Specifications

15PLCs: Featured Products
System Flexibility and Reduced Cost with
Multichannel DACs
MAX5134/MAX5135/MAX5136/MAX5137
The MAX5134–MAX5137 are pin- and software-compatible 16-bit and 12-bit
DACs oering low power, buered voltage output, and high linearity. They use
a precision internal reference or a precision external reference for rail-to-rail
operation. The MAX5134–MAX5137 accept a wide 2.7V to 5.25V supply voltage
range to accommodate most low-power and low-voltage applications.
Benefits
• Flexible upgrade path
◦ 2-/4-channel, 16-/12-bit DACs are pin
and software compatible
• Save cost and board space
◦ Parts accept an SPI-/QSPI-/
MICROWIRE-/DSP-compatible serial
interface
◦ 4mm x 4mm package
◦ A READY output enables easy
daisy-chaining of several MAX5134–
MAX5137 and other compatible
devices
◦ Double-buffered hardware
and software LDAC provides
simultaneous output updates
• Improve safety
◦ Hardware input for resetting the
DAC outputs to zero or midscale on
power-up or reset
MAX5134/MAX5136
MAX5135/MAX5137
16-/12-BIT
16-/12-BIT
16-/12-BIT
16-/12-BIT
IN OUT
INTERNAL
REFERENCE
DOUBLE-
BUFFERED
REGISTERS
SPI
INTERFACE
CS
SCLK
DV
DD
M/ZAV
DD
OUT_4
OUT_3
OUT_2
OUT_1
DIN
RDY
LDAC
Integrated precision
reference (10ppm/°C)
RDY pin to facilitate
daisy-chaining
Asynchronous LDAC pin
to simultaneously
update all outputs
Selectable pin to power
up to zero or midscale
Block diagram of the MAX5134–MAX5137 DACs.