LT1259/LT1260
ELECTRICAL CHARACTERISTICS
The
q
denotes specifications which apply over the specified operating
temperature range.
Note 1:
A heat sink may be required depending on the power supply
voltage and how many amplifiers have their outputs short circuited.
Note 2:
Commercial grade parts are designed to operate over the
temperature range of – 40°C to 85°C but are neither tested nor guaranteed
beyond 0°C to 70°C. Industrial grade parts specified and tested over
– 40°C to 85°C are available on special request. Consult factory.
Note 3:
Ground pins are not internally connected. For best
performance, connect to ground.
Note 4:
T
J
is calculated from the ambient temperature T
A
and the
power dissipation P
D
according to the following formulas:
LT1259CN/LT1259IN: T
J
= T
A
+ (P
D
• 70°C/W)
LT1259CS/LT1259IS: T
J
= T
A
+ (P
D
• 110°C/W)
LT1260CNLT1260IN/: T
J
= T
A
+ (P
D
• 70°C/W)
LT1260CS/LT1260IS: T
J
= T
A
+ (P
D
• 100°C/W)
Note 5:
The supply current of the LT1259/LT1260 has a negative
temperature coefficient. See Typical Performance Characteristics.
Note 6:
Slew rate is measured at
±5V
on a
±10V
output signal while
operating on
±15V
supplies with R
F
= 1k, R
G
= 110Ω and R
L
= 1k.
Note 7:
Turn-on delay time is measured while operating on
±5V
supplies with R
F
= 1k, R
G
= 110Ω and R
L
= 150Ω. The t
ON
is measured
from control input to appearance of 0.5V at the output, for V
IN
= 0.1V.
Likewise, turn-off delay time is measured from control input to
appearance of 0.5V on the output for V
IN
= 0.1V.
Note 8:
Differential gain and phase are measured using a Tektronix
TSG120YC/NTSC signal generator and a Tektronix 1780R Video
Measurement Set. The resolution of this equipment is 0.1% and 0.1°.
Six identical amplifier stages were cascaded giving an effective
resolution of 0.016% and 0.016°.
TYPICAL AC PERFOR A CE
V
S
(V)
±12
±5
±12
±5
A
V
2
2
10
10
R
L
(Ω)
150
150
150
150
R
F
(Ω)
1.5k
1.1k
1.1k
825
R
G
(Ω)
1.5k
1.1k
121
90.9
SMALL SIGNAL
– 3dB BW (MHz)
130
93
69
61
SMALL SIGNAL
0.1dB BW (MHz)
53
40
20
16
SMALL SIGNAL
PEAKING (dB)
0.1
0
0.13
0
TYPICAL PERFOR A CE CHARACTERISTICS
±12V
Frequency Response, A
V
= 2
12
11
10
9
PHASE
0
–20
–40
–60
GAIN (dB)
GAIN (dB)
8
7
6
5
4
3
2
1
10
FREQUENCY (MHz)
100
LT1259/60 • TPC01
GAIN
V
S
= ±12V
R
L
= 150Ω
R
F
= R
G
= 1.5k
4
U W
U W
±12V
Frequency Response, A
V
= 10
26
25
24
23
PHASE (DEG)
0
V
S
= ±12V
R
L
= 150Ω
R
F
= 1.1k
R
G
= 121Ω
–20
–40
–60
PHASE (DEG)
–80
–100
GAIN
–120
–140
–160
–180
–200
1
10
FREQUENCY (MHz)
100
LT1259/60 • TPC01
PHASE
–80
–100
–120
–140
–160
–180
–200
22
21
20
19
18
17
16
LINER [ LINEAR TECHNOLOGY ]
