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ADS1282SJDJ Datasheet(PDF) 7 Page - Texas Instruments

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Part # ADS1282SJDJ
Description  High-Temperature High-Resolution Delta Sigma ADC
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

ADS1282SJDJ Datasheet(HTML) 7 Page - Texas Instruments

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7
ADS1282-HT
www.ti.com
SBAS446H – DECEMBER 2009 – REVISED FEBRUARY 2016
Product Folder Links: ADS1282-HT
Submit Documentation Feedback
Copyright © 2009–2016, Texas Instruments Incorporated
Electrical Characteristics (continued)
Limit specifications at –55°C to 210°C. Typical specifications at 25°C, AVDD = 2.5 V, AVSS = –2.5 V, ƒCLK
(1) = 4.096 MHz,
VREFP = 2.5 V, VREFN = –2.5 V, DVDD = 3.3 V, CAPN – CAPP = 10 nF, PGA = 1, and ƒDATA = 1000 SPS, unless otherwise
noted.
PARAMETER
TEST
CONDITIONS
TA = –55°C to 125°C
TA = 210°C
(2)
UNIT
MIN
TYP
MAX
MIN
TYP
MAX
(12) Input frequencies in the range of NƒCLK / 512 ± ƒDATA / 2 (N = 1, 2, 3...) can mix with the modulator chopping clock. In these frequency
ranges intermodulation = 120 dB, typ.
(13) CLK input stopped.
Power-supply rejection
AVDD
,
AVSS
ƒPS = 60 Hz
(11)
80
90
83
dB
DVD
D
90
115
101
VOLTAGE REFERENCE INPUTS
Reference input voltage
(VREF = VREFP –
VREFN)
0.5
5
(AVDD –
AVSS) + 0.2
0.5
(AVDD –
AVSS) + 0.2
V
Negative reference input
VREF
N
AVSS – 0.1
VREFP –
0.5
AVSS – 0.1
VREFP –
0.5
V
Positive reference input
VREF
P
VREFN + 0.5
AVDD + 0.1
VREFN +
0.5
AVDD + 0.1
V
Reference input impedance
85
85
k
DIGITAL FILTER RESPONSE
Passband ripple
±0.003
dB
Passband (–0.01 dB)
0.375 × ƒDATA
Hz
Bandwidth (–3 dB)
0.413 × ƒDATA
Hz
High-pass filter corner
0.1
10
Hz
Stop band attenuation(12)
135
dB
Stop band
0.500 × ƒDATA
Hz
Group delay
Minimum phase
filter
5 / ƒDATA
s
Linear phase
filter
31 / ƒDATA
Settling time (latency)
Minimum phase
filter
62 / ƒDATA
s
Linear phase
filter
62 / ƒDATA
s
DIGITAL INPUT/OUTPUT
VIH
0.8 × DVDD
DVDD
0.8 × DVDD
DVDD
V
VIL
DGND
0.2 × DVDD
DGND
0.2 × DVDD
V
VOH
IOH = 1 mA
0.8 × DVDD
0.8 × DVDD
V
VOL
IOL = 1 mA
0.2 × DVDD
0.2 × DVDD
V
Input leakage
0 < VDIGITAL IN <
DVDD
±10
±10
μA
POWER SUPPLY
AVSS
–2.6
0
–2.6
0
V
AVDD
AVSS + 4.75
AVSS +
5.25
AVSS +
4.75
AVSS +
5.25
V
DVDD
1.75
3.6
1.75
3.6
V
AVDD, AVSS current
High-resolution
mode
4.5
7.2
5.2
10
|mA|
Standby mode
68
250
3000
3700
|
μA|
Power-down
mode
68
250
3000
3700
|
μA|
DVDD current
All modes
0.6
1.5
1.2
2
mA
Modulator mode
0.1
1.1
mA
Standby mode
73
175
576
950
μA
Power-down
mode(13)
32
120
186
240
μA


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