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7 Specifications
7.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)
(2)
AIN_nP, AIN_nGND to GND
(3)
AIN_nP, AIN_nGND to GND
AUX_GND to GND
AUX_IN to GND
AVDD to GND or DVDD to GND
REFCAP to REFGND or REFIO to REFGND
GND to REFGND
Digital input pins to GND
Digital output pins to GND
Operating temperature, T
A
Storage temperature, T
stg
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, and do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended
Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) AVDD = 5 V or offers a low impedance of < 30 kΩ.
(3) AVDD = floating with an impedance > 30 kΩ.
7.2 ESD Ratings
Human body model (HBM), per ANSI/ESDA/JEDEC JS-001
Electrostatic
V
(ESD)
discharge
Charged device model (CDM), per JEDEC specification JESD22-C101
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.
7.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
AVDD
Analog supply voltage
DVDD
Digital supply voltage
7.4 Thermal Information
R
Junction-to-ambient thermal resistance
θJA
R
Junction-to-case (top) thermal resistance
θJC(top)
R
Junction-to-board thermal resistance
θJB
ψ
Junction-to-top characterization parameter
JT
ψ
Junction-to-board characterization parameter
JB
R
Junction-to-case (bottom) thermal resistance
θJC(bot)
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
Copyright © 2015, Texas Instruments Incorporated
(1)
THERMAL METRIC
Product Folder Links:
ADS8664 ADS8668
(1)
MIN
–20
–11
–0.3
–0.3
AVDD + 0.3
–0.3
–0.3
–0.3
–0.3
DVDD + 0.3
–0.3
DVDD + 0.3
–40
–65
Analog input pins
(AIN_nP; AIN_nGND)
(1)
All other pins
(2)
MIN
NOM
4.75
5
1.65
3.3
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ADS8664, ADS8668
SBAS492 – JULY 2015
MAX
UNIT
20
V
11
V
0.3
V
V
7
V
5.7
V
0.3
V
V
V
125
°C
150
°C
VALUE
UNIT
±4000
V
±2000
±500
MAX
UNIT
5.25
V
AVDD
V
ADS8664,
ADS8668
UNIT
DBT (TSSOP)
38 PINS
68.8
°C/W
19.9
°C/W
30.4
°C/W
1.3
°C/W
29.8
°C/W
NA
°C/W
5
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