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PDF LT1221MJ8 Data sheet ( Hoja de datos )
| Número de pieza | LT1221MJ8 | |
| Descripción | 150MHz Operational Amplifier | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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FEATURES
s Gain-Bandwidth: 150MHz
s Gain of 4 Stable
s Slew Rate: 250V/µs
s Input Noise Voltage: 6nV/√Hz
s C-LoadTM Op Amp Drives Capacitive Loads
s Maximum Input Offset Voltage: 600µV
s Maximum Input Bias Current: 300nA
s Maximum Input Offset Current: 300nA
s Minimum Output Swing Into 500Ω: ±12V
s Minimum DC Gain: 50V/mV, RL = 500Ω
s Settling Time to 0.1%: 65ns, 10V Step
s Settling Time to 0.01%: 85ns, 10V Step
s Differential Gain: 0.08%, AV = 4, RL = 150Ω
s Differential Phase: 0.2°, AV = 4, RL = 150Ω
APPLICATI S
s Wideband Amplifiers
s Buffers
s Active Filters
s Video and RF Amplification
s Cable Drivers
s 8-, 10-, 12-Bit Data Acquisition Systems
TYPICAL APPLICATION
Summing Amplifier
1k
VA
1k
VB
1k
VC
1k
–
LT1221
+
VOUT
LT1221 • TA01
LT1221
150MHz, 250V/µs, AV ≥ 4
Operational Amplifier
DESCRIPTIO
The LT1221 is a very high speed operational amplifier with
superior DC performance. The LT1221 is stable in a noise
gain of 4 or greater. It features reduced input offset
voltage, lower input bias currents and higher DC gain than
devices with comparable bandwidth and slew rate. The
circuit is a single gain stage that includes proprietary DC
gain enhancement circuitry to obtain precision with high
speed. The high gain and fast settling time make the circuit
an ideal choice for data acquisition systems. The circuit is
also capable of driving capacitive loads which makes it
useful in buffer or cable driver applications.
The LT1221 is a member of a family of fast, high perfor-
mance amplifiers that employ Linear Technology
Corporation’s advanced complementary bipolar process-
ing. For unity-gain stable applications the LT1220 can be
used, and for gains of 10 or greater the LT1222 can be used.
and LTC are registered trademarks and LT is a trademark of Linear Technology Corporation.
C-Load is a trademark of Linear Technology Cortporation.
Summing Amplifier Large-Signal Response
VS = ±15V f = 2MHz
VIN = 10VP-P
LT1221 • TA02
1
1 page  
TYPICAL PERFORMANCE CHARACTERISTICS
LT1221
Common-Mode Rejection Ratio
vs Frequency
120
VS = ±15V
100 TA = 25°C
80
60
40
20
0
1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
LT1221 • TPC10
Voltage Gain and Phase
vs Frequency
100 100
VS = ±15V
80 80
60 VS = ±5V
VS = ±15V
40 VS = ±5V
60
40
20 20
0
TA = 25°C
–20
100 1k 10k 100k 1M
FREQUENCY (Hz)
0
–20
10M 100M
LT1221 • TPC13
Gain-Bandwidth vs Temperature
180
VS = ±15V
170
160
150
140
130
120
– 50 – 25
0 25 50 75 100 125
TEMPERATURE (°C)
LT1221 • TPC16
Output Swing and Error
vs Settling Time (Noninverting)
10
8
VS = ±15V
TA = 25°C
6
10mV
4
1mV
2
0
–2
–4
10mV
–6
1mV
–8
–10
0
25 50 75 100
SETTLING TIME (ns)
125
LT1220 • TPC11
Output Swing and Error
vs Settling Time (Inverting)
10
8
VS = ±15V
TA = 25°C
6
10mV
4
1mV
2
0
–2
–4
10mV
1mV
–6
–8
–10
0
25 50 75 100
SETTLING TIME (ns)
125
LT1221 • TPC12
Frequency Response
vs Capacitive Load
24
22
VS = ±15V
TA = 25°C
20 AV = – 5
18
C = 100pF
16 C = 50pF
14
12
10
8 C = 500pF
C=0
6 C = 1000pF
4
1 10
FREQUENCY (MHz)
100
LT1221 • TPC14
Closed-Loop Output Impedance
vs Frequency
10
VS = ±15V
TA = 25°C
AV = 4
1
0.1
0.01
0.001
10k
100k
1M
10M
FREQUENCY (Hz)
100M
LT1221 • TPC15
Slew Rate vs Temperature
325
VS = ±15V
300
AV
=
–5
(SR+)
+
(SR–)
SR =
2
275
Total Harmonic Distortion
vs Frequency
0.01
VS = ±15V
VO = 3VRMS
RL = 500Ω
AV = 4
AV = –4
250 0.001
225
200
175
– 50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
LT1221 • TPC19
0.0001
10
100 1k 10k
FREQUENCY (Hz)
100k
LT1220 • TPC18
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet LT1221MJ8.PDF ] | |
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