19-1123; Rev 1; 10/02
+3V, Quad, 12-Bit Voltage-Output DAC
with Serial Interface
__________________General Description
The MAX5253 combines four low-power, voltage-output,
12-bit digital-to-analog converters (DACs) and four pre-
cision output amplifiers in a space-saving, 20-pin pack-
age. In addition to the four voltage outputs, each
amplifier’s negative input is also available to the user.
This facilitates specific gain configurations, remote
sensing, and high output drive capacity, making the
MAX5253 ideal for industrial-process-control applica-
tions. Other features include software shutdown, hard-
ware shutdown lockout, an active-low reset which clears
all registers and DACs to zero, a user-programmable
logic output, and a serial-data output.
Each DAC has a double-buffered input organized as an
input register followed by a DAC register. A 16-bit serial
word loads data into each input/DAC register. The serial
interface is compatible with SPI™/QSPI™ and
MICROWIRE™. It allows the input and DAC registers to
be updated independently or simultaneously with a sin-
gle software command. The DAC registers can be
simultaneously updated through the 3-wire serial inter-
face. All logic inputs are TTL/CMOS-logic compatible.
______________________________Features
o
Four 12-Bit DACs with Configurable
Output Amplifiers
o
+3.0V to +3.6V Single-Supply Operation
o
Low Supply Current: 0.82mA Normal Operation
3µA Shutdown Mode
o
Reference Inputs are High Impedance in Shutdown
o
Available in 20-Pin SSOP
o
Power-On Reset Clears all Registers and
DACs to Zero
o
SPI/QSPI and MICROWIRE Compatible
o
Simultaneous or Independent Control of DACs
Through 3-Wire Serial Interface
o
User-Programmable Digital Output
MAX5253
_________________Ordering Information
PART
MAX5253ACPP
MAX5253BCPP
MAX5253ACAP
MAX5253BCAP
TEMP RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
PIN-PACKAGE
20 Plastic DIP
20 Plastic DIP
20 SSOP
20 SSOP
INL
(LSB)
±1/2
±1
±1/2
±1
________________________Applications
Industrial Process Controls
Automatic Test Equipment
Digital Offset and Gain Adjustment
Motion Control
Remote Industrial Controls
Microprocessor-Controlled Systems
Ordering Information continued at end of data sheet.
Pin Configuration appears at end of data sheet.
_________________________________________________________________________Functional Diagram
DOUT CL
PDL
DECODE
CONTROL
INPUT
REGISTER A
DGND
AGND
V
DD
REFAB
FBA
MAX5253
DAC A
REGISTER A
OUTA
DAC A
FBB
OUTB
DAC B
FBC
OUTC
DAC C
FBD
OUTD
DAC D
16-BIT
SHIFT
REGISTER
INPUT
REGISTER B
DAC B
REGISTER B
INPUT
REGISTER C
DAC C
REGISTER C
SR
CONTROL
CS DIN SCLK
LOGIC
OUTPUT
UPO
INPUT
REGISTER D
DAC D
REGISTER D
REFCD
SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp.
________________________________________________________________
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.
+3V, Quad, 12-Bit Voltage-Output DAC
with Serial Interface
MAX5253
ABSOLUTE MAXIMUM RATINGS
V
DD
to AGND...............................................................-0.3V, +6V
V
DD
to DGND ..............................................................-0.3V, +6V
AGND to DGND ..................................................................±0.3V
REFAB, REFCD to AGND ...........................-0.3V to (V
DD
+ 0.3V)
OUT_, FB_ to AGND...................................-0.3V to (V
DD
+ 0.3V)
Digital Inputs to DGND.............................................-0.3V to +6V
DOUT, UPO to DGND ................................-0.3V to (V
DD
+ 0.3V)
Continuous Current into Any Pin.......................................±20mA
Continuous Power Dissipation (T
A
= +70°C)
Plastic DIP (derate 8.00mW/°C above +70°C) .................640mW
SSOP (derate 8.00mW/°C above +70°C) ......................640mW
CERDIP (derate 11.11mW/°C above +70°C) .................889mW
Operating Temperature Ranges
MAX5253_C_P ......................................................0°C to +70°C
MAX5253_E_P ...................................................-40°C to +85°C
MAX5253BMJP ................................................-55°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
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.
ELECTRICAL CHARACTERISTICS
(V
DD
= +3.0V to +3.6V, AGND = DGND = 0V, REFAB = REFCD = 1.25V, R
L
= 5kΩ, C
L
= 100pF, T
A
= T
MIN
to T
MAX
, unless otherwise
noted. Typical values are at T
A
= +25°C. Output buffer connected in unity-gain configuration (Figure 9).)
PARAMETER
Resolution
Integral Nonlinearity
(Note 1)
Differential Nonlinearity
Offset Error
Offset-Error Tempco
Gain Error
Gain-Error Tempco
Power-Supply Rejection Ratio
Gain Error
Offset Error
Integral Nonlinearity
REFERENCE INPUT
Reference Input Range
Reference Input Resistance
V
REF
R
REF
Code-dependent, minimum at code 555 hex
0
8
V
DD
- 1.4
V
kΩ
INL
PSRR
GE
±1.0
±0.35
V
DD
= +3.0V to +3.6V
MATCHING PERFORMANCE
(T
A
= +25°C)
±4.0
±6.0
±1.0
LSB
mV
LSB
GE
(Note 1)
1
300
SYMBOL
N
MAX5253AC/E
INL
DNL
V
OS
6
±4.0
MAX5253BC/E
MAX5253BMJP
Guaranteed monotonic
CONDITIONS
MIN
12
±0.25
±0.5
±1.0
±2.0
±1.0
±6.0
LSB
mV
ppm/°C
LSB
ppm/°C
µV/V
LSB
TYP
MAX
UNITS
Bits
STATIC PERFORMANCE—ANALOG SECTION
2
_______________________________________________________________________________________
+3V, Quad, 12-Bit Voltage-Output DAC
with Serial Interface
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +3.0V to +3.6V, AGND = DGND = 0V, REFAB = REFCD = 1.25V, R
L
= 5kΩ, C
L
= 100pF, T
A
= T
MIN
to T
MAX
, unless otherwise
noted. Typical values are at T
A
= +25°C. Output buffer connected in unity-gain configuration (Figure 9).)
PARAMETER
Reference -3dB Bandwidth
Reference Feedthrough
Signal-to-Noise Plus
Distortion Ratio
DIGITAL INPUTS
Input High Voltage
Input Low Voltage
Input Leakage Current
Input Capacitance
DIGITAL OUTPUTS
Output High Voltage
Output Low Voltage
DYNAMIC PERFORMANCE
Voltage Output Slew Rate
Output Settling Time
Output Voltage Swing
Current into FB_
OUT_ Leakage Current
in Shutdown
Start-Up Time Exiting
Shutdown Mode
Digital Feedthrough
Digital Crosstalk
POWER SUPPLIES
Supply Voltage
Supply Current
Supply Current in Shutdown
Reference Current in Shutdown
Note 1:
Note 2:
Note 3:
Note 4:
V
DD
I
DD
(Note 3)
(Note 4)
(Note 4)
3.0
0.82
3
0.01
3.6
0.98
20
±1
V
mA
µA
µA
CS
= V
DD
, DIN = 100kHz
R
L
=
∞
SR
To ±1/2LSB, V
STEP
= 1.25V
Rail-to-Rail
®
(Note 2)
0.6
16
0 to V
DD
0
0.01
20
5
5
0.1
±1
V/µs
µs
V
µA
µA
µs
nV-s
nV-s
V
OH
V
OL
I
SOURCE
= 2mA
I
SINK
= 2mA
V
DD
- 0.5
0.13
0.4
V
V
V
IH
V
IL
I
IN
C
IN
V
IN
= 0V or V
DD
0.01
8
2.0
0.8
±0.1
V
V
µA
pF
SINAD
SYMBOL
CONDITIONS
V
REF
= 0.67V
P-P
Input code = all 0s, V
REF
= 1.6V
P-P
at 1kHz
V
REF
= 1V
P-P
at 25kHz
MIN
TYP
650
-84
72
MAX
UNITS
kHz
dB
dB
MULTIPLYING-MODE PERFORMANCE
MAX5253
Guaranteed from code 11 to code 4095 in unity-gain configuration.
Accuracy is better than 0.5LSB for V
OUT
= 6mV to V
DD
- 80mV, guaranteed by PSR test on endpoints.
Remains operational with supply voltage as low as +2.7V.
R
L
=
∞,
digital inputs at DGND or V
DD
.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
_______________________________________________________________________________________
3
+3V, Quad, 12-Bit Voltage-Output DAC
with Serial Interface
MAX5253
TIMING CHARACTERISTICS
(V
DD
= +3.0V to +3.6V, AGND = DGND = 0V, REFAB = REFCD =1.25V, R
L
= 5kΩ, C
L
= 100pF, T
A
= T
MIN
to T
MAX
, unless otherwise
noted. Typical values are at T
A
= +25°C. Output buffer connected in unity-gain configuration (Figure 9).)
PARAMETER
SCLK Clock Period
SCLK Pulse Width High
SCLK Pulse Width Low
CS
Fall to SCLK Rise Setup Time
SCLK Rise to
CS
Rise Hold Time
DIN Setup Time
DIN Hold Time
SCLK Rise to DOUT Valid
Propagation Delay
SCLK Fall to DOUT Valid
Propagation Delay
SCLK Rise to
CS
Fall Delay
CS
Rise to SCLK Rise Hold Time
CS
Pulse Width High
SYMBOL
t
CP
t
CH
t
CL
t
CSS
t
CSH
t
DS
t
DH
t
D01
t
D02
t
CS0
t
CS1
t
CSW
C
L
= 200pF
C
L
= 200pF
40
40
100
CONDITIONS
MIN
100
40
40
40
0
40
0
120
120
TYP
MAX
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
__________________________________________Typical Operating Characteristics
(V
DD
= +3.3V, T
A
= +25°C, unless otherwise noted.)
INTEGRAL NONLINEARITY
vs. REFERENCE VOLTAGE
MAX5253-01
REFERENCE VOLTAGE INPUT
FREQUENCY RESPONSE
REFAB SWEPT 0.67V
P-P
R
L
= 5kΩ
C
L
= 100pF
MAX5253-06
SUPPLY CURRENT
vs. TEMPERATURE
950
900
SUPPLY CURRENT (µA)
850
800
750
700
650
600
550
CODE = FFF HEX
500
-55 -40 -20 0 20 40 60 80 100 125
TEMPERATURE (°C)
MAX5253-04
1
0
-1
INL (LSB)
-2
-3
-4
R
L
= 5kΩ
-5
0
0.5
1.0
1.5
2.0
REFERENCE VOLTAGE (V)
0
1000
-4
RELATIVE OUTPUT (dB)
-8
-12
-16
2.5
-20
100
560k
1.12M
1.68M
2.24M
2.8M
FREQUENCY (Hz)
4
_______________________________________________________________________________________
+3V, Quad, 12-Bit Voltage-Output DAC
with Serial Interface
____________________________Typical Operating Characteristics (continued)
(V
DD
= +3.3V, T
A
= +25°C, unless otherwise noted.)
MAX5253
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX5253-05
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. LOAD
MAX5253-02
OUTPUT FFT PLOT
V
REF
= 1kHz, 0.006V TO 1.6V
R
L
= 5kΩ
C
L
= 100pF
MAX5253-10
1000
950
SUPPLY CURRENT (µA)
900
0.50
0.45
0.40
THD + NOISE (%)
0.35
0.30
0.25
0.20
0.15
0.10
DAC CODE = ALL 1s
REFAB = 1V
P-P
R
L
= 5kΩ
C
L
= 100pF
0
850
800
750
700
650
600
550
500
2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6
SUPPLY VOLTAGE (V)
CODE = FFF HEX
SIGNAL AMPLITUDE (dB)
10
100
-20
-40
-60
-80
0.05
0
0.1
1
FREQUENCY (kHz)
-100
0.5
1.6
2.7
3.8
4.9
6.0
FREQUENCY (kHz)
FULL-SCALE ERROR
vs. LOAD
MAX5253-03
REFERENCE FEEDTHROUGH
AT 1kHz
REFAB INPUT SIGNAL
V
REF
= 1.6V
P-P
AT 1kHz
R
L
= 5kΩ
C
L
= 100pF
MAX5253-11
0
-1
FULL-SCALE ERROR (LSB)
-2
-3
-4
-5
-6
-7
-8
-9
-10
0.01
0.1
1
LOAD (kΩ)
10
0
SIGNAL AMPLITUDE (dB)
-20
-40
-60
OUTA FEEDTHROUGH
-80
100
-100
0.5
1.2
1.9
2.6
3.3
4.0
FREQUENCY (kHz)
_______________________________________________________________________________________
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