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ADS8694IDBTR Datenblatt(Datasheet) 9 Page - TI store

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Teile-Nr. ADS8694IDBTR
Beschreibung  4- and 8-Channel, Single-Supply, SAR ADCs
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Hersteller  TI1 [TI store]
Homepage  http://www.ti.com
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ADS8694, ADS8698
www.ti.com
SBAS686 – JULY 2015
Electrical Characteristics (continued)
Minimum and maximum specifications are at TA = –40°C to 125°C. Typical specifications are at TA = 25°C.
AVDD = 5 V, DVDD = 3 V, VREF = 4.096 V (internal), and fSAMPLE = 500 kSPS, unless otherwise noted.
TEST
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
LEVEL(1)
INTERNAL REFERENCE OUTPUT
Voltage on REFIO pin
V(REFIO_INT)
(10)
At TA = 25°C
4.095
4.096
4.097
V
A
(configured as output)
Internal reference temperature
6
10
ppm/°C
B
drift
C(OUT_REFIO)
Decoupling capacitor on REFIO
10
22
µF
B
Reference voltage to ADC
V(REFCAP)
At TA = 25°C
4.095
4.096
4.097
V
A
(on REFCAP pin)
Reference buffer output
0.5
1
Ω
B
impedance
Reference buffer temperature
0.6
1.5
ppm/°C
B
drift
Decoupling capacitor on
C(OUT_REFCAP)
10
22
μF
B
REFCAP
C(OUT_REFCAP) = 22 µF,
Turn-on time
15
ms
B
C(OUT_REFIO) = 22 µF
EXTERNAL REFERENCE INPUT
External reference voltage on
VREFIO_EXT
4.046
4.096
4.146
V
C
REFIO (configured as input)
POWER-SUPPLY REQUIREMENTS
AVDD
Analog power-supply voltage
Analog supply
4.75
5
5.25
V
B
Digital supply range
1.65
3.3
AVDD
B
DVDD
Digital power-supply voltage
V
Digital supply range for specified
2.7
3.3
5.25
B
performance
For the ADS8698; AVDD = 5 V, fS =
13
16
A
maximum and internal reference
Dynamic,
IAVDD_DYN
mA
AVDD
For the ADS8694; AVDD = 5 V, fS =
8.5
11.5
A
maximum and internal reference
For the ADS8698; AVDD = 5 V,
device not converting and internal
10
12
A
reference
IAVDD_STC
Analog supply current
Static
mA
For the ADS8694; AVDD = 5 V,
device not converting and internal
5.5
8.5
A
reference
At AVDD = 5 V, device in STDBY
ISTDBY
Standby
3
4.5
mA
A
mode and internal reference
Power-
IPWR_DN
At AVDD = 5 V, device in PWR_DN
3
20
μA
B
down
IDVDD_DYN
Digital supply current
At DVDD = 3.3 V, output = 0000h
0.5
mA
A
DIGITAL INPUTS (CMOS)
VIH
0.7 × DVDD
DVDD + 0.3
A
Digital input logic levels
V
DVDD > 2.1 V
VIL
–0.3
0.3 × DVDD
A
VIH
0.8 × DVDD
DVDD + 0.3
A
Digital input logic levels
V
DVDD
≤ 2.1 V
VIL
–0.3
0.2 × DVDD
A
Input leakage current
100
nA
A
Input pin capacitance
5
pF
C
DIGITAL OUTPUTS (CMOS)
VOH
IO = 500-μA source
0.8 × DVDD
DVDD
A
Digital output logic levels
V
VOL
IO = 500-μA sink
0
0.2 × DVDD
A
Floating state leakage current
Only for SDO
1
µA
A
Internal pin capacitance
5
pF
C
TEMPERATURE RANGE
TA
Operating free-air temperature
–40
125
°C
B
(10) Does not include the variation in voltage resulting from solder-shift and long-term effects.
Copyright © 2015, Texas Instruments Incorporated
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Product Folder Links: ADS8694 ADS8698




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