19-1124; Rev 1; 12/96
Low-Power, 13-Bit Voltage-Output DACs
with Serial Interface
__________________General Description
The MAX535/MAX5351 combine a low-power, voltage-
output, 13-bit digital-to-analog converter (DAC) and a
precision output amplifier in an 8-pin µMAX or DIP pack-
age. The MAX535 operates from a single +5V supply
and the MAX5351 operates from a single +3.3V supply.
Both devices draw only 280µA of supply current.
The output amplifier’s inverting input is available to the
user, allowing specific gain configurations, remote
sensing, and high output current capability. This makes
the MAX535/MAX5351 ideal for a wide range of appli-
cations, including industrial process control. Other fea-
tures include a software shutdown and power-on reset.
The serial interface is compatible with either SPI™/
QSPI™ or Microwire™. The DAC has a double-buffered
input, organized as an input register followed by a DAC
register. A 16-bit serial word loads data into the input
register. The DAC register can be updated indepen-
dently or simultaneously with the input register. All logic
inputs are TTL/CMOS-logic compatible and buffered
with Schmitt triggers to allow direct interfacing to opto-
couplers.
______________________________Features
o
13-Bit DAC with Configurable Output Amplifier
o
+5V Single-Supply Operation (MAX535)
+3.3V Single-Supply Operation (MAX5351)
o
Low Supply Current: 0.24mA Normal Operation
2µA Shutdown Mode
o
Available in 8-Pin µMAX
o
Power-On Reset Clears DAC Output to 0V
o
SPI/QSPI and Microwire Compatible
o
Schmitt-Trigger Digital Inputs for Direct
Optocoupler Interface
MAX535/MAX5351
_________________Ordering Information
PART
MAX535ACPA
MAX535BCPA
MAX535ACUA
MAX535BCUA
MAX535BC/D
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
PIN-PACKAGE
8 Plastic DIP
8 Plastic DIP
8 µMAX
†
8 µMAX
Dice*
INL
(LSB)
±1/2
±1
±1/2
±1
±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.
†
Contact factory for availability.
*Dice
are tested at T
A
= +25°C, DC parameters only.
____________________Functional Diagram
GND
V
DD
REF
FB
OUT
DAC
_______________________Pin Configuration
TOP VIEW
DAC
REGISTER
CONTROL
INPUT
REGISTER
CS
DIN
SCLK
OUT 1
CS 2
DIN 3
SCLK 4
8
V
DD
GND
REF
FB
MAX535
MAX5351
7
6
5
16-BIT
SHIFT
REGISTER
MAX535
MAX5351
DIP/µMAX
SPI and QSPI are registered trademarks of Motorola, Inc. Microwire is a registered trademark of National Semiconductor Corp.
________________________________________________________________
Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
Low-Power, 13-Bit Voltage-Output DACs
with Serial Interface
MAX535/MAX5351
ABSOLUTE MAXIMUM RATINGS
V
DD
to GND .................................................................-0.3V, +6V
REF, OUT, FB to GND ................................-0.3V to (V
DD
+ 0.3V)
Digital Inputs to GND ...............................................-0.3V to +6V
Continuous Current into Any Pin.......................................±20mA
Continuous Power Dissipation (T
A
= +70°C)
Plastic DIP (derate 6.90mW/°C above +70°C) .................552mW
µMAX (derate 4.00mW/°C above +70°C) ......................330mW
CERDIP (derate 8.00mW/°C above +70°C) ...................640mW
Operating Temperature Ranges
MAX535_C_A/MAX5351_C_A...............................0°C to +70°C
MAX535_E_A/MAX5351_E_A ............................-40°C to +85°C
MAX535BMJA/MAX5351BMJA .......................-55°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+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: MAX535
(V
DD
= +5V ±10%, REF = 2.5V, GND = 0V, 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 8).)
PARAMETER
Resolution
Integral Nonlinearity
(Note 1)
Differential Nonlinearity
Offset Error
Offset-Error Tempco
Gain Error (Note 1)
Gain-Error Tempco
Power-Supply Rejection Ratio
REFERENCE INPUT
Reference Input Range
Reference Input Resistance
Reference -3dB Bandwidth
Reference Feedthrough
Signal-to-Noise Plus
Distortion Ratio
DIGITAL INPUTS
Input High Voltage
Input Low Voltage
Input Leakage Current
Input Capacitance
V
IH
V
IL
I
IN
C
IN
V
IN
= 0V or V
DD
0.001
8
2.4
0.8
±0.5
V
V
µA
pF
SINAD
V
REF
R
REF
Code dependent, minimum at code 1555 hex
V
REF
= 0.67Vp-p
Input code = all 0s, V
REF
= 3.6Vp-p at 1kHz
V
REF
= 1Vp-p at 25kHz, code = full scale
0
14
20
650
-84
77
V
DD
- 1.4
V
kΩ
kHz
dB
dB
PSRR
4.5V
≤
V
DD
≤
5.5V
SYMBOL
N
MAX535A
INL
DNL
V
OS
TCV
OS
GE
MAX535B
MAX535MJA
Guaranteed monotonic
±0.3
6
-0.5
1
600
±6
CONDITIONS
MIN
13
±0.5
±1.0
±2.0
±1.0
±8
LSB
mV
ppm/°C
LSB
ppm/°C
µV/V
LSB
TYP
MAX
UNITS
Bits
STATIC PERFORMANCE—ANALOG SECTION
MULTIPLYING-MODE PERFORMANCE
2
_______________________________________________________________________________________
Low-Power, 13-Bit Voltage-Output DACs
with Serial Interface
ELECTRICAL CHARACTERISTICS: MAX535 (continued)
(V
DD
= +5V ±10%, REF = 2.5V, GND = 0V, 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 8).)
PARAMETER
DYNAMIC PERFORMANCE
DIGITAL INPUTS
Voltage Output Slew Rate
Output Settling Time
Output Voltage Swing
Current into FB
Time to Valid Operation
on Start-Up
Digital Feedthrough
POWER SUPPLIES
Supply Voltage
Supply Current
Supply Current in Shutdown
Reference Current in Shutdown
TIMING CHARACTERISTICS
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
CS
Fall Delay
CS
Rise to SCLK Rise Hold Time
CS
Pulse Width High
t
CP
t
CH
t
CL
t
CSS
t
CSH
t
DS
t
DH
t
CS0
t
CS1
t
CSW
100
40
40
40
0
40
0
40
40
100
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
V
DD
I
DD
(Note 3)
(Note 3)
4.5
0.28
4
0.001
5.5
0.4
20
±0.5
V
mA
µA
µA
CS
= V
DD
, DIN = 100kHz
SR
To ±1/2LSB, V
STEP
= 2.5V
Rail-to-rail (Note 2)
0.6
16
0 to V
DD
0.001
20
5
±0.1
V/µs
µs
V
µA
µs
nV-s
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX535/MAX5351
Note 1:
Guaranteed from code 22 to code 8191 in unity-gain configuration.
Note 2:
Accuracy is better than 1LSB for V
OUT
= 8mV to V
DD
- 100mV, guaranteed by a power-supply rejection test at the
end points.
Note 3:
R
L
=
∞,
digital inputs at GND or V
DD
.
_______________________________________________________________________________________
3
Low-Power, 13-Bit Voltage-Output DACs
with Serial Interface
MAX535/MAX5351
ELECTRICAL CHARACTERISTICS: MAX5351
(V
DD
= +3.15V to +3.6V, REF = 1.25V, GND = 0V, 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 8).)
PARAMETER
Resolution
Integral Nonlinearity
(Note 4)
Differential Nonlinearity
Offset Error
Offset-Error Tempco
Gain Error (Note 4)
Gain-Error Tempco
Power-Supply Rejection Ratio
REFERENCE INPUT
Reference Input Range
Reference Input Resistance
Reference -3dB Bandwidth
Reference Feedthrough
Signal-to-Noise Plus
Distortion Ratio
DIGITAL INPUTS
Input High Voltage
Input Low Voltage
Input Leakage Current
Input Capacitance
DYNAMIC PERFORMANCE
Voltage Output Slew Rate
Output Settling Time
Output Voltage Swing
Current into FB
Time to Valid Operation
on Start-Up
Digital Feedthrough
POWER SUPPLIES
Supply Voltage
Supply Current
Supply Current in Shutdown
Reference Current in Shutdown
V
DD
I
DD
(Note 6)
(Note 6)
3.15
0.24
1.6
0.001
3.6
0.4
10
±0.5
V
mA
µA
µA
CS
= V
DD
, DIN = 100kHz
SR
To ±1/2LSB, V
STEP
= 1.25V
Rail-to-rail (Note 5)
0.6
16
0 to V
DD
0.001
20
5
±0.1
V/µs
µs
V
µA
µs
nV-s
V
IH
V
IL
I
IN
C
IN
V
IN
= 0V or V
DD
0.001
8
2.4
0.6
±0.5
V
V
µA
pF
SINAD
V
REF
R
REF
Code dependent, minimum at code 1555 hex
V
REF
= 0.67Vp-p
Input code = all 0s, V
REF
= 1.9Vp-p at 1kHz
V
REF
= 1Vp-p at 25kHz, code = full scale
0
14
20
650
-84
72
V
DD
- 1.4
V
kΩ
kHz
dB
dB
PSRR
SYMBOL
N
MAX5351A
INL
DNL
V
OS
TCV
OS
GE
MAX5351B
MAX5351MJA
Guaranteed monotonic
±0.3
6
-0.5
1
600
±6
CONDITIONS
MIN
13
±1
±2
±4
±1.0
±8
LSB
mV
ppm/°C
LSB
ppm/°C
µV/V
LSB
TYP
MAX
UNITS
Bits
STATIC PERFORMANCE—ANALOG SECTION
MULTIPLYING-MODE PERFORMANCE
(V
DD
= +3.3V)
4
_______________________________________________________________________________________
Low-Power, 13-Bit Voltage-Output DACs
with Serial Interface
ELECTRICAL CHARACTERISTICS: MAX5351 (continued)
(V
DD
= +3.15V to +3.6V, REF = 1.25V, GND = 0V, 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 8).)
PARAMETER
TIMING CHARACTERISTICS
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
CS
Fall Delay
CS
Rise to SCLK Rise Hold Time
CS
Pulse Width High
t
CP
t
CH
t
CL
t
CSS
t
CSH
t
DS
t
DH
t
CS0
t
CS1
t
CSW
100
40
40
40
0
40
0
40
40
100
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX535/MAX5351
Note 4:
Guaranteed from code 44 to code 8191 in unity-gain configuration.
Note 5:
Accuracy is better than 1LSB for V
OUT
= 8mV to V
DD
- 150mV, guaranteed by a power-supply rejection test at the
end points.
Note 6:
R
L
=
∞,
digital inputs at GND or V
DD
.
_______________________________________________________________________________________
5
