DS3911 Datasheet, PDF (1/24 Pages) Maxim Integrated Products – Temperature-Controlled, Nonvolatile, I2C Quad DAC

19-5933; Rev 0; 6/11
DS3911
Temperature-Controlled, Nonvolatile,
I²C Quad DAC
General Description
The DS3911 is a quad, 10-bit delta-sigma output, nonvol-
atile (NV) controller that features an on-chip temperature
sensor and associated analog-to-digital converter (ADC).
The integrated temperature sensor indexes the up to
2NC resolution NV lookup tables (LUTs), encompassing
a -40NC to +100NC temperature range. The LUT directly
drives the delta-sigma digital-to-analog converter (DAC)
outputs. This flexible LUT-based architecture allows the
device to provide a temperature-compensated DAC out-
put with arbitrary slope. Programming is accomplished
by an I²C-compatible interface that operates at speeds
of up to 400kHz.
Applications
Active Optical Cables
Optical Transceivers
Linear and Nonlinear Compensation
Instrumentation and Industrial Controls
Features
S Four 10-Bit Delta-Sigma Outputs
S On-Chip Temperature Sensor and ADC
S Four Temperature-Indexed LUTs, Up to 2NC
Resolution
S I²C-Compatible Serial Interface
S Address Pins Allow Up to Four DS3911s to Share
the Same I²C Bus
S 2.8V to 5.5V Digital Supply
S -40NC to +100NC Operating Temperature Range
S 3mm x 5mm, 14-Pin TDFN Package
Ordering Information appears at end of data sheet.
For related parts and recommended products to use with this part,
refer to www.maxim-ic.com/DS3911.related.
Typical Operating Circuit
I²C
MASTER
3.3V
RPU
DS3911
SDA
SCL
I²C
A1
SLAVE
A0
TEMP
SENSOR
VCC
VCC
GND
VREF
VREF
GND
3.3V
0.1µF 3.3V
100Ω
0.1µF
2.5V
EEPROM
LUT
R1
R2
10-BIT DAC0
DAC
C1
C2
MODSET LASER
APCSET DRIVER
EEPROM
LUT
10-BIT DAC1
DAC
MODSET LASER
APCSET DRIVER
EEPROM
LUT
10-BIT DAC2
DAC
MODSET LASER
APCSET DRIVER
EEPROM
LUT
10-BIT DAC3
DAC
MODSET LASER
APCSET DRIVER
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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.