19-6167; Rev 0; 2/12
MAX5813/MAX5814/MAX5815
Ultra-Small, Quad-Channel, 8-/10-/12-Bit Buffered
2
Output DACs with Internal Reference and I C Interface
General Description
Benefits and Features
The MAX5813/MAX5814/MAX5815 4-channel, low-power,
8-/10-/12-bit, voltage-output digital-to-analog converters
(DACs) include output buffers and an internal reference
that is selectable to be 2.048V, 2.500V, or 4.096V. The
MAX5813/MAX5814/MAX5815 accept a wide supply
voltage range of 2.7V to 5.5V with extremely low power
(3mW) consumption to accommodate most low-voltage
applications. A precision external reference input allows
rail-to-rail operation and presents a 100kI (typ) load to
an external reference.
The MAX5813/MAX5814/MAX5815 have an I2C-compatible,
2-wire interface that operates at clock rates up to
400kHz. The DAC output is buffered and has a low sup-
ply current of less than 250FA per channel and a low
offset error of Q0.5mV (typ). On power-up, the MAX5813/
MAX5814/MAX5815 reset the DAC outputs to zero, pro-
viding additional safety for applications that drive valves
or other transducers which need to be off on power-up.
The internal reference is initially powered down to allow
use of an external reference. The MAX5813/MAX5814/
MAX5815 allow simultaneous output updates using soft-
ware LOAD commands or the hardware load DAC logic
input (LDAC).
S Four High-Accuracy DAC Channels
12-Bit Accuracy Without Adjustment
ꢀ1 ꢁLB ꢂIꢁ Buꢃꢃered ꢄoltage ꢅutꢆut
ꢀGuaranteed Monotonic ꢅver All ꢅꢆerating
Conditions
ꢀꢂndeꢆendent Mode Lettings ꢃor Each DAC
S Three Precision Lelectable ꢂnternal Reꢃerences
ꢀ2.048ꢄ, 2.500ꢄ, or 4.096ꢄ
S ꢂnternal ꢅutꢆut Buꢃꢃer
ꢀRail-to-Rail ꢅꢆeration with External Reꢃerence
4.5µs Lettling Time
ꢅutꢆuts Directly Drive 2kI ꢁoads
S Lmall 5mm x 4.4mm 14-Pin TLLꢅP or Ultra-Lmall
1.6mm x 2.2mm 12-Bumꢆ WꢁP Package
S Wide 2.7ꢄ to 5.5ꢄ Luꢆꢆly Range
S Leꢆarate 1.8ꢄ to 5.5ꢄ ꢄ
Power-Luꢆꢆly ꢂnꢆut
DDꢂꢅ
S Fast 400kHz ꢂ2C-Comꢆatible, 2-Wire Lerial
ꢂnterꢃace
S Power-ꢅn-Reset to Zero-Lcale DAC ꢅutꢆut
S LDAC and CLR For Asynchronous Control
S Three Loꢃtware-Lelectable Power-Down ꢅutꢆut
ꢂmꢆedances
A clear logic input (CLR) allows the contents of the CODE
and the DAC registers to be cleared asynchronously and
sets the DAC outputs to zero. The MAX5813/MAX5814/
MAX5815 are available in a 14-pin TSSOP and an ultra-
small, 12-bump WLP package and are specified over the
-40NC to +125NC temperature range.
ꢀ1kI, 100kI, or High ꢂmꢆedance
Functional Diagram
V
DDIO
V
REF
DD
Applications
MAX5813
MAX5814
MAX5815
INTERNAL REFERENCE/
EXTERNAL BUFFER
Programmable Voltage and Current Sources
Gain and Offset Adjustment
SCL
SDA
1 OF 4 DAC CHANNELS
Automatic Tuning and Optical Control
Power Amplifier Control and Biasing
Process Control and Servo Loops
Portable Instrumentation
CODE
REGISTER
DAC
LATCH
8-/10-/12-BIT
DAC
ADDR0
(ADDR1)
OUTA
OUTB
OUTC
OUTD
BUFFER
2
C SERIAL
INTERFACE
I
CLR
CLEAR/
RESET
CLEAR/
RESET
CODE
LOAD
100kI
1kI
(LDAC)
POWER-DOWN
DAC CONTROL LOGIC
Data Acquisition
POR
GND
Ordering Information appears at end of data sheet.
( ) TSSOP PACKAGE ONLY
For related parts and recommended products to use with this part, refer to: www.maxim-ic.com/MAX5813.related
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1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.