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PDF LT1222CS8 Data sheet ( Hoja de datos )
| Número de pieza | LT1222CS8 | |
| Descripción | 500MHz Operational Amplifier | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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FEATURES
s Gain-Bandwidth: 500MHz
s Gain of 10 Stable Uncompensated
s Slew Rate: 200V/µs
s Input Noise Voltage: 3nV/√Hz
s C-LoadTM Op Amp Drives Capacitive Loads
s External Compensation Pin
s Maximum Input Offset Voltage: 300µV
s Maximum Input Bias Current: 300nA
s Maximum Input Offset Current: 300nA
s Minimum Output Swing Into 500Ω: ±12V
s Minimum DC Gain: 100V/mV, RL = 500Ω
s Settling Time to 0.1%: 75ns, 10V Step
s Settling Time to 0.01%: 120ns, 10V Step
s Differential Gain: 0.4%, AV = 2, RL = 150Ω
s Differential Phase: 0.1°, AV = 2, 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
AV = 10 with Output Clamping
15V
3k
1N5711
VIN 3 +
5
LT1222
2–
6
909Ω
100Ω
1N5711 1N4148
0.1µF
VOUT ≤ 0.5V
LT1222 • TA01
LT1222
500MHz, 3nV/√Hz, AV ≥ 10
Operational Amplifier
DESCRIPTIO
The LT1222 is a low noise, very high speed operational
amplifier with superior DC performance. The LT1222 is
stable in a noise gain of 10 or greater without compensa-
tion, or the part can be externally compensated for lower
closed-loop gain at the expense of lower bandwidth and
slew rate. It features reduced input offset voltage, lower
input bias currents, lower noise 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 compen-
sation node can also be used to clamp the output swing.
The LT1222 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 4 or greater the LT1221 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.
AV = – 1, CC = 30pF Pulse Response
RF = RG = 1k
VS = ±15V
VIN = 100mV
f = 5MHz
LT1222 • TA02
1
1 page  
TYPICAL PERFORMANCE CHARACTERISTICS
LT1222
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)
LT1222 • TPC10
Voltage Gain and Phase
vs Frequency
120 100
VS = ±15V
100 VS = ±15V
80
80 VS = ±5V
VS = ±5V
60
60 40
40 20
20 0
TA = 25°C
0
100 1k 10k 100k 1M
FREQUENCY (Hz)
– 20
10M 100M
LT1222 • TPC13
Gain-Bandwidth vs Temperature
550
VS = ±15V
525
500
475
450
425
400
– 50 – 25
0 25 50 75 100 125
TEMPERATURE (°C)
LT1222 • 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
1mV
–6
–8
–10
0
25 50 75 100
SETTLING TIME (ns)
125
LT1222 • 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
–6
1mV
–8
–10
0
25 50 75 100
SETTLING TIME (ns)
125
LT1222 • TPC12
Frequency Response
vs Capacitive Load
30
28
VS = ±15V
TA = 25°C
26 AV = –10
24
C = 100pF
C = 50pF
22
20
C=0
18
16 C = 500pF
14
C = 1000pF
12
10
1
10
FREQUENCY (MHz)
100
LT1222 • TPC14
Closed-Loop Output Impedance
vs Frequency
10
VS = ±15V
TA = 25°C
AV = 10
1
0.1
0.01
0.001
10k
100k
1M
10M
FREQUENCY (Hz)
100M
LT1222 • TPC15
Slew Rate vs Temperature
275
VS = ±15V
250
AV = –10
CC
=
0
(SR
+)
+
(SR–)
225 SR =
2
Total Harmonic Distortion
vs Frequency
0.01
VS = ±15V
VO = 3VRMS
RL = 500Ω
200 0.001
AV = ±10
175
150
125
– 50 – 25
0 25 50 75 100 125
TEMPERATURE (°C)
LT1222 • TPC17
0.0001
10
100 1k 10k
FREQUENCY (Hz)
100k
LT1222 • TPC18
5
5 Page 
PACKAGE DESCRIPTION Dimensions in inches (millimeters) unless otherwise noted.
S8 Package
8-Lead Plastic SOIC
0.189 – 0.197*
(4.801 – 5.004)
8 765
LT1222
0.228 – 0.244
(5.791 – 6.197)
0.150 – 0.157*
(3.810 – 3.988)
0.010
(0.254
–
–
0.020
0.508)
×
45°
0.008 – 0.010
(0.203 – 0.254)
0°– 8° TYP
12
0.053 – 0.069
(1.346 – 1.752)
0.016 – 0.050
0.406 – 1.270
0.014 – 0.019
(0.355 – 0.483)
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006 INCH (0.15mm).
34
0.004 – 0.010
(0.101 – 0.254)
0.050
(1.270)
BSC
SO8 0294
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 LT1222CS8.PDF ] | |
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