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Analog Devices Semiconductor Electronic Components Datasheet

ADT7517-KGD Datasheet

SPI-/I2C-Compatible Temperature Sensor

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ADT7517-KGD pdf
Known Good Die
SPI-/I2C-Compatible Temperature Sensor
with 4-Channel ADC and Quad Voltage Output
ADT7517-KGD
FEATURES
GENERAL DESCRIPTION
Four 10-bit DACs
Buffered voltage output
Guaranteed monotonic by design over all codes
10-bit temperature-to-digital converter
10-bit, 4-channel ADC
DC input bandwidth
Input range: 0 V to 2.28 V
Temperature range: −40°C to +120°C
Temperature sensor accuracy: ±3°C typical
Supply range: 2.7 V to 5.5 V
DAC output range: 0 V to VDD
The ADT7517-KGD combines a 10-bit temperature-to-digital
converter, a 10-bit, 4-channel ADC, and a quad 10-bit DAC in die
form. The ADT7517-KGD also includes a band gap temperature
sensor and a 10-bit ADC to monitor and digitize the temperature
reading to a resolution of 0.25°C.
The ADT7517-KGD operates from a single 2.7 V to 5.5 V supply.
The input voltage range on the ADC channels is 0 V to 2.28 V, and
the input bandwidth is dc. The reference for the ADC channels is
derived internally. The output voltage of the DAC ranges from
0 V to VDD, with an output voltage settling time of 7 μs typical.
Power-down current: <10 μA
The ADT7517-KGD provides two serial interface options: a 4-wire
Internal 2.28 VREF option
Double-buffered input logic
serial interface that is compatible with SPI, QSPI™, MICROWIRE®,
and DSP interface standards, and a 2-wire SMBus/I2C interface.
Buffered reference input
The ADT7517-KGD features a standby mode that is controlled
Power-on reset to 0 V DAC output
through the serial interface.
Simultaneous update of outputs (LDAC function)
On-chip, rail-to-rail output buffer amplifier
Compatible with SPI, I2C, QSPI, MICROWIRE, and DSP
Support for SMBus packet error checking (PEC)
Known good die (KGD): a die that is tested and guaranteed
over the full specifications of the data sheet
APPLICATIONS
Process control
Smart battery chargers
The reference for the four DACs is derived either internally or
from a reference pad. The outputs of all DACs can be updated
simultaneously using the software LDAC function or the external
LDAC pad. The ADT7517-KGD incorporates a power-on reset
circuit, ensuring that the DAC output powers up to 0 V and
remains at 0 V until a valid write takes place.
Additional application and technical information can be found
in the ADT7517 data sheet.
Portable equipment
FUNCTIONAL BLOCK DIAGRAM
D+/AIN1
D–/AIN2
LDAC/AIN3
AIN4
ON-CHIP
TEMPERATURE
SENSOR
INTERNAL
TEMPERATURE
VALUE REGISTER
EXTERNAL
TEMPERATURE
VALUE REGISTER
ANALOG
MUX
VDD
SENSOR
ADC
VDD
VALUE REGISTER
AIN1
VALUE REGISTER
AIN2
VALUE REGISTER
AIN3
VALUE REGISTER
AIN4
VALUE REGISTER
LIMIT
COMPARATOR
STATUS
REGISTERS
ADDRESS POINTER
REGISTER
THIGH LIMIT
REGISTERS
TLOW LIMIT
REGISTERS
VDD LIMIT
REGISTERS
AINHIGH LIMIT
REGISTERS
AINLOW LIMIT
REGISTERS
CONTROL CONFIG. 1
REGISTER
CONTROL CONFIG. 2
REGISTER
CONTROL CONFIG. 3
REGISTER
DAC CONFIGURATION
REGISTERS
LDAC CONFIGURATION
REGISTERS
INTERRUPT MASK
REGISTERS
SPI/SMBus INTERFACE
ADT7517-KGD
DAC A
STRING
REGISTERS DAC A
DAC B
STRING
REGISTERS DAC B
DAC C
STRING
REGISTERS DAC C
DAC D
STRING
REGISTERS DAC D
GAIN
SELECT
LOGIC
POWER-
DOWN
LOGIC
VOUT-A
VOUT-B
VOUT-C
VOUT-D
INT/INT
INTERNAL
REFERENCE
VDD
GND
CS SCL/SCLK SDA/DIN DOUT/ADD
Figure 1.
LDAC/AIN3 VREF-IN
Rev. A
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2013–2014 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com


Analog Devices Semiconductor Electronic Components Datasheet

ADT7517-KGD Datasheet

SPI-/I2C-Compatible Temperature Sensor

No Preview Available !

ADT7517-KGD pdf
ADT7517-KGD
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
DAC AC Characteristics.............................................................. 6
REVISION HISTORY
10/14—Rev. 0 to Rev. A
Change to Bond Pad Composition Value, Table 6 ..................... 11
8/13—Revision 0: Initial Version
Known Good Die
Timing Diagrams ..........................................................................7
Absolute Maximum Ratings ............................................................8
ESD Caution...................................................................................8
Pin Configuration and Function Descriptions..............................9
Outline Dimensions ....................................................................... 11
Die Specifications and Assembly Recommendations ........... 11
Ordering Guide .......................................................................... 11
Rev. A | Page 2 of 11


Part Number ADT7517-KGD
Description SPI-/I2C-Compatible Temperature Sensor
Maker Analog Devices
Total Page 11 Pages
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