Datasheet

LM96000
www.ti.com SNAS234C –APRIL 2004–REVISED MARCH 2013
DC Electrical Characteristics
The following specifications apply for V+ = 3.0V to 3.6V, and all analog input source impedance R
S
= 50Ω unless otherwise
specified in conditions. Boldface limits apply for T
A
= T
J
over T
MIN
=0°C to T
MAX
=85°C; all other limits T
A
=T
J
= 25°C. T
A
is
the ambient temperature of the LM96000; T
J
is the junction temperature of the LM96000; T
D
is the thermal diode junction
temperature.
Typical Limits Units
Parameter Test Conditions
(1) (2)
(Limits)
POWER SUPPLY CHARACTERISTICS
Supply Current
(3)
Converting, Interface and 1.8 3.5 mA (max)
Fans Inactive, Peak Current
Converting, Interface and 0.53 mA
Fans Inactive, Average
Current
Power-On Reset Threshold Voltage 1.6 V (min)
2.8 V (max)
TEMPERATURE TO DIGITAL CONVERTER CHARACTERISTICS
Resolution 1 °C
8 Bits
Temperature Accuracy (See
(4)
for Thermal Diode T
D
=25°C ±2.5 °C (max)
Processor Type)
T
D
=0°C to 100°C ±1 ±3 °C (max)
T
D
=100°C to 125°C ±4 °C (max)
Temperature Accuracy using Internal Diode.
(5)
See
(6)
±1 ±3 °C (max)
for the thermal resistance to be used in the self-
heating calculation.
I
DS
External Diode Current Source High Level 188 280 µA (max)
Low Level 11.75 µA
External Diode Current Ratio 16
ANALOG TO DIGITAL CONVERTER CHARACTERISTICS
TUE Total Unadjusted Error
(7)
±2 %FS
(max)
DNL Differential Non-linearity 1 LSB
Power Supply Sensitivity ±1 %/V
Total Monitoring Cycle Time
(8)
All Voltage and Temperature 182 200 ms (max)
readings
Input Resistance, all analog inputs 210 140 kΩ (min)
400 kΩ (max)
DIGITAL OUTPUT: PWM1, PWM2, PWM3, XTESTOUT
I
OL
Logic Low Sink Current V
OL
=0.4V 8 mA (min)
V
OL
Logic Low Level I
OUT
= +8 mA 0.4 V (max)
(1) Typicals are at T
A
= 25°C and represent most likely parametric norm.
(2) Limits are specified to TI's AOQL (Average Outgoing Quality Level).
(3) The average current can be calculated from the peak current using the following equation:Quiescent current will not increase
substantially with an SMBus transaction.
(4) The accuracy of the LM96000CIMT is ensured when using the thermal diode of Intel Pentium 4 90nm processors or any thermal diode
with a non-ideality of 1.011 and series resistance of 3.33Ω. When using a 2N3904 type transistor as a thermal diode the error band will
be typically shifted by -?°C.
(5) Local temperature accuracy does not include the effects of self-heating. The rise in temperature due to self-heating is the product of the
internal power dissipation of the LM96000 and the thermal resistance.
(6) Thermal resistance junction-to-ambient when attached to a double-sided printed circuit board with 1 oz. foil is 113 °C/W.
(7) TUE , total unadjusted error, includes ADC gain, offset, linearity and reference errors. TUE is defined as the "actual Vin" to achieve a
given code transition minus the "theoretical Vin" for the same code. Therefore, a positive error indicates that the input voltage is greater
than the theoretical input voltage for a given code. If the theoretical input voltage was applied to an LM96000 that has positive error, the
LM96000's reading would be less than the theoretical.
(8) This specification is provided only to indicate how often temperature and voltage data is updated. The LM96000 can be read at any time
without regard to conversion state (and will yield last conversion result).
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