ADS7831 Datasheet, PDF (1/10 Pages) Burr-Brown (TI) – 12-Bit 600kHz Sampling CMOS ANALOG-to-DIGITAL CONVERTER

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FPO ^ADS7831
ADS7831
ADS7831
12-Bit 600kHz Sampling CMOS
ANALOG-to-DIGITAL CONVERTER
FEATURES
q 600kHz THROUGHPUT RATE
q STANDARD ±2.5V INPUT RANGE
q 69dB min SINAD WITH 250kHz INPUT
q COMPLETE WITH S/H, REF, CLOCK, ETC.
q PARALLEL DATA w/LATCHES
q FULLY SPECIFIED –40°C TO +85°C
q 15MHz –3dB BANDWIDTH
q 28-PIN 0.3" PDIP AND SOIC
DESCRIPTION
The ADS7831 is a complete 12-bit sampling A/D
using state-of-the-art CMOS structures. It contains a
complete 12-bit capacitor-based SAR A/D with inher-
ent S/H, reference, clock, interface for microprocessor
use, and three-state output drivers.
The ADS7831 is specified at a 600kHz sampling rate,
and guaranteed over the full temperature range. A
±2.5V input range and excellent Nyquist performance
provide an optimum solution in ±5V supply systems.
The 28-pin ADS7831 is available in a plastic 0.3" DIP
and in an SOIC, both fully specified for operation over
the industrial –40°C to +85°C range.
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
FREQUENCY SPECTRUM
(16384 Point FFT; f_IN = 250kHz, –0.5dB)
THD : –91dB
SNR : 72dB
SFDR : 94dB
2nd Harmonic : –98dB
3rd Harmonic : –94dB
3
2
75
150
225
Frequency (kHz)
SFDR: 94dBc
300
International Airport Industrial Park • Mailing Address: PO Box 11400 • Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706
Tel: [phone] • Twx: 910-952-1111 • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]
© 1994 Burr-Brown Corporation
PDS-1275
1
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