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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
Typical Operating Circuit
19-5933; Rev 0; 6/11
Ordering Information appears at end of data sheet.
For related parts and recommended products to use with this part,
refer to www.maximintegrated.com/DS3911.related.
DS3911
I2C
SLAVE
TEMP
SENSOR
SDA
VCC
GND
3.3V
RPU
SCL
I2C
MASTER
A1
A0
VCC
3.3V
0.1F
VREF
GND
VREF
3.3V
0.1F
R1
100
R2
2.5V
10-BIT
DAC
EEPROM
LUT
DAC0
MODSET
LASER
DRIVER
APCSET
C1
C2
10-BIT
DAC
EEPROM
LUT
DAC1
MODSET
LASER
DRIVER
APCSET
10-BIT
DAC
EEPROM
LUT
DAC2
MODSET
LASER
DRIVER
APCSET
10-BIT
DAC
EEPROM
LUT
DAC3
MODSET
LASER
DRIVER
APCSET
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
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