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LT1221CS8#PBF

P1-P3P4-P6P7-P9P10-P12
1
LT1221
TYPICAL APPLICATIO
U
DESCRIPTIO
U
APPLICATIO S
U
FEATURES
150MHz, 250V/µs, A
V
≥ 4
Operational Amplifier
■
Gain-Bandwidth: 150MHz
■
Gain of 4 Stable
■
Slew Rate: 250V/µs
■
Input Noise Voltage: 6nV/√Hz
■
C-Load
TM
Op Amp Drives Capacitive Loads
■
Maximum Input Offset Voltage: 600µV
■
Maximum Input Bias Current: 300nA
■
Maximum Input Offset Current: 300nA
■
Minimum Output Swing Into 500Ω: ±12V
■
Minimum DC Gain: 50V/mV, R
L
= 500Ω
■
Settling Time to 0.1%: 65ns, 10V Step
■
Settling Time to 0.01%: 85ns, 10V Step
■
Differential Gain: 0.08%, A
V
= 4, R
L
= 150Ω
■
Differential Phase: 0.2°, A
V
= 4, R
L
= 150Ω
The LT
®
1221 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.
Summing Amplifier
Summing Amplifier Large-Signal Response
LT1221 • TA02
V
S
= ±15V
V
IN
= 10V
P-P
f = 2MHz
■
Wideband Amplifiers
■
Buffers
■
Active Filters
■
Video and RF Amplification
■
Cable Drivers
■
8-, 10-, 12-Bit Data Acquisition Systems
LT1221 • TA01
+
–
1k
1k
1k
1k
LT1221
V
A
V
B
V
C
V
OUT
, LTC and LT are registered trademarks of Linear Technology Corporation
C-Load is a trademark of Linear Technology Corporation
2
LT1221
1
2
3
4
8
7
6
5
TOP VIEW
NULL
–IN
+IN
V
–
NULL
V
+
V
OUT
NC
N8 PACKAGE
8-LEAD PLASTIC DIP
S8 PACKAGE
8-LEAD PLASTIC SOIC
J8 PACKAGE
8-LEAD CERAMIC DIP
A
U
G
W
A
W
U
W
ARB
S
O
LU
T
EXI T
I
S
Total Supply Voltage (V
+
to V
–
) ............................. 36V
Differential Input Voltage ........................................ ±6V
Input Voltage .......................................................... ±V
S
Output Short-Circuit Duration (Note 2)........... Indefinite
Specified Temperature Range
LT1221C (Note 3)................................... 0°C to 70°C
LT1221M (OBSOLETE) ............... –55°C to 125°C
Operating Temperature Range
LT1221C........................................... –40°C TO 85°C
LT1221M (OBSOLETE) ............... –55°C to 125°C
Maximum Junction Temperature (See Below)
Plastic Package ............................................... 150°C
Ceramic Package (OBSOLETE) .................. 175°C
Storage Temperature Range ................ –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
WU
U
PACKAGE
/
O
RDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
LT1221CN8
LT1221CS8
ORDER PART
NUMBER
T
JMAX
= 150°C,
θ
JA
= 130°C/W (N)
T
JMAX
= 150°C,
θ
JA
= 190°C/W (S)
S8 PART MARKING
1221
ORDER PART
NUMBER
SPECIAL
ORDER
CONSULT
FACTORY
T
JMAX
= 175°C,
θ
JA
= 150°C/W
TOP VIEW
V
+
NULL
NULL
–IN
V
OUT
NC
+IN
V
–
8
7
6
5
3
2
1
4
H PACKAGE
8-LEAD TO-5 METAL CAN
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage (Note 4) 200 600 µV
I
OS
Input Offset Current 100 300 nA
I
B
Input Bias Current 100 300 nA
e
n
Input Noise Voltage f = 10kHz 6 nV/√Hz
i
n
Input Noise Current f = 10kHz 2 pA/√Hz
R
IN
Input Resistance V
CM
= ±12V 20 45 MΩ
Differential 80 kΩ
C
IN
Input Capacitance 2pF
Input Voltage Range (Positive) 12 14 V
Input Voltage Range (Negative) –13 –12 V
CMRR Common Mode Rejection Ratio V
CM
= ±12V 92 114 dB
PSRR Power Supply Rejection Ratio V
S
= ±5V to ±15V 90 110 dB
A
VOL
Large-Signal Voltage Gain V
OUT
= ±10V, R
L
= 500Ω 50 100 V/mV
V
OUT
Output Swing R
L
= 500Ω 12 13 ±V
I
OUT
Output Current V
OUT
= ±12V 24 26 mA
SR Slew Rate (Note 5) 200 250 V/µs
Full Power Bandwidth 10V Peak (Note 6) 4 MHz
GBW Gain-Bandwidth f = 1MHz 150 MHz
T
A
= 25°C, V
S
= ±15V, T
A
= 25°C, V
CM
= 0V, unless otherwise specified.
ELECTRICAL CHARACTERISTICS
OBSOLETE PACKAGE
T
JMAX
= 175°C,
θ
JA
= 100°C/W (J)
OBSOLETE PACKAGE
(Note 1)
LT1221MJ8
Consider the N8 or S8 Package for Alternate Source
Consider the N8 Package for Alternate Source
ORDER PART
NUMBER
3
LT1221
ELECTRICAL CHARACTERISTICS
V
S
= ±15V, T
A
= 25°C, V
CM
= 0V, unless otherwise specified.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
t
r
, t
f
Rise Time, Fall Time A
V
= 4, 10% to 90%, 0.1V 3.2 ns
Overshoot A
V
= 4, 0.1V 10 %
Propagation Delay A
V
= 4, 50% V
IN
to 50% V
OUT
, 0.1V 5.4 ns
t
s
Settling Time 10V Step, 0.1% 65 ns
10V Step, 0.01% 85 ns
Differential Gain f = 3.58MHz, R
L
= 150Ω (Note 7) 0.08 %
f = 3.58MHz, R
L
= 1k (Note 7) 0.02 %
Differential Phase f = 3.58MHz, R
L
= 150Ω (Note 7) 0.20 DEG
f = 3.58MHz, R
L
= 1k (Note 7) 0.05 DEG
R
O
Output Resistance A
V
= 4, f = 1MHz 0.3 Ω
I
S
Supply Current 8 10.5 mA
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage (Note 4) ● 0.2 1.5 mV
Input V
OS
Drift ● 15 µV/°C
I
OS
Input Offset Current ● 100 400 nA
I
B
Input Bias Current ● 100 400 nA
CMRR Common Mode Rejection Ratio V
CM
= ±12V ● 92 114 dB
PSRR Power Supply Rejection Ratio V
S
= ±5V to ±15V ● 90 110 dB
A
VOL
Large-Signal Voltage Gain V
OUT
= ±10V, R
L
= 500Ω ● 40 100 V/mV
V
OUT
Output Swing R
L
= 500Ω ● 12 13 ±V
I
OUT
Output Current V
OUT
= ±12V ● 24 26 mA
SR Slew Rate (Note 5) ● 180 250 V/µs
I
S
Supply Current ● 811 mA
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage (Note 4) ● 0.2 2 mV
Input V
OS
Drift ● 15 µV/°C
I
OS
Input Offset Current ● 100 800 nA
I
B
Input Bias Current ● 100 1000 nA
CMRR Common Mode Rejection Ratio V
CM
= ±12V ● 92 114 dB
PSRR Power Supply Rejection Ratio V
S
= ±5V to ±15V ● 90 110 dB
A
VOL
Large-Signal Voltage Gain V
OUT
= ±10V, R
L
= 500Ω ● 12.5 100 V/mV
V
OUT
Output Swing R
L
= 500Ω ● 10 13 ±V
R
L
= 1k ● 12 13 ±V
I
OUT
Output Current V
OUT
= ±10V ● 20 26 mA
V
OUT
= ±12V ● 12 13 mA
SR Slew Rate (Note 5) ● 130 250 V/µs
I
S
Supply Current ● 811 mA
The ● denotes the specifications which apply over the temperature range –55°C ≤ T
A
≤ 125°C, otherwise specifications are at
T
A
= 25°C. V
S
= ±15V, V
CM
= 0V, unless otherwise specified.
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: A heat sink may be required when the output is shorted indefinitely.
Note 3: Commercial parts are designed to operate over –40°C to 85°C, but
are not 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 4: Input offset voltage is pulse tested and is exclusive of warm-up drift.
Note 5: Slew rate is measured between ±10V on an output swing of ±12V.
Note 6: FPBW = SR/2πV
P
.
Note 7: Differential Gain and Phase are tested in A
V
= 4 with five amps in
series. Attenuators of 1/4 are used as loads (36.5Ω, 110Ω and
249Ω, 750Ω).
The ● denotes the specifications which apply over the temperature range 0°C ≤ T
A
≤ 70°C, otherwise specifications are at T
A
= 25°C.
V
S
= ±15V, V
CM
= 0V, unless otherwise specified.
P1-P3P4-P6P7-P9P10-P12

LT1221CS8#PBF

Mfr. #:
Buy LT1221CS8#PBF
Manufacturer:
Analog Devices Inc.
Description:
High Speed Operational Amplifiers 150MHz, 250V/ s, AV >/=4 Op Amp
Lifecycle:
New from this manufacturer.
Delivery:
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