ꢋ ꢑꢉ ꢀꢁ ꢗꢇ
ꢋ ꢑꢉ ꢀꢁ ꢗꢁ
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SBAS274E − MARCH 2003 − REVISED JUNE 2004
ELECTRICAL CHARACTERISTICS
All specifications at −40°C to +85°C, AVDD = 5V, DVDD = IOVDD = 3V, f
= 40MHz, External V
REF
= +3V, 2XMODE = low, V
CM
= 2.0V,
CLK
FIFO disabled, and R
= 37kΩ, unless otherwise noted.
BIAS
PARAMETER TEST CONDITIONS
MIN
TYP
MAX
UNIT
Analog Input
0dBFS
1.545V
1.227V
0.774V
0.155V
V
V
V
V
REF
REF
REF
REF
−2dBFS
−6dBFS
−20dBFS
Differential input voltage (V
(AINP − AINN)
)
IN
Common-mode input voltage (V
(AINP + AINN) / 2
)
CM
2.0
V
0dBFS
−0.1
0.1
4.7
4.2
V
V
Absolute input voltage
(AINP or AINN with respect to AGND)
−2dBFS input and smaller
Dynamic Specifications
f
CLK
Data rate
MSPS
5.0ǒ Ǔ
40MHz
f
IN
f
IN
f
IN
f
IN
f
IN
f
IN
f
IN
f
IN
f
IN
f
IN
f
IN
f
IN
f
IN
f
IN
f
IN
f
IN
f
IN
f
IN
f
IN
f
IN
f
IN
f
IN
f
IN
f
IN
f
IN
f
IN
f
IN
= 100kHz, −2dBFS
= 100kHz, −6dBFS
= 100kHz, −20dBFS
= 500kHz, −2dBFS
= 500kHz, −6dBFS
= 500kHz, −20dBFS
= 2MHz, −2dBFS
= 2MHz, −6dBFS
= 2MHz, −20dBFS
= 100kHz, −2dBFS
= 100kHz, −6dBFS
= 100kHz, −20dBFS
= 500kHz, −2dBFS
= 500kHz, −6dBFS
= 500kHz, −20dBFS
= 2MHz, −2dBFS
= 2MHz, −6dBFS
= 2MHz, −20dBFS
= 100kHz, −2dBFS
= 100kHz, −6dBFS
= 100kHz, −20dBFS
= 500kHz, −2dBFS
= 500kHz, −6dBFS
= 500kHz, −20dBFS
= 2MHz, −2dBFS
= 2MHz, −6dBFS
= 2MHz, −20dBFS
88
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
84
62
70
86
83
Signal−to−noise ratio (SNR)
69
84
82
69
−93
−99
−94
−94
−97
−93
−98
−101
−92
86
−85
Total harmonic distortion (THD)
84
62
70
86
83
Signal−to−noise and distortion (SINAD)
69
84
82
69
3
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