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ADS8317 Scheda tecnica(PDF) 3 Page - Texas Instruments

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Il numero della parte ADS8317
Spiegazioni elettronici  16-Bit, High-Speed, 2.7V to 5.5V microPower Sampling ANALOG-TO-DIGITAL CONVERTER
PDF  29 Pages
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Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

ADS8317 Scheda tecnica(HTML) 3 Page - Texas Instruments

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RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS: VDD = +5V
ADS8317
SBAS356A – JUNE 2007 – REVISED SEPTEMBER 2007
MIN
TYP
MAX
UNIT
Low-voltage levels
2.7
3.6
V
Supply voltage, GND to VDD
5V logic levels
4.5
5.0
5.5
V
Reference input voltage
1
VDD/2
V
–IN to GND
–0.2
VDD + 0.2
V
Analog input voltage
+IN to GND
–0.2
VDD + 0.2
V
+IN – (–IN)
–VREF
+VREF
V
Operating junction temperature, TJ
–40
+125
°C
At –40
°C to +85°C, V
REF = +2.5V, –IN = +2.5V, fSAMPLE = 250kHz, and fCLK = 24 × fSAMPLE, unless otherwise noted.
ADS8317I
ADS8317IB
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
ANALOG INPUT
Full-scale range
FSR +IN – (–IN)
–VREF
VREF
–VREF
VREF
V
Absolute input range
+IN
–0.1
VDD + 0.1
–0.1
VDD + 0.1
V
Hold
5
5
G
Ω
Input resistance
RON
Sampling
50
100
50
100
Ω
Input capacitance
During sampling
24
24
pF
Input leakage current
±50
±50
nA
Differential input capacitance
+IN to –IN, during sampling
20
20
pF
Full-power bandwidth
FSBW fS sinewave, SINAD = 60dB
500
500
kHz
DC ACCURACY
Resolution
16
16
Bits
No missing codes
NMC
16
16
16
16
Bits
Integral linearity error
INL
–2
±1.5
+2
–1.5
±0.8
+1.5
LSB
Differential linearity error
DNL
–1
±1
+2
–1
+0.7,–0.5
+1.25
LSB
Offset error
VOS
–2
±0.75
+2
–1
±0.5
+1
mV
Offset error drift
TCVOS
±3
±3
μV/
°C
Positive
–32
±16
+32
–32
±16
+32
LSB
Gain error
GERR
Negative
–32
±16
+32
–32
±16
+32
LSB
Gain error drift
TCGERR
±0.1
±0.1
ppm/
°C
Bipolar zero error
–2
±0.75
+2
–1
±0.5
+1
mV
Bipolar zero error drift
±3
±3
μV/
°C
Noise
50
50
μVRMS
Power-supply rejection
PSRR 4.75V
≤ VDD ≤ 5.25V
1
1
LSB
SAMPLING DYNAMICS
Conversion time
tCONV 24kHz ≤ fCLK ≤ 6.0MHz
2.667
666.7
2.667
666.7
μs
(16 DCLOCKs)
Acquisition time
tAQ fCLK = 6.0MHz
0.75
0.75
μs
(4.5 DCLOCKs)
Throughput rate
250
250
kSPS
(22 DCLOCKs)
Clock frequency
0.024
6.0
0.024
6.0
MHz
Copyright © 2007, Texas Instruments Incorporated
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