ADS8324_14 Datasheet, PDF (1/20 Pages) Texas Instruments – 14-Bit, High Speed, 1.8V MicroPower Sampling ANALOG-TO-DIGITAL CONVERTER

ADS8324
SBAS172A – AUGUST 2001 – REVISED MARCH 2004
14-Bit, High Speed, 1.8V MicroPower Sampling
ANALOG-TO-DIGITAL CONVERTER
FEATURES
● BIPOLAR INPUT RANGE
● 1.8V OPERATION
● 50kHz SAMPLING RATE
● MICRO POWER:
5.0mW at 2.7V
2.5mW at 1.8V
● POWER DOWN: 3μA max
● MSOP-8 PACKAGE
● PIN-COMPATIBLE TO 12-BIT ADS7817
● SERIAL (SPI/SSI) INTERFACE
APPLICATIONS
● BATTERY OPERATED SYSTEMS
● REMOTE DATA ACQUISITION
● ISOLATED DATA ACQUISITION
● SIMULTANEOUS SAMPLING,
MULTI-CHANNEL SYSTEMS
● INDUSTRIAL CONTROLS
● ROBOTICS
● VIBRATION ANALYSIS
DESCRIPTION
The ADS8324 is a 14-bit, sampling Analog-to-Digital (A/D)
converter with tested specifications using a 1.8V supply
voltage. It requires very little power, even when operating at
the full 50kHz data rate. At lower data rates, the high speed
of the device enables it to spend most of its time in the
power-down mode—the average power dissipation is less
than 1mW at 10kHz data rate.
The ADS8324 also features a synchronous serial (SPI/SSI
compatible) interface, and a differential input. The refer-
ence voltage can be set to any level within the range of
500mV to V_CC/2.
Ultra-low power and small size make the ADS8324 ideal
for portable and battery-operated systems. It is also a
perfect fit for remote data acquisition modules, simulta-
neous multi-channel systems, and isolated data acquisi-
tion. The ADS8324 is available in an MSOP-8 package.
V_REF
+In
–In
SAR
ADS8324
S/H Amp
CDAC
Comparator
Serial
Interface
D_OUT
DCLOCK
CS/SHDN
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