ltc2978 Linear Technology Corporation, ltc2978 Datasheet - Page 9

• Manufacturer Part Number: ltc2978
• Description: Octal Pmbus Power Supply Monitor And Controller With Eeprom
• Manufacturer: Linear Technology Corporation

Typical perForMance characTerisTics
–100
–120
–100
–120
–20
–40
–60
–80
–20
–40
–60
–80
9
8
7
6
5
4
2
3
1
0
0
0
0
0
0
ADC Rejection vs Frequency
at V
Input Sampling Current
vs Differential Input Voltage
ADC Rejection
vs Frequency at V
IN
12500
1
(Current Sense Mode, Zoom)
3125
INPUT VOLTAGE (V)
FREQUENCY (Hz)
FREQUENCY (Hz)
2
25000
6250
3
IN
37500
4
9375
50000
5
2978 G13
2978 G10
2978 G07
12500
62500
6
–100
–120
1200
1000
–20
–40
–60
–80
800
600
400
200
90
80
70
60
50
40
30
20
10
0
0
0
–20
0
0
ADC High Resolution Mode
Differential Input Current
ADC Noise Histogram
ADC Rejection
vs Frequency at V
V
HIGH RESOLUTION MODE
IN
20
DIFFERENTIAL INPUT VOLTAGE (mV)
= 0V
40
3125
–10
60
FREQUENCY (Hz)
READ_V
80
6250
0
OUT
100
IN
(Zoom)
(µV)
120 140 160
9375
10
2978 G14
2978 G08
2978 G11
12500
180
20
–0.05
–0.10
–0.15
–0.20
–0.25
–0.30
–0.35
–0.40
2.698
2.696
2.694
2.692
2.690
2.688
2.686
2.684
2.682
2.680
2.678
–100
–120
–20
–40
–60
–80
0
0
–50
–50
0
ADC Rejection vs Frequency
at V
Voltage Supervisor Total
Unadjusted Error vs Temperature
Voltage Buffered IDAC Full-Scale
Output Voltage vs Temperature
V
HIGH RESOLUTION MODE
IN
–35
–35
= 0.8V
IN
12500
–20
–20
(Current Sense Mode)
–5
–5
TEMPERATURE (°C)
TEMPERATURE (°C)
FREQUENCY (Hz)
25000
10
10
LTC2978
25
25
37500
40
40 55
55
50000
70
70
85
85
2978 G09
2978 G12
2978 G15
2978fa

62500
100
100