LT1722/LT1723/LT1724
Single, Dual, Quad 200MHz
Low Noise Precision Op Amps
FEATURES
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DESCRIPTION
The LT
®
1722/LT1723/LT1724 are single/dual/quad, low
noise, low power, high speed operational amplifiers. These
products feature lower input offset voltage, lower input bias
current and higher DC gain than devices with comparable
bandwidth. The 200MHz gain bandwidth ensures high
open-loop gain at video frequencies.
The low input noise voltage is achieved with reduced
supply current. The total noise is optimized for a source
resistance between 0.8k and 12k. Due to the input bias
current cancellation technique used, the resistance seen
by each input does not need to be balanced.
The output drives a 150Ω load to ±3V with ±5V supplies.
On a single 5V supply the output swings from 1.5V to
3.5V with a 500Ω load connected to 2.5V. The amplifier
is unity-gain stable (C
LOAD
≤ 100pF).
The LT1722/LT1723/LT1724 are manufactured on Linear
Technology’s advanced low voltage complementary
bipolar process. The LT1722 is available in the SO-8 and
5-pin SOT-23 packages. The LT1723 is available in the
SO-8 and MS8 packages. The LT1724 is available in the
14-lead SO package.
3.8nV/√Hz Input Noise Voltage
3.7mA Supply Current
200MHz Gain Bandwidth
Low Total Harmonic Distortion: – 85dBc at 1MHz
70V/μs Slew Rate
400μV Maximum Input Offset Voltage
300nA Maximum Input Bias Current
Unity-Gain Stable
Capacitive Load Stable Up to 100pF
23mA Minimum Output Current
Specified at ±5V and Single 5V
Low Profile (1mm) SOT-23 (ThinSot
™
) Package
APPLICATIONS
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Video and RF Amplification
ADSL, HDSL II, VDSL Receivers
Active Filters
Wideband Amplifiers
Buffers
Data Acquisition Systems
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
TYPICAL APPLICATION
Differential Video Line Driver
C1 5pF
R3
750Ω
R5 2k
Line Driver Mulitburst Video Signal
R7
62.5Ω
V
IN
C2 5pF
125Ω
CAT-5
TWISTED PAIR
V
IN
75Ω
SOURCE
R2
2k
R1
75Ω
+
R4 2k
+
–
1/2 LT1723
+V
OUT
0.5V/DIV
V
IN
1V/DIV
–V
OUT
0.5V/DIV
V
IN
/2 62.5Ω
+V
OUT
LOAD
–V
OUT
62.5Ω
–V
IN
/2 LOAD
–
1/2 LT1723
–V
IN
R6
62.5Ω
1723 TA01
1723 TA02
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LT1722/LT1723/LT1724
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Total Supply Voltage (V
+
to V
–
) ............................. 12.6V
Input Voltage............................................................. ±V
S
Differential Input Voltage (Note 2) .........................±0.7V
Input Current (Note 2) .......................................... ±10mA
Output Short-Circuit Duration (Note 3) ............ Indefinite
Operating Temperature Range (Note 4) ...–40°C to 85°C
Specified Temperature Range (Note 5) ....–40°C to 85°C
Maximum Junction Temperature .......................... 150°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................... 300°C
PIN CONFIGURATION
LT1722
NC 1
–IN 2
+IN 3
V
–
4
TOP VIEW
8
NC
V
+
OUT
NC
LT1722
OUT 1
V
–
2
+IN 3
+
–
4 –IN
TOP VIEW
5 V
+
LT1723
OUT A 1
–IN A 2
+IN A 3
V
–
4
A
B
TOP VIEW
8
7
6
5
V
+
OUT B
–IN B
+IN B
–
+
7
6
5
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 150°C,
θ
JA
= 150°C/W
LT1723
OUT A
–IN A
+IN A
V
–
1
2
3
4
TOP VIEW
8
7
6
5
V
OUT B
–IN B
+IN B
+
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
T
JMAX
= 150°C,
θ
JA
= 250°C/W
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 150°C,
θ
JA
= 190°C/W
TOP VIEW
LT1724
OUT A 1
–IN A 2
+IN A 3
V
+
4
+IN B 5
–IN B 6
OUT B 7
14 OUT D
A
B
–
A
+
D
–
13 –IN D
+
12 +IN D
11 V
–
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 150°C,
θ
JA
= 250°C/W
+
B
–
C
+
10 +IN C
–
8 –IN C
8
OUT C
S PACKAGE
14-LEAD PLASTIC SO
T
JMAX
= 150°C,
θ
JA
= 100°C/W
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LT1722/LT1723/LT1724
ORDER INFORMATION
LEAD FREE FINISH
LT1722CS8#PBF
LT1722IS8#PBF
LT1722CS5#PBF
LT1722IS5#PBF
LT1723CS8#PBF
LT1723IS8#PBF
LT1723CMS8#PBF
LT1723IMS8#PBF
LT1724CS#PBF
LT1724IS#PBF
TAPE AND REEL
LT1722CS8#TRPBF
LT1722IS8#TRPBF
LT1722CS5#TRPBF
LT1722IS5#TRPBF
LT1723CS8#TRPBF
LT1723IS8#TRPBF
LT1723CMS8#TRPBF
LT1723IMS8#TRPBF
LT1724CS#TRPBF
LT1724IS#TRPBF
PART MARKING*
1722
1722I
LTZB
LTZB
1723
1723I
LTYC
LTZA
LT1724CS
LT1724IS
PACKAGE DESCRIPTION
8-Lead Plastic SO
8-Lead Plastic SO
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic MSOP
8-Lead Plastic MSOP
14-Lead Plastic SO
14-Lead Plastic SO
SPECIFIED
TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to:
http://www.linear.com/tapeandreel/
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LT1722/LT1723/LT1724
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER
V
OS
I
OS
I
B
e
n
i
n
R
IN
C
IN
Input Offset Voltage
Input Offset Current
Input Bias Current
Input Noise Voltage
Input Noise Current
Input Resistance
Input Capacitance
Input Voltage Range +
Input Voltage Range –
CMRR
PSRR
A
VOL
V
OUT
I
OUT
I
SC
SR
GBW
t
S
t
r
, t
f
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Output Swing
Output Current
Short-Circuit Current
Slew Rate
Full Power Bandwidth
Gain Bandwidth
Settling Time
Rise Time, Fall Time
Overshoot
Propagation Delay
R
O
I
S
Output Resistance
Channel Separation
Supply Current
V
CM
= ±3.5V
V
S
= ±2.3V to ± 5.5V
V
OUT
= ±3V, R
L
= 500Ω
V
OUT
= ±3V, R
L
= 150Ω
R
L
= 500Ω, V
IN
= ±10mV
R
L
= 150Ω, V
IN
= ±10mV
V
OUT
= ± 3V, 10mV Overdrive
V
OUT
= 0V, V
IN
= ±1V
A
V
= –1, (Note 7)
3V Peak, (Note 8)
f = 200kHz
A
V
= –1, 2V, 0.1%
A
V
= –1, 2V, 0.01%
A
V
= 1, 10% to 90%, V
IN
= 0.2V
P-P
, R
L
= 150Ω
A
V
= 1, V
IN
= 0.2V
P-P
, R
L
= 150Ω, R
F
= 0Ω
50% V
IN
to 50% V
OUT
= 0.2V
P-P
, R
L
= 150Ω
A
V
= 1, f = 1MHz
V
OUT
= ±3V, R
L
= 150Ω
Per Amplifier
82
115
3.5
80
78
10
7
±3.2
±3.1
23
35
45
f = 10kHz
f = 10kHz
V
CM
= ±3.5V
Differential
5
T
A
= 25°C, V
S
= ±5V, V
CM
= 0V, unless otherwise noted.
MIN
TYP
100
150
40
40
3.8
1.2
35
50
2
4
–4
100
90
17
14
±3.8
±3.4
50
90
70
3.7
200
91
112
6
15
3
0.15
90
3.7
4.5
–3.5
MAX
400
650
300
300
UNITS
μV
μV
nA
nA
nV/√Hz
pA/√Hz
MΩ
kΩ
pF
V
V
dB
dB
V/mV
V/mV
V
V
mA
mA
V/μs
MHz
MHz
ns
ns
ns
%
ns
Ω
dB
mA
CONDITIONS
(Note 6)
LT1722 SOT-23 and LT1723 MS8
T
A
= 25°C. V
S
= 5V, V
CM
= 2.5V, R
L
to 2.5V, unless otherwise noted.
V
OS
I
OS
I
B
e
n
i
n
R
IN
C
IN
Input Offset Voltage
Input Offset Current
Input Bias Current
Input Noise Voltage
Input Noise Current
Input Resistance
Input Capacitance
Input Voltage Range +
Input Voltage Range –
3.5
f = 10kHz
f = 10kHz
V
CM
= 1.5V to 3.5V
Differential
5
(Note 6)
LT1722 SOT-23 and LT1723 MS8
250
350
20
20
4
1.1
32
55
2
4
1
1.5
550
800
300
300
μV
μV
nA
nA
nV/√Hz
pA/√Hz
MΩ
kΩ
pF
V
V
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LT1722/LT1723/LT1724
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER
CMRR
A
VOL
V
OUT
I
OUT
I
SC
SR
GBW
t
r
, t
f
Common Mode Rejection Ratio
Large-Signal Voltage Gain
Output Swing+
Output Swing–
Output Current
Short-Circuit Current
Slew Rate
Full Power Bandwidth
Gain Bandwidth (Note 10)
Rise Time, Fall Time
Overshoot
Propagation Delay
R
O
I
S
Output Resistance
Channel Separation
Supply Current
T
A
= 25°C. V
S
= 5V, V
CM
= 2.5V, R
L
to 2.5V, unless otherwise noted.
MIN
80
4
3.6
10
22
40
115
TYP
100
10
3.8
0.9
20
55
70
8.7
180
5
16
3
0.19
82
90
3.8
5
1.4
MAX
UNITS
dB
V/mV
V
V
mA
mA
V/µs
MHz
MHz
ns
%
ns
Ω
dB
mA
CONDITIONS
V
CM
= 1.5V to 3.5V
V
OUT
= 1.5V to 3.5V, R
L
= 500Ω
R
L
= 500Ω, V
IN
= ±10mV
R
L
= 500Ω, V
IN
= ±10mV
V
OUT
= 3.5V or 1.5V, 10mV Overdrive
V
OUT
= 2.5V, V
IN
= ±1V
A
V
= –1, (Note 7)
1V Peak, (Note 8)
f = 200kHz
A
V
= 1, 10% to 90%, V
IN
= 0.2V
P-P
, R
L
= 500Ω
A
V
= 1, V
IN
= 0.2V
P-P
, R
L
= 500Ω
50% V
IN
to 50% V
OUT
, 0.1V, R
L
= 500Ω
A
V
= 1, f = 1MHz
V
OUT
= 1.5V to 3.5V, R
L
= 500Ω
Per Amplifier
The
●
denotes the specifications which apply over the temperature range of 0°C ≤ T
A
≤ 70°C. V
S
= ±5V, V
CM
= 0V,
unless otherwise noted. (Note 5)
SYMBOL PARAMETER
V
OS
Input Offset Voltage
Input V
OS
Drift
I
OS
I
B
Input Offset Current
Input Bias Current
Input Voltage Range +
Input Voltage Range –
CMRR
PSRR
A
VOL
V
OUT
I
OUT
I
SC
SR
GBW
I
S
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Output Swing
Output Current
Short-Circuit Current
Slew Rate
Gain Bandwidth
Channel Separation
Supply Current
V
CM
= ±3.5V
V
S
= ±2.3V to ±5.5V
V
OUT
= ±3V, R
L
= 500Ω
V
OUT
= ±3V, R
L
= 150Ω
R
L
= 500Ω, V
IN
= ±10mV
R
L
= 150Ω, V
IN
= ±10mV
V
OUT
= ±3V, 10mV Overdrive
V
OUT
= 0V, V
IN
= ±1V
A
V
= –1, (Note 7)
f = 200kHz
V
OUT
= ±3V, R
L
= 150Ω
Per Amplifier
CONDITIONS
(Note 6)
LT1722 SOT-23 and LT1723 MS8
(Note 9)
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
MIN
TYP
MAX
700
850
UNITS
μV
μV
μV/°C
nA
nA
V
V
dB
dB
V/mV
V/mV
V
V
mA
mA
V/μs
MHz
dB
3
7
350
350
3.5
–3.5
75
76
9
6
±3.15
±3.05
22
30
35
100
81
5.45
mA
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