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TS7003 Datasheet(PDF) 7 Page - Silicon Laboratories

Part No. TS7003
Description  A 300ksps, Single-supply, 12-Bit Serial-output ADC
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Maker  SILABS [Silicon Laboratories]
Homepage  http://www.silabs.com
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TS7003 Datasheet(HTML) 7 Page - Silicon Laboratories

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TS7003
TS7003 Rev. 1.0
Page 7
PIN FUNCTIONS
PIN
NAME
FUNCTION
1
VDD
Power Supply Voltage, +2.7V to +3.6V.
2
AIN
Analog Signal Input; Unipolar, 0 to VREF input range.
3
SHDN
Active-Low Shutdown Input. Toggling SHDN high-to-low powers down the TS7003 and reduces
the supply current to 0.2
μA (typ).
4
GND
Analog and Digital Ground. Connect the TS7003’s GND pin at one and only one point to the
system analog ground plane.
5
REF
Reference Voltage for Analog-to-Digital Conversion – an internal 2.5V reference output. Bypass
with a good-quality 4.7
μF capacitor.
6
CS
Active-Low Chip Select. The CS signal initiates the conversion process on its falling edge. When
the CS input is logic high, DOUT is high impedance.
7
DOUT
Serial-Data Output. DOUT toggles state on SCLK’s rising edge and is high impedance when CS
is logic high.
8
SCLK
Serial-Clock Input. The SCLK signal controls the conversion process and transfers output data
at rates up to 4.8MHz.
Figure 1: Output Loading Circuits for DOUT Enable Time (tDOE).
Figure 2: Output Loading Circuits for DOUT Disable Time (tDOD).


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