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ADS7828EB2K5 Arkusz danych(PDF) 4 Page - Texas Instruments

Numer części ADS7828EB2K5
Szczegółowy opis  12-Bit, 8-Channel Sampling ANALOG-TO-DIGITAL CONVERTER with I2C Interface
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Producent  TI [Texas Instruments]
Strona internetowa  http://www.ti.com
Logo TI - Texas Instruments

ADS7828EB2K5 Arkusz danych(HTML) 4 Page - Texas Instruments

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ADS7828
4
SBAS181C
www.ti.com
NOTES: (1) LSB means Least Significant Bit. With VREF equal to 5.0V, 1LSB is 1.22mV.
(2) THD measured out to the 9th-harmonic.
ANALOG INPUT
Full-Scale Input Scan
Positive Input - Negative Input
0
VREF
0VREF
V
Absolute Input Range
Positive Input
–0.2
+VDD + 0.2
–0.2
+VDD + 0.2
V
Negative Input
–0.2
+0.2
–0.2
+0.2
V
Capacitance
25
25
pF
Leakage Current
±1
±1
µA
SYSTEM PERFORMANCE
No Missing Codes
12
12
Bits
Integral Linearity Error
±1.0
±2
±0.5
±1LSB(1)
Differential Linearity Error
±1.0
±0.5
–1, +2
LSB
Offset Error
±1.0
±3
±0.75
±2
LSB
Offset Error Match
±1
±1
LSB
Gain Error
±1.0
±3
±0.75
±2
LSB
Gain Error Match
±1
±1
LSB
Noise
33
33
µVRMS
Power-Supply Rejection
82
82
dB
SAMPLING DYNAMICS
Throughput Frequency
High Speed Mode: SCL = 3.4MHz
50
50
kHz
Fast Mode: SCL = 400kHz
8
8
kHz
Standard Mode, SCL = 100kHz
2
2
kHz
Conversion Time
66
µs
AC ACCURACY
Total Harmonic Distortion
VIN = 2.5VPP at 10kHz
–82
–82
dB (2)
Signal-to-Ratio
VIN = 2.5VPP at 10kHz
72
72
dB
Signal-to-(Noise+Distortion) Ratio
VIN = 2.5VPP at 10kHz
71
71
dB
Spurious-Free Dynamic Range
VIN = 2.5VPP at 10kHz
86
86
dB
Isolation Channel-to-Channel
120
120
dB
VOLTAGE REFERENCE OUTPUT
Range
2.475
2.5
2.525
2.475
2.5
2.525
V
Internal Reference Drift
15
15
ppm/
°C
Output Impedance
Internal Reference ON
110
110
Internal Reference OFF
1
1
G
Quiescent Current
Int. Ref. ON, SCL and SDA pulled HIGH
1300
1300
µA
VOLTAGE REFERENCE INPUT
Range
0.05
VDD
0.05
VDD
V
Resistance
11
G
Current Drain
High Speed Mode: SCL = 3.4MHz
20
20
µA
DIGITAL INPUT/OUTPUT
Logic Family
CMOS
CMOS
Logic Levels:
VIH
+VDD • 0.7
+VDD + 0.5 +VDD • 0.7
+VDD + 0.5
V
VIL
–0.3
+VDD • 0.3
–0.3
+VDD • 0.3
V
VOL
Min. 3mA Sink Current
0.4
0.4
V
Input Leakage: I
IH
V
IH = +VDD +0.5
10
10
µA
I
IL
V
IL = -0.3
–10
–10
µA
Data Format
Straight
Straight
Binary
Binary
ADS7828 HARDWARE ADDRESS
10010
10010
Binary
POWER-SUPPLY REQUIREMENTS
Power-Supply Voltage, +VDD
Specified Performance
4.75
5
5.25
4.75
5
5.25
V
Quiescent Current
High Speed Mode: SCL = 3.4MHz
750
1000
750
1000
µA
Fast Mode: SCL = 400kHz
300
300
µA
Standard Mode, SCL = 100kHz
150
150
µA
Power Dissipation
High Speed Mode: SCL = 3.4MHz
3.75
5
3.75
5
mW
Fast Mode: SCL = 400kHz
1.5
1.5
mW
Standard Mode, SCL = 100kHz
0.75
0.75
mW
Power-Down Mode
High Speed Mode: SCL = 3.4MHz
400
400
µA
w/Wrong Address Selected
Fast Mode: SCL = 400kHz
150
150
µA
Standard Mode, SCL = 100kHz
35
35
µA
Full Power-Down
SCL Pulled HIGH, SDA Pulled HIGH
400
3000
400
3000
nA
TEMPERATURE RANGE
Specified Performance
–40
+85
–40
+85
°C
ELECTRICAL CHARACTERISTICS: +5V
At TA = –40°C to +85°C, +VDD = +5.0V, VREF = External +5.0V, SCL Clock Frequency = 3.4MHz (High-Speed Mode), unless otherwise noted.
ADS7828E
ADS7828EB
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS


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