ADS7805 Datasheet, PDF (1/20 Pages) Burr-Brown (TI) – 16-Bit 10ms Sampling CMOS ANALOG-to-DIGITAL CONVERTER

ADS7805
ADS7805
ADS7805
SBAS020D – JANUARY 1996 – REVISED OCTOBER 2006
16-Bit, 10µs Sampling, CMOS
ANALOG-to-DIGITAL CONVERTER
FEATURES
q 100kHz min SAMPLING RATE
q STANDARD ±10V INPUT RANGE
q 86dB min SINAD WITH 20kHz INPUT
q ±3.0 LSB max INL
q DNL: 16 Bits No Missing Codes
q SINGLE +5V SUPPLY OPERATION
q PIN-COMPATIBLE WITH 12-BIT ADS7804
q USES INTERNAL OR EXTERNAL
REFERENCE
q FULL PARALLEL DATA OUTPUT
q 100mW max POWER DISSIPATION
q 0.3" DIP-28 AND SO-28
DESCRIPTION
The ADS7805 is a complete 16-bit sampling, Analog-to-
Digital (A/D) converter using state-of-the-art CMOS struc-
tures. It contains a complete 16-bit, capacitor-based, Suc-
cessive Approximation Register (SAR) A/D converter with
Sample-and-Hold (S/H), reference, clock, interface for micro-
processor use, and 3-state output drivers.
The ADS7805 is specified at a 100kHz sampling rate and
ensured over the full temperature range. Laser-trimmed
scaling resistors provide an industry-standard ±10V input
range while the innovative design allows operation from a
single +5V supply, with power dissipation under 100mW.
The ADS7805 is available in a 0.3" DIP-28 and an SO-28
package. Both are fully specified for operation over the
industrial –25°C to +85°C range; however, they will function
over the –40°C to +85C temperature range.
Clock
Successive Approximation Register and Control Logic
R/C
CS
BYTE
BUSY
±10V Input
20kΩ
10kΩ 4kΩ
CAP
REF
CDAC
Buffer
4kΩ
Internal
+2.5V Ref
Comparator
Output
Latches
and
3-State
Drivers
3-State
Parallel
Data
Bus
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PRODUCTION DATA information is current as of publication date.
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testing of all parameters.
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