2
dc2518af
DEMO MANUAL DC2518A
PERFORMANCE SUMMARY
Specifications are at T
A
= 25°C
PARAMETER
CONDITIONS
VALUE
VPWR Supply Input Operating Range
9V to 15V
VDD33 Supply Input Operating Range
3.13V to 3.47V
ADC Total Unadjusted Error
V
IN
≥ 1V
±0.25%
ADC Voltage Sensing Input Range
–0.1V to 6V
ADC Current Sensing Input Range
Differential Current Sense Voltage
–170mV to 170mV
ADC Voltage Sensing Resolution
0V ≤ V
IN_ADC
≤ 6V
122µV/LSB
ADC Current Sense Resolution
0mV < |V
IN_ADC
| < 16mV
16mV < |V
IN_ADC
| < 32mV
32mV < |V
IN_ADC
| < 63.9mV
63.9mV < |V
IN_ADC
| < 127.9mV
127.9mV < |V
IN_ADC
|
15.6µV/LSB
31.25µV/LSB
62.5µV/LSB
125µV/LSB
250µV/LSB
DAC Resolution
10 Bits
DAC Full Scale Output Voltage
Buffer Gain Setting 0
Buffer Gain Setting 1
1.38V Typ.
2.65V Typ.
Temperature Sensor TUE
±1°C
Voltage Supervisor Input Voltage
Range (Programmable)
V
SENSEP[n]
0V to 6V (Low Resolution)
0V to 3.8V (High Resolution)
Voltage Supervisor Sensing Resolution
0V to 3.8V Range: 4.096/1024
0V to 6V Range: 8.192/1024
4mV/LSB
8mV/LSB
Voltage Supervisor
Total Unadjusted Error (TUE)
2V < V
IN_VS
< 6V, Low Resolution Mode
1.5V < V
IN_VS
< 3.8V, High Resolution Mode
0.8V < V
IN_VS
< 1.5V, High Resolution Mode
±1.25 %
±1.0 %
±1.5 %
I
2
C Serial Clock Frequency
10kHz to 400kHz
NOMINAL
UNTRIMMED V
OUT
REGULATOR
PART #
RESISTORS THAT SET
UNTRIMMED V
OUT
RDAC
MARGIN RANGE
CH0
+12V ±1%
LT3081
R3, R4
±10%
CH1
–12V ±1%
LT3090
R17, R18
R31, R32
±10%
CH2
+48V ±1%
LT8330
R34, R35
R40
±5%
CH3
–48V ±1%
LT8580
R52
R58, R59
±5%
Notes:
– Keep load currents < 100mA on ±48V channels and < 250mA on ±12V channels.
– Output voltages can be margined by ±10% from nominal with the default resistor values. These values can be eas-
ily changed. See section Changing Nominal Output Voltages. Use the LTC2975 Resistor Selection Tool which is
accessed from LTpowerPlay.
DEMO BOARD SYSTEM SPECIFICATIONS
