LTC4274
9
4274fe
For more information www.linear.com/LTC4274
TYPICAL PERFORMANCE CHARACTERISTICS
ADC Noise Histogram
Current Readback in Slow Mode
ADC Integral Nonlinearity
Current Readback in Slow Mode
ADC Noise Histogram Port
Voltage Readback in Fast Mode
ADC Integral Nonlinearity
Voltage Readback in Fast Mode
ADC Noise Histogram Port
Voltage Readback in Slow Mode
ADC Integral Nonlinearity
Voltage Readback in Slow Mode
INT and SDAOUT Pull-Down Voltage
vs Load Current
MOSFET Gate Drive With Fast
Pull-Down
ADC OUTPUT
0
B
IN
COUNT
300
250
200
150
100
50
6139
6141
4274 G17
6143 6145 6147
V
SENSE
– V
EE
= 110.4mV
CURRENT SENSE RESISTOR INPUT VOLTAGE (mV)
0
ADC INTEGRAL NONLINEARITY (LSBs)
0
0.5
400
–0.5
–1.0
100
200
250
500
1.0
300
50
150
450
350
ADC OUTPUT
260
0
B
IN
COUNT
600
500
400
300
200
100
262261
263
4274 G19
264 265
AGND – V
OUT
= 48.3V
PORT VOLTAGE (V)
0
ADC INTEGRAL NONLINEARITY (LSBs)
0
0.5
50
4274 G20
–0.5
–1.0
20
30
60
1.0
40
10
ADC OUTPUT
8532
0
B
IN
COUNT
600
500
400
300
200
100
85348533
8535
4274 G21
8536
AGND – V
OUT
= 48.3V
PORT VOLTAGE (V)
0
ADC INTEGRAL NONLINEARITY (LSBs)
0
0.5
50
4274 G22
–0.5
–1.0
20
30
60
1.0
40
10
LOAD CURRENT (mA)
0
0
PULL DOWN VOLTAGE (V)
3
2.5
2
1.5
1
0.5
105
15
20 25 30 35 40
100µs/DIV
GND
0mA
V
EE
V
EE
PORT
CURRENT
500mA/DIV
GATE
VOLTAGE
10V/DIV
PORT
VOLTAGE
20V/DIV
CURRENT LIMIT
50Ω FAULT REMOVED
50Ω
FAULT
APPLIED
V
DD
= 3.3V
V
EE
= –54V
FAST PULL DOWN