THS12082 Datasheet, PDF (7/38 Pages) Texas Instruments – 12-BIT, 8 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTERS

THS12082
12-BIT, 8 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTERS
SLAS271 – MAY 2000
electrical characteristics over recommended operating conditions, V_REF = internal, f_s = 8 MSPS,
f_I = 2 MHz at –1dBFS (unless otherwise noted)
ac specifications, AV_DD = 5 V, BV_DD = DV_DD = 3.3 V, C_L < 30 pF
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
SINAD Signal-to-noise ratio + distortion
Differential mode
63
68
dB
Single-ended mode (see Note 1)
64
dB
SNR Signal-to-noise ratio
Differential mode
64
69
dB
Single-ended mode (see Note 1)
65
dB
THD Total harmonic distortion
Differential mode
Single-ended mode
–73 –69 dB
–73 –69 dB
ENOB
(SNR)
Effective number of bits
Differential mode
10.3
11
Bits
Single-ended mode (see Note 1)
10.4
Bits
SFDR Spurious free dynamic range
Differential mode
Single-ended mode
68
75
dB
68
75
dB
Analog Input
Full-power bandwidth with a source impedance of
150 Ω in differential configuration.
Full scale sinewave, –3 dB
96
MHz
Full-power bandwidth with a source impedance of
150 Ω in single-ended configuration.
Full scale sinewave, –3 dB
54
MHz
Small-signal bandwidth with a source impedance of
150 Ω in differential configuration.
100 mVpp sinewave, –3 dB
96
MHz
Small-signal bandwidth with a source impedance of
150 Ω in single-ended configuration.
100 mVpp sinewave, –3 dB
54
MHz
NOTE 1: The SNR (ENOB) and SINAD is degraded typically by 2 dB in single-ended mode when the reading of data is asynchronous to the
sampling clock.
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