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ADS8638SRGER bảng dữ liệu(PDF) 4 Page - Texas Instruments

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tên linh kiện ADS8638SRGER
Giải thích chi tiết về linh kiện  12-Bit, 1MSPS, 4-/8-Channel, Bipolar-Input, SAR Analog-to-Digital Converter with Software-Selectable Ranges
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ADS8638SRGER bảng dữ liệu(HTML) 4 Page - Texas Instruments

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ADS8634
ADS8638
SBAS541A
– MAY 2011 – REVISED AUGUST 2011
www.ti.com
ELECTRICAL CHARACTERISTICS: ADS8634, ADS8638 (continued)
Minimum/maximum specifications at TA = –40°C to +125°C, fSAMPLE = 1MSPS, HVDD = 10V to 15V, HVSS = –10V to –15V,
AVDD = 4.75V to 5.25V, DVDD = 2.7V to 3.6V, and VREF = 2.5V, unless otherwise noted. Typical specifications at +25°C,
fSAMPLE = 1MHz, HVDD = 10V, HVSS = –10V, AVDD = 3.3V, DVDD = 3.3V, and VREF = 2.5V, unless otherwise noted.
ADS8634, ADS8638
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
DYNAMIC CHARACTERISTICS
At 1kHz
–81
dB
Total harmonic distortion(6) (THD)
At 100kHz
–80
dB
At 1kHz
71
71.8
dB
Signal-to-noise ratio (SNR)
At 100kHz
71.1
dB
At 1kHz
70.1
71.3
dB
Signal-to-noise and distortion ratio
(SINAD)
At 100kHz
70.5
dB
At 1kHz
–83
dB
Spurious-free dynamic range (SFDR)
At 100kHz
–80
dB
Full-power bandwidth
At
–3dB
1
MHz
DIGITAL INPUT/OUTPUT
Logic family
CMOS
V
VIH
0.7 DVDD
V
VIL
0.3 DVDD
V
Logic level
VOH
With 20pF load on SDO
0.8 DVDD
V
VOL
With 20pF load on SDO
0.2 DVDD
V
EXTERNAL VOLTAGE REFERENCE
3.0 or
Reference input
AVDD,
VREF
2.0
V
voltage range
whichever
is less
INTERNAL VOLTAGE REFERENCE
Reference output voltage
2.5
V
Initial accuracy
–1.2
1.2
%
Temperature drift
20
ppm/
°C
Drive current, source(7)
750
µA
Drive current, sink
20
µA
Driver output impedance
1
Ω
Turn-on settling time
With 10
µF decoupling capacitor from REF to REFGND
9
ms
INTERNAL TEMPERATURE SENSOR
Absolute accuracy
5
% of FSR
(6)
Calculated on the first nine harmonics of the input frequency.
(7)
Internal reference output is short-circuit protected. In case of short-circuit to ground, the drive current is limited to this value.
4
Submit Documentation Feedback
Copyright
© 2011, Texas Instruments Incorporated
Product Folder Link(s): ADS8634 ADS8638


Số phần tương tự - ADS8638SRGER

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