Linear Technology LT1220CS8 Linear IC SO8 Very High Speed Op Amp LT1220CS8 Data Sheet
Product codes
LT1220CS8
1
LT1220
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
45MHz, 250V/
µ
s
Operational Amplifier
■
Gain-Bandwidth: 45MHz
■
Unity-Gain Stable
■
Slew Rate: 250V/
µ
s
■
C-Load
TM
Op Amp Drives Capacitive Loads
■
Maximum Input Offset Voltage: 1mV
■
Maximum Input Bias Current: 300nA
■
Maximum Input Offset Current: 300nA
■
Minimum Output Swing Into 500
Ω
:
±
12V
■
Minimum DC Gain: 20V/mV, R
L
= 500
Ω
■
Settling Time to 0.1%: 75ns, 10V Step
■
Settling Time to 0.01%: 95ns, 10V Step
■
Differential Gain: 0.1%, A
V
= 2, R
L
= 150
Ω
■
Differential Phase: 0.2
°
, A
V
= 2, R
L
= 150
Ω
The LT
®
1220 is a high speed operational amplifier with
superior DC performance. The LT1220 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 pre-
cision 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 large
capacitive loads which makes it useful in buffer or cable
driver applications.
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 pre-
cision 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 large
capacitive loads which makes it useful in buffer or cable
driver applications.
The LT1220 is a member of a family of fast, high perfor-
mance amplifiers that employ Linear Technology
Corporation’s advanced complementary bipolar process-
ing. For applications with gains of 4 or greater the LT1221
can be used, and for gains of 10 or greater the LT1222 can
be used for increased bandwidth.
mance amplifiers that employ Linear Technology
Corporation’s advanced complementary bipolar process-
ing. For applications with gains of 4 or greater the LT1221
can be used, and for gains of 10 or greater the LT1222 can
be used for increased bandwidth.
■
Wideband Amplifiers
■
Buffers
■
Active Filters
■
Video and RF Amplification
■
Cable Drivers
■
8-, 10-, 12-Bit Data Acquisition Systems
Two Op Amp Instrumentation Amplifier
Inverter Pulse Response
LT1220 • TA02
R
F
= R
G
= 1k
V
S
=
±
15V
V
IN
= 20V
f = 2MHz
+
–
–
+
LT1220
GAIN = [R4/R3][1 + (1/2)(R2/R1 + R3/R4) + (R2 + R3)/R5] = 102
TRIM R5 FOR GAIN
TRIM R1 FOR COMMON MODE REJECTION
BW = 450kHz
TRIM R5 FOR GAIN
TRIM R1 FOR COMMON MODE REJECTION
BW = 450kHz
V
IN
V
OUT
–
+
LT1220
LT1220 • TA01
R3
1k
R5
220
Ω
R4
10k
R2
1k
R1
10k
, LTC and LT are registered trademarks of Linear Technology Corporation
C-Load is a trademark of Linear Technology Corporation