Datasheet

3
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TSC2000
SBAS257
PARAMETER CONDITIONS MIN TYP MAX UNITS
AUXILIARY ANALOG INPUT
Input Voltage Range 0+V
REF
V
Input Capacitance 25 pF
Input Leakage Current ±1 µA
BATTERY MONITOR INPUT
Input Voltage Range VBAT1 0.5 6.0 V
Input Voltage Range VBAT2 0.5 3.0 V
Input Capacitance 25 pF
Input Leakage Current ±1 µA
Accuracy –3+3%
TEMPERATURE MEASUREMENT
Temperature Range –40 +85 °C
Temperature Resolution 0.3 °C
Accuracy ±2 °C
A/D CONVERTER
Resolution Programmable: 8-, 10-, or 12-Bits 12 Bits
No Missing Codes 12-Bit Resolution 11 Bits
Integral Linearity ±2LSB
Offset Error ±6LSB
Gain Error Excluding Reference Error ±6LSB
Noise 30 µVrms
Power-Supply Rejection 80 dB
D/A CONVERTER
Output Current Range Set by Resistor from ARNG to GND 650 µA
Resolution 8 Bits
Integral Linearity ±2LSB
VOLTAGE REFERENCE
Voltage Range Internal 2.5V 2.45 2.5 2.55 V
Internal 1.25V 1.225 1.25 1.275 V
Reference Drift 20 ppm/°C
External Reference Input Range 1.0 V
DD
V
Current Drain External Reference 20 µA
DIGITAL INPUT/OUTPUT
Internal Clock Frequency 8MHz
Logic Family CMOS
Logic Levels: V
IH
I
IH
= +5µA0.7V
DD
V
V
IL
I
IL
= +5µA –0.3 0.3V
DD
V
V
OH
I
OH
= 2 TTL Loads 0.8V
DD
V
V
OL
I
OL
= 2 TTL Loads 0.4 V
POWER-SUPPLY REQUIREMENTS
Power-Supply Voltage, +V
DD
Specified Performance 2.7 3.6 V
Quiescent Current
See Note (1) 1.25 2.3 mA
See Note (2) 500 µA
Power Down 3 µA
TEMPERATURE RANGE
Specified Performance –40 +85 °C
NOTES: (1) AUX1 conversion, no averaging, no REF power down, 50µs conversion. (2) AUX1 conversion, no averaging, external reference , 50µs conversion.
ELECTRICAL CHARACTERISTICS
At –40°C to +85°C, +V
DD
= +2.7V, internal V
REF
= +2.5V, conversion clock = 2MHz, 12-bit mode, unless otherwise noted.
TSC2000IPW