ADS7834 Datasheet, PDF (1/13 Pages) Burr-Brown (TI) – 12-Bit High Speed Low Power Sampling ANALOG-TO-DIGITAL CONVERTER

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ADS7834
ADS7834
For most current data sheet and other product
information, visit www.burr-brown.com
12-Bit High Speed Low Power Sampling
ANALOG-TO-DIGITAL CONVERTER
FEATURES
q 500kHz THROUGHPUT RATE
q 2.5V INTERNAL REFERENCE
q LOW POWER: 11mW
q SINGLE SUPPLY +5V OPERATION
q DIFFERENTIAL INPUT
q SERIAL INTERFACE
q GUARANTEED NO MISSING CODES
q MINI-DIP-8 AND MSOP-8
q 0V TO V_REF INPUT RANGE
APPLICATIONS
q BATTERY OPERATED SYSTEMS
q DIGITAL SIGNAL PROCESSING
q HIGH SPEED DATA ACQUISITION
q WIRELESS COMMUNICATION SYSTEMS
DESCRIPTION
The ADS7834 is a 12-bit sampling analog-to-digital
converter (A/D) complete with sample/hold, internal
2.5V reference, and synchronous serial interface. Typi-
cal power dissipation is 11mW at a 500kHz through-
put rate. The device can be placed into a power-down
mode which reduces dissipation to just 2.5mW. The
input range is zero to the reference voltage, and the
internal reference can be overdriven by an external
voltage.
Low power, small size, and high-speed make the
ADS7834 ideal for battery operated systems such as
wireless communication devices, portable multi-chan-
nel data loggers, and spectrum analyzers. The serial
interface also provides low-cost isolation for remote
data acquisition. The ADS7834 is available in a plastic
mini-DIP-8 or an MSOP-8 package and is guaranteed
over the –40°C to +85°C temperature range.
SAR
CLK
CONV
+In
–In
S/H Amp
CDAC
Comparator
Serial
Interface
DATA
V_REF
Buffer
Internal
+2.5V Ref
10kΩ ±30%
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©_{1998 Burr-Brown Corporation}
PDS-₁1457B
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