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ADS7828EIPWRQ1 Datasheet(PDF) 8 Page - Texas Instruments

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Part # ADS7828EIPWRQ1
Description  12-Bit 8-Channel Sampling Analog-to-Digital Converter
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

ADS7828EIPWRQ1 Datasheet(HTML) 8 Page - Texas Instruments

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ADS7828-Q1
SBAS456B – DECEMBER 2008 – REVISED JANUARY 2016
www.ti.com
6.7 Electrical Characteristics for ADS7828E
+VDD = 5 V, VREF = External 5 V, SCL clock frequency = 3.4 MHz (high-speed mode), over operating free-air temperature
range, unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Analog Input
Ileak
Leakage current
±1
µA
CI
25
pF
Overall Performance
No missing codes
12
bits
Integral linearity error
±1
±2
LSB(1)
Differential linearity error
±1
LSB
Offset error
±1
±3
LSB
Offset error match
±1.5
LSB
Gain error
±1
±3
LSB
Gain error match
±1
LSB
Vn
Noise
RMS
33
µV
PSRR
Power-supply ripple rejection
82
dB
Sampling Dynamics
High-speed mode: SCL = 3.4 MHz
50
Throughput frequency
Fast mode: SCL = 400 kHz
8
kHz
Standard mode: SCL = 100 kHz
2
Conversion time
6
µs
AC Accuracy
THD
Total harmonic distortion(2)
VIN = 25 VPP at 10 kHz
–82
dB
Signal-to-noise ratio
VIN = 25 VPP at 10 kHz
72
dB
Signal-to-(noise + distortion) ratio
VIN = 25 VPP at 10 kHz
71
dB
Spurious-free dynamic range
VIN = 25 VPP at 10 kHz
86
dB
Channel-to-channel isolation
120
dB
Voltage Reference Output
VO
Output voltage
2.475
2.5
2.525
V
Internal reference drift
15
ppm/°C
Internal reference on
110
Ω
zo
Output impedance
Internal reference off
1
G
Ω
IQ
Quiescent current
1300
µA
Voltage Reference Input
rI
Input resistance
1
G
Ω
Current drain
20
µA
Digital Input and Output
VOL
Low-level output voltage
Minimum 3-mA sink current
0.4
V
IIH
High-level input current
VIH = +VDD + 0.5 V
10
µA
IIL
Low-level input current
VIL = –0.3 V
–10
µA
(1)
LSB means Least Significant Bit; with VREF equal to 5 V, one LSB is 1.22 mV.
(2)
THD is measured to the ninth harmonic.
8
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Copyright © 2008–2016, Texas Instruments Incorporated
Product Folder Links: ADS7828-Q1


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