Datasheet

TSC2003
3
SBAS162G
www.ti.com
PARAMETER CONDITIONS MIN TYP MAX UNITS
ANALOG INPUT
Full-Scale Input Span 0V
REF
V
Absolute Input Range –0.2 +V
DD
+0.2 V
Capacitance 25 pF
Leakage Current 0.1 µA
SYSTEM PERFORMANCE
Resolution 12 Bits
No Missing Codes Standard and Fast Mode 11 Bits
High-Speed Mode 10 Bits
Integral Linearity Error Standard and Fast Mode ±2 LSB
(1)
High-Speed Mode ±4 LSB
Offset Error ±6 LSB
Gain Error ±4 LSB
Noise Including Internal V
REF
70 µVrms
Power-Supply Rejection Ratio 70 dB
SAMPLING DYNAMICS
Throughput Rate 50 ksps
Channel-to-Channel Isolation V
IN
= 2.5Vp-p at 50kHz 100 dB
SWITCH DRIVERS
On-Resistance
Y+, X+ 5.5 Ω
Y–, X– 7.3 Ω
Drive Current
(2)
Duration 100ms 50 mA
REFERENCE OUTPUT
Internal Reference Voltage 2.45 2.50 2.55 V
Internal Reference Drift 25 ppm/°C
Output Impedance Internal Reference ON 300 Ω
Internal Reference OFF 1 GΩ
Quiescent Current PD1 = 1, PD0 = 0, SDA, SCL High 750 µA
REFERENCE INPUT
Range 2.0 V
DD
V
Resistance PD1 = PD0 = 0 1 GΩ
BATTERY MONITOR
Input Voltage Range 0.5 6.0 V
Input Impedance Sampling Battery 10 kΩ
Battery Monitor OFF 1 GΩ
Accuracy External V
REF
= 2.5V –2+2%
Internal Reference –3+3%
TEMPERATURE MEASUREMENT
Temperature Range –40 +85 °C
Resolution Differential Method
(3)
1.6 °C
TEMP0
(4)
0.3 °C
Accuracy Differential Method
(3)
±2 °C
TEMP0
(4)
±3 °C
DIGITAL INPUT/OUTPUT
Logic Family CMOS
Logic Levels, Except PENIRQ
V
IH
| I
IH
| ≤ +5µA+V
DD
• 0.7 +V
DD
+ 0.3 V
V
IL
| I
IL
| ≤ +5µA –0.3 +V
DD
• 0.3 V
V
OH
I
OH
= –250µA+V
DD
• 0.8 V
V
OL
I
OL
= 250µA 0.4 V
PENIRQ V
OL
30kΩ Pull-Up 0.4 V
Data Format Straight
Binary
Input Capacitance SDA, SCL Lines 10 pF
ELECTRICAL CHARACTERISTICS
At T
A
= –40°C to +85°C, +V
DD
= +2.7V, V
REF
= 2.5V external voltage, I
2
C bus frequency = 3.4MHz, 12-bit mode and digital inputs = GND or +V
DD
, unless
otherwise noted.
TSC2003I