Datasheet

AFE0064
www.ti.com ........................................................................................................................................................................................ SLAS672 –SEPTEMBER 2009
ABSOLUTE MAXIMUM RATINGS
(1)
over operating free-air temperature range (unless otherwise noted)
VALUE / UNIT
IN <n> to VSS –0.3 V to +VDD + 0.3 V
VDD to AGND –0.3 V to 5 V
Digital input voltage to GND –0.3 V to (+VDD + 0.3 V)
Digital output to GND –0.3 V to (+VDD + 0.3 V)
Operating temperature range –40°C to 85°C
Storage temperature range –65°C to 150°C
Junction temperature (T
J
max) 150°C
Power dissipation (T
J
max – T
A
)/ θJA
TQFP package
(2)
θJA Thermal impedance 45°C/W
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) Device confirms to MSL level 3 at 260°C as per JEDEC -033.
SPECIFICATIONS
T
A
= 25 to 85°C, +VDD = 3.3 V, f
CLK
= 15 MHz for sequential mode and 3.75 MHz for simultaneous mode, scan time = 28.32
µs (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
ANALOG INPUT RANGE
Range 0 0.13 ρC
Range 1 0.25 ρC
Range 2 0.5 ρC
Range 3 1.2 ρC
Range 4 2.4 ρC
Range 5 4.8 ρC
Range 6 7.2 ρC
Range 7 9.6 ρC
Input current 30 µA
Integrator positive input voltage 1.66 1.68 1.70 V
ANALOG OUTPUT
Differential full scale analog output For all ranges –(REFP- ±1.4 (REFP- V
REFM) REFM)
Output common-mode voltage 1.55
(REFP+REFM)/2
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