Datasheet

ADuC7124/ADuC7126 Data Sheet
Rev. C | Page 6 of 108
Parameter Min Typ Max Unit Test Conditions/Comments
ANALOG OUTPUTS
Output Voltage Range 0 0 to DAC
REF
V DAC
REF
range: DACGND to DACV
DD
Output Voltage Range 1 0 to 2.5 V
Output Voltage Range 2 0 to DACV
DD
V
Output Impedance 0.5 Ω
DAC IN OP AMP MODE
DAC Output Buffer in Op Amp Mode
Input Offset Voltage ±0.4 mV
Input Offset Voltage Drift 4 µV/°C
Input Offset Current 2 nA
Input Bias Current 2.5 nA
Gain 70 dB 5 kΩ load
Unity Gain Frequency 4.5 MHz R
L
= 5 kΩ, C
L
= 100 pF
CMRR 78 dB
Settling Time 12 µs R
L
= 5 kΩ, C
L
= 100 pF
Output Slew Rate 3.2 V/µs R
L
= 5 kΩ, C
L
= 100 pF
PSRR 75 dB
DAC AC CHARACTERISTICS
Voltage Output Settling Time 10 µs
Digital-to-Analog Glitch Energy ±10 nV-sec
1 LSB change at major carry (where maximum
number of bits simultaneously change in the
DACxDAT register)
COMPARATOR
Input Offset Voltage ±15 mV
Input Bias Current 1 µA
Input Voltage Range AGND AV
DD
– 1.2 V
Input Capacitance 8.5 pF
Hysteresis
4, 6
2 15 mV
Hysteresis can be turned on or off via the
CMPHYST bit in the CMPCON register
Response Time 4 µs
100 mV overdrive and configured with
CMPRES = 11
TEMPERATURE SENSOR
Voltage Output at 25°C 1.415 V ADuC7124
1.392 V ADuC7126
Voltage Temperature Coefficient 3.914 mV/°C ADuC7124
4.52 mV/°C ADuC7126
Accuracy ±3 °C A single point calibration is required
θ
JA
Thermal Impedance
64-Lead LFCSP
24
°C/W
POWER SUPPLY MONITOR (PSM)
IOV
DD
Trip Point Selection 2.79 V Two selectable trip points
3.07 V
Power Supply Trip Point Accuracy ±2.5 % Of the selected nominal trip point voltage
POWER-ON RESET 2.41 V
WATCHDOG TIMER ( WDT )
Timeout Period 0 512 sec
FLASH/EE MEMORY
Endurance
9
10,000 Cycles
Data Retention
10
20 Years T
J
= 85°C
DIGITAL INPUTS All digital inputs excluding XCLKI and XCLKO
Logic 1 Input Current ±0.2 ±1 µA V
IH
= V
DD
or V
IH
= 5 V
Logic 0 Input Current −40 −60 µA V
IL
= 0 V; except TDI, TDO, and RTCK
−80 −120 µA V
IL
= 0 V; TDI, TDO, and RTCK
Input Capacitance 5 pF