit 2Ch Precision DAC
Lifecycle:
New from this manufacturer.
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