(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 I
2
C-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).
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.
Benefits and Features
S
Four High-Accuracy DAC Channels
12-Bit Accuracy Without Adjustment
LSB INL Buffered Voltage Output
±1
Guaranteed Monotonic Over All Operating
Conditions
Independent Mode Settings for Each DAC
S
Three Precision Selectable Internal References
2.048V, 2.500V, or 4.096V
S
Internal Output Buffer
Rail-to-Rail Operation with External Reference
4.5µs Settling Time
Outputs Directly Drive 2kI Loads
S
Small 5mm x 4.4mm 14-Pin TSSOP or Ultra-Small
1.6mm x 2.2mm 12-Bump WLP Package
S
Wide 2.7V to 5.5V Supply Range
S
Separate 1.8V to 5.5V V
DDIO
Power-Supply Input
S
Fast 400kHz I
2
C-Compatible, 2-Wire Serial
Interface
S
Power-On-Reset to Zero-Scale DAC Output
S
LDAC
and
CLR
For Asynchronous Control
S
Three Software-Selectable Power-Down Output
Impedances
1kI, 100kI, or High Impedance
Functional Diagram
Applications
V
DDIO
V
DD
REF
Programmable Voltage and Current Sources
Gain and Offset Adjustment
Automatic Tuning and Optical Control
Power Amplifier Control and Biasing
Process Control and Servo Loops
Portable Instrumentation
Data Acquisition
SCL
SDA
ADDR0
(ADDR1)
I
2
C SERIAL
INTERFACE
CODE
REGISTER
DAC
LATCH
8 -/10-/12-BIT
DAC
INTERNAL REFERENCE/
EXTERNAL BUFFER
MAX5813
MAX5814
MAX5815
1 OF 4 DAC CHANNELS
BUFFER
OUTA
OUTB
OUTC
CLR
CODE
(LDAC)
CLEAR /
RESET
LOAD
CLEAR/
RESET
POWER-DOWN
100kI
1kI
OUTD
DAC CONTROL LOGIC
POR
Ordering Information
appears at end of data sheet.
( ) TSSOP PACKAGE ONLY
GND
For related parts and recommended products to use with this part, refer to:
www.maximintegrated.com/MAX5813.related
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-6167; Rev 4; 6/13
MAX5813/MAX5814/MAX5815
Ultra-Small, Quad-Channel, 8-/10-/12-Bit Buffered
Output DACs with Internal Reference and I
2
C Interface
ABSOLUTE MAXIMUM RATINGS
V
DD
, V
DDIO
to GND ................................................ -0.3V to +6V
OUT_, REF to GND....0.3V to the lower of (V
DD
+ 0.3V) and +6V
SCL, SDA,
LDAC, CLR
to GND .............................. -0.3V to +6V
ADDR_ to GND............................................-0.3V to the lower of
(V
DDIO
+ 0.3V) and +6V
Continuous Power Dissipation (T
A
= +70NC)
TSSOP (derate at 10mW/NC above 70NC) ...................797mW
WLP (derate at 16.1mW/NC above 70NC) ..................1288mW
Maximum Continuous Current into Any Pin ....................
Q50mA
Operating Temperature Range ........................ -40NC to +125NC
Storage Temperature Range............................ -65NC to +150NC
Lead Temperature (TSSOP only)(soldering, 10s) ...........+300NC
Soldering Temperature (reflow) .................................... +260NC
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional opera-
tion 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.
白光LED光衰原因之荧光粉性能的衰退 到目前，白光 LED、尤其是小功率白光 LED 的发光性能快速衰退已越来越为人们所认识。其实，盲目地夸大宣传，只能将 LED 行业引向歧途，不正视白光 LED 存在的问题，只能延缓白光 LED 应用的发展。只有正视问题、研究问题、尽早解决问题，白光 LED 才能健康、快速发展。 白光 LED 当前面临的一个主要问题就寿命问题。由于白光 LED 的价格尚很...[详细]
PCB设计
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
