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ADS7841E Datasheet(PDF) 3 Page - Texas Instruments

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Part # ADS7841E
Description  12-Bit, 4-Channel Serial Output Sampling ANALOG-TO-DIGITAL CONVERTER
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

ADS7841E Datasheet(HTML) 3 Page - Texas Instruments

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ADS7841
3
SBAS084B
✻ Same specifications as ADS7841E, P.
NOTE: (1) LSB means Least Significant Bit. With VREF equal to +5.0V, one LSB is 1.22mV. (2) First five harmonics of the test frequency. (3) Auto power-down mode
(PD1 = PD0 = 0) active or SHDN = GND.
ELECTRICAL CHARACTERISTICS: +5V
At TA = TMIN to TMAX, +VCC = +5V, VREF = +5V, fSAMPLE = 200kHz, and fCLK = 16 • fSAMPLE = 3.2MHz, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
ANALOG INPUT
Full-Scale Input Span
Positive Input - Negative Input
0VREF
✻✻
V
Absolute Input Range
Positive Input
–0.2
+VCC +0.2
✻✻
V
Negative Input
–0.2
+1.25
✻✻
V
Capacitance
25
✻✻
pF
Leakage Current
200
200
200
nA
SYSTEM PERFORMANCE
Resolution
12
✻✻
Bits
No Missing Codes
12
12
11
Bits
Integral Linearity Error
±2
±1
2
LSB(1)
Differential Linearity Error
±0.8
±0.5
±1
±0.8
LSB
Offset Error
±3
✻✻
LSB
Offset Error Match
0.15
1.0
✻✻
✻✻
LSB
Gain Error
±4
±3
±4
LSB
Gain Error Match
0.1
1.0
✻✻
✻✻
LSB
Noise
30
✻✻
µVrms
Power-Supply Rejection
70
✻✻
dB
SAMPLING DYNAMICS
Conversion Time
12
✻✻
Clk Cycles
Acquisition Time
3
✻✻
Clk Cycles
Throughput Rate
200
✻✻
kHz
Multiplexer Settling Time
500
✻✻
ns
Aperture Delay
30
✻✻
ns
Aperture Jitter
100
✻✻
ps
DYNAMIC CHARACTERISTICS
Total Harmonic Distortion(2)
VIN = 5Vp-p at 10kHz
–78
–72
–80
–76
–78
–72
dB
Signal-to-(Noise + Distortion)
VIN = 5Vp-p at 10kHz
68
71
70
72
68
71
dB
Spurious-Free Dynamic Range VIN = 5Vp-p at 10kHz
72
79
76
81
72
79
dB
Channel-to-Channel Isolation
VIN = 5Vp-p at 50kHz
120
120
dB
REFERENCE INPUT
Range
0.1
+VCC
✻✻
V
Resistance
DCLK Static
5
✻✻
G
Input Current
40
100
✻✻
✻✻
µA
fSAMPLE = 12.5kHz
2.5
✻✻
µA
DCLK Static
0.001
3
✻✻
✻✻
µA
DIGITAL INPUT/OUTPUT
Logic Family
CMOS
✻✻
Logic Levels
VIH
| IIH | ≤ +5µA
3.0
5.5
✻✻
V
VIL
| IIL | ≤ +5µA
–0.3
+0.8
✻✻
V
VOH
IOH = –250µA
3.5
✻✻
V
VOL
IOL = 250µA
0.4
✻✻
V
Data Format
Straight Binary
✻✻
PWR SUPPLY REQUIREMENTS
+VCC
Specified Performance
4.75
5.25
✻✻
V
Quiescent Current
550
900
✻✻
µA
fSAMPLE = 12.5kHz
300
✻✻
µA
Power-Down Mode(3), CS = +VCC
3
✻✻
µA
Power Dissipation
4.5
✻✻
mW
TEMPERATURE RANGE
Specified Performance
–40
+85
✻✻
+125
°C
ADS7841E, P
ADS7841EB, PB
ADS7841ES


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