Known Good Die
SPI-/I2C-Compatible Temperature Sensor
with 4-Channel ADC and Quad Voltage Output
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
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.
FUNCTIONAL BLOCK DIAGRAM
CONTROL CONFIG. 1
CONTROL CONFIG. 2
CONTROL CONFIG. 3
REGISTERS DAC A
REGISTERS DAC B
REGISTERS DAC C
REGISTERS DAC D
CS SCL/SCLK SDA/DIN DOUT/ADD
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