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| ADS8471_15 Datasheet, PDF (4/31 Pages) Texas Instruments – 16-BIT, 1-MSPS, PSEUDO-BIPOLAR, UNIPOLAR INPUT, MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH PARALLEL INTERFACE AND REFERENCE | |||
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ADS8471
SLAS517 â DECEMBER 2007
www.ti.com
SPECIFICATIONS (Continued)
TA = â40°C to 85°C, +VA = 5 V, +VBD = 3 V or 5 V, Vref = 4.096 V, fSAMPLE = 1 MSPS (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
MAX
DYNAMIC CHARACTERISTICS
ADS8471I
ADS8471IB
VIN = 4 Vpp at 2 kHz
â110
â112
THD
Total harmonic distortion(1)
ADS8471I
ADS8471IB
VIN = 4 Vpp at 20 kHz
â105
â107
ADS8471I
ADS8471IB
VIN = 4 Vpp at 100 kHz
â101
â102
ADS8471I
93
ADS8471IB
VIN = 4 Vpp at 2 kHz
93
SNR Signal-to-noise ratio(1)
ADS8471I
ADS8471IB
VIN = 4 Vpp at 20 kHz
92.5
92.7
ADS8471I
ADS8471IB
VIN = 4 Vpp at 100 kHz
91.5
91.6
ADS8471I
93
ADS8471IB
VIN = 4 Vpp at 2 kHz
93
SINAD Signal-to-noise + distortion (1)
ADS8471I
ADS8471IB
VIN = 4 Vpp at 20 kHz
92.4
92.6
ADS8471I
ADS8471IB
VIN = 4 Vpp at 100 kHz
91
91.1
ADS8471I
112
ADS8471IB
VIN = 4 Vpp at 2 kHz
114
SFDR Spurious free dynamic range (1)
ADS8471I
ADS8471IB
VIN = 4 Vpp at 20 kHz
107
109
ADS8471I
102
ADS8471IB
VIN = 4 Vpp at 100 kHz
103
â3dB Small signal bandwidth
15
VOLTAGE REFERENCE INPUT
Vref
Reference voltage at REFIN,
Reference resistance(2)
3.0 4.096 +VA â 0.8
500
Reference current drain
fs = 1 MHz
1
(1) Calculated on the first nine harmonics of the input frequency.
(2) Can vary ±20%
UNIT
dB
dB
dB
dB
MHz
V
kâ¦
mA
4
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Product Folder Link(s): ADS8471
Copyright © 2007, Texas Instruments Incorporated
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