EVALUATION KIT AVAILABLE
MAX5113
9-Channel, 14-Bit Current DAC
with SPI Interface
General Description
Features
The MAX5113 is a 14-bit, 9-channel, current-output
digital-to-analog converter (DAC). The device operates
from a low +3.0V power supply and provides 14-bit performance without any adjustment.
S Low 3.0V Supply
S Integrated Multiplexers for Outputs 1 and 2
S Increased Current or Resolution with Outputs
Connected in Parallel
The device’s output ranges are optimized to bias a highpower tunable laser source. Each of the 9 channels provides a current source. Channels 1 and 2 provide 10mA
current. An internal multiplexer switches the outputs of
each channel to one of four external nodes. Channel 3 provides a selectable current of 2mA or 20mA. Channel 4 provides 90mA. Channel 5 provides 180mA. Channel 6 provides a selectable current of -60mA or +300mA. Channel
7 provides 90mA. Channels 8 and 9 provide a selectable
current of 15mA or 35mA. Connect DAC outputs in parallel
to obtain additional current or to achieve higher resolution.
The device contains an internal reference.
S SPI-Compatible Serial Interface
S Internal Reference
S Overtemperature Protection
S Operates Over the -40NC to +105NC Temperature Range
S Available in 36-Bump WLP or 32-Pin TQFN Packages
Applications
Tunable Laser Diode Biasing
Ordering Information
An SPI interface drives the device with clock rates of
up to 25MHz. An active-high asynchronous CLR input
resets DAC codes to zero independent of the serial
interface. The device provides a separate power-supply
input for driving the interface logic.
PART
INTERFACE
PIN-PACKAGE
MAX5113GWX+T
SPI
36 WLP
MAX5113GTJ+
SPI
32 TQFN-EP*
Note: All devices are specified over the -40°C to +105°C
operating temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
The MAX5113 is specified over the -40NC to +105NC
temperature range, and is available in 3mm x 3mm,
36-bump WLP and 5mm x 5mm, 32-pin TQFN packages.
Typical Operating Circuit
VDD
VDD
VDD4
VDD3
CLR
OP1B
16
15
9
VDD
24
VDD
23
22
C2
0.1µF
C9
0.1µF
21
20
19
18
C10
0.1µF
17
OP1A
OP1C
VDD2
OP1D
AGND
OP4
DGND
C4
0.1µF
C1
0.1µF
25
OP2D
26
OP2C
27
OP2B
28
OP2A
29
VDD6
30
OP9
OP5
VDDI
OP7
8
MAX5113
N.C.
7
DOUT
14
6
OP6
OP3
C5
0.1µF
CS
13
5
SCLK
OP8
4
VSS
VDD5
12
3
µC
VSS
DIN
VDD1
2
10
1
VDD7
32
C6
0.1µF
C8
0.1µF
11
DIGITAL POWER
SUPPLY
31
C7
0.1µF
VDD
C3
0.1µF
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-6401; Rev 2; 5/13
