LT1256CN Linear Technology, LT1256CN Datasheet - Page 6

• Manufacturer Part Number: LT1256CN
• Description: IC AMP VIDEO FADE CONTRLD 14-DIP
• Manufacturer: Linear Technology

Specifications of LT1256CN

• Applications: Current Feedback
• Number Of Circuits: 1
• -3db Bandwidth: 40MHz
• Slew Rate: 300 V/µs
• Current - Supply: 14.5mA
• Current - Output / Channel: 40mA
• Voltage - Supply, Single/dual (±): 5 V ~ 30 V, ±2.5 V ~ 15 V
• Mounting Type: Through Hole
• Package / Case: 14-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

TYPICAL PERFORMANCE CHARACTERISTICS
LT1251/LT1256
6
60
50
40
30
20
10
70
60
50
40
30
20
10
10
9
8
7
6
5
4
3
2
0.4
0.6
0.2 0.4
Bandwidth vs Feedback
Resistance, A
Bandwidth vs Feedback
Resistance, A
Bandwidth vs Feedback
Resistance, A
V
V
0.6
0.8
S
S
V
V
= 5V
FEEDBACK RESISTANCE (k )
S
FEEDBACK RESISTANCE (k )
V
= 5V
S
FEEDBACK RESISTANCE (k )
0.6 0.8 1.0
S
= ±15V
= ±5V
= 5V
V
1.0
0.8
V
S
S
= ±5V
= ±5V
V
V
V
= 1, R
= 10, R
= 100, R
1.0
1.2
1.2
V
V
PEAKING
PEAKING
PEAKING 0.5dB
PEAKING 5.0dB
S
S
L
1.4
1.2
= ±15V
1.4
= ±15V
L
= 100
NO PEAKING
L
= 100
= 100
1.6 1.8
W
1.4
1.6
0.5dB
5.0dB
1251/56 G14
1251/56 G11
1251/56 G17
U
1.6
1.8
2.0
70
60
50
40
30
20
10
60
50
40
30
20
10
10
9
8
7
6
5
4
3
2
0.6
0.4
0.2 0.4
Bandwidth vs Feedback
Resistance, A
Bandwidth vs Feedback
Resistance, A
Bandwidth vs Feedback
Resistance, A
0.8
0.6
V
V
V
S
FEEDBACK RESISTANCE (k )
S
V
V
FEEDBACK RESISTANCE (k )
S
0.6 0.8 1.0
FEEDBACK RESISTANCE (k )
= 5V
S
S
= ±15V
= ±5V
= 5V
= 5V
V
1.0
0.8
S
V
= ±5V
S
V
= ±5V
V
V
= 1, R
= 10, R
= 100, R
V
1.2
1.0
S
= ±15V
1.2
PEAKING 0.5dB
PEAKING 5.0dB
PEAKING 0.5dB
PEAKING 5.0dB
L
V
1.4
1.2
1.4
S
L
= 1k
= ±15V
L
NO PEAKING
= 1k
= 1k
1.6 1.8
1.6
1.4
1251/56 G12
1251/56 G15
1251/56 G18
1.8
1.6
2.0
–100
–10
–20
–30
–40
–50
–60
–70
–80
–90
–1
–2
–3
–4
–5
40
35
30
25
20
15
10
5
4
3
2
1
0
100k
0
10k
Voltage Gain and Phase
vs Frequency
Off-Channel Isolation
vs Frequency
0
–3dB Bandwidth vs
Control Voltage
V
V
V
R
R
V
R
R
V
R
V
R
GAIN
PHASE
S
S
FS
C
L
F
S
FS
F
L
L
F
= 1.5k
= ±5V
= 1.3k
= 100
= ±5V
= 0V
= 100
= ±5V
= 100
= 1.3k
= 2.5V
= 2.5V
0.5
100k
CONTROL VOLTAGE (V)
1M
FREQUENCY (Hz)
FREQUENCY (Hz)
1.0
A
V
= 10
1M
A
1.5
V
10M
= 1
10M
2.0
1251/56 G13
1251/56 G19
1251/56 G16
100M
100M
2.5
45
0
–45
–90
–135
–180
–225
–270