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PDF LT1223MJ8 Data sheet ( Hoja de datos )
| Número de pieza | LT1223MJ8 | |
| Descripción | 100MHz Current Feedback Amplifier | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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FEATURES
s 100MHz Bandwidth at AV = 1
s 1000V/µs Slew Rate
s Wide Supply Range: ±5V to ±15V
s 1mV Input Offset Voltage
s 1µA Input Bias Current
s 5MΩ Input Resistance
s 75ns Settling Time to 0.1%
s 50mA Output Current
s 6mA Quiescent Current
APPLICATI S
s Video Amplifiers
s Buffers
s IF and RF Amplification
s Cable Drivers
s 8-, 10-, 12-Bit Data Acquisition Systems
TYPICAL APPLICATI
Video Cable Driver
VIN +
LT1223
–
RF
1k
RG
1k
75Ω
75Ω
CABLE
VOUT
75Ω
A
V
=
1
+
RF
RG
AT AMPLIFIER OUTPUT.
6dB LESS AT VOUT.
LT1223 • TA02
LT1223
100MHz Current
Feedback Amplifier
DESCRIPTIO
The LT1223 is a 100MHz current feedback amplifier with
very good DC characteristics. The LT1223’s high slew
rate, 1000V/µs, wide supply range, ±15V, and large output
drive, ±50mA, make it ideal for driving analog signals over
double- terminated cables. The current feedback amplifier
has high gain bandwidth at high gains, unlike conventional
op amps.
The LT1223 comes in the industry standard pinout and
can upgrade the performance of many older products.
The LT1223 is manufactured on Linear Technology’s
proprietary complementary bipolar process.
Voltage Gain vs Frequency
60
100MHz GAIN
50 BANDWIDTH
RG = 10
40
RG = 33
30
RG = 110
20
RG = 470
10
RG = ∞
0
+
–
1k
RG
–10
–20
100k
1M
10M 100M
1G
FREQUENCY (Hz)
LT1223 • TPC01
1
1 page  
LT1223
TYPICAL PERFOR A CE CHARACTERISTICS
–3dB Bandwidth vs
Feedback Resistor
100
90
AV = 2; RF = RG
RL = 100Ω ; VS = ±15V
80 NO CAPACITIVE LOAD
70
60
50
40
30
20
10
0
0 123
FEEDBACK RESISTOR (kΩ)
LT1223 • TPC11
Maximum Capacitive Load vs
Feedback Resistor
10k
AV = 2; RF = RG
RL = 100; VS = ±15V
PEAKING < 5dB
1k
100
10
0
1 23
FEEDBACK RESISTOR (kΩ)
LT1223 • TPC14
Spot Noise Voltage and Current vs
Frequency
1000
100 –in
10
1
10
en
+in
100 1k 10k
FREQUENCY (Hz)
LT1223 • TPC17
–3dB Bandwidth vs
Supply Voltage
100
90
RF = RG
AV = 2
80
RL = 100Ω
TA = 25°C
70
RF = 750
60
RF = 1k
50
40
30
20
10
0
0
RF = 1.5k
RF = 2k
5 10 15
SUPPLY VOLTAGE (±V)
LT1223 • TPC12
Open-Loop Voltage Gain vs
Load Resistor
100
25°C
90
–55°C
80
70 125°C
60
50
40
100
VS = ±15V
VO= ± 10V
1000
10000
LOAD RESISTOR (Ω)
LT1223 • TPC15
Power Supply Rejection vs
Frequency
80
VS = ±15V
RF = 1k
POSITIVE
60
Minimum Feedback Resistor vs
Voltage Gain
1000
900
800
VS = ±15V
RL = 100
700
600 0dB PEAKING
500 2dB PEAKING
400
300
200
100
0
10 20 30 40 50 60
VOLTAGE GAIN (V/V)
LT1223 • TPC13
Transimpedance vs Load Resistor
10
9 VS = ±15V
VO = ±10V
8
7
25°C
6
5 125°C
4 –55°C
3
2
1
0
100
1000 10000
LOAD RESISTOR (Ω)
LT1223 • TPC16
Output Impedance vs Frequency
100
VS = ±15V
10
40
NEGATIVE
20
1
RF = RG = 3k
0.1
RF = RG = 1k
0
10k
100k 1M
10M 100M
FREQUENCY (Hz)
LT1223 • TPC18
0.01
10k
100k 1M 10M 100M
FREQUENCY (Hz)
LT1223 • TPC19
5
5 Page 
TYPICAL APPLICATI
V+
VIN +
LT1223
–
V–
2k
150mA Output Current Video Amp
V+ 75Ω
20Ω
BIAS
IN
LT1010
OUT
75Ω
V–
2k
75Ω
75Ω
Rf = 2k TO STABILIZE CIRCUIT
DIFFERENTIAL GAIN = 1%
DIFFERENTIAL PHASE = 1°
75Ω
SI PLIFIED SCHE ATIC
15k
10k
8
3
5
BIAS
2
1
LT1223
75Ω
75Ω
75Ω
75Ω
75Ω
LT1223 • TA10
7
6
BIAS
4
LT1223 • TA01
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet LT1223MJ8.PDF ] | |
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