LT1722/LT1723/LT1724
Single, Dual, Quad 200MHz
Low Noise Precision Op Amps
FEATURES
s
s
s
s
s
s
s
s
s
s
s
DESCRIPTIO
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
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 compa-
rable 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.
APPLICATIO S
s
s
s
s
s
s
Video and RF Amplification
ADSL, HDSL II, VDSL Receivers
Active Filters
Wideband Amplifiers
Buffers
Data Acquisition Systems
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
C1 5pF
R3
750Ω
Differential Video Line Driver
Line Driver Mulitburst Video Signal
R5 2k
R7
62.5Ω
V
IN
C2 5pF
R4 2k
–V
OUT
62.5Ω
–V
IN
/2 LOAD
125Ω
CAT-5
TWISTED PAIR
+V
OUT
0.5V/DIV
1/2 LT1723
V
IN
75Ω
SOURCE
R2
2k
V
IN
/2 62.5Ω
+V
OUT
LOAD
V
IN
1V/DIV
–V
OUT
0.5V/DIV
R1
75Ω
R6
62.5Ω
1723 TA01
1723 TA02
1/2 LT1723
–V
IN
U
172234fa
U
U
+
+
–
–
1
LT1722/LT1723/LT1724
ABSOLUTE
AXI U RATI GS
(Note 1)
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
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
PACKAGE/ORDER I FOR ATIO
TOP VIEW
NC 1
–IN 2
+IN 3
V
–
4
8
NC
V
+
OUT
NC
ORDER PART
NUMBER
7
6
5
–
+
LT1722CS8
LT1722IS8
S8 PART
MARKING
1722
1722I
ORDER PART
NUMBER
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 150°C,
θ
JA
= 150°C/W
TOP VIEW
OUT A 1
–IN A 2
+IN A 3
V
–
4
B
A
8
7
6
5
V
+
OUT B
–IN B
+IN B
LT1723CS8
LT1723IS8
S8 PART
MARKING
1723
1723I
ORDER PART
NUMBER
LT1724CS
LT1724IS
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 150°C,
θ
JA
= 190°C/W
TOP VIEW
OUT A 1
–IN A 2
+IN A 3
V
+
4
+IN B 5
–IN B 6
OUT B 7
14 OUT D
–
A
+
D
–
13 –IN D
+
12 +IN D
11 V
–
+
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
Consult LTC Marketing for parts specified with wider operating temperature ranges.
*The temperature grades are identified by a label on the shipping container.
172234fa
2
U
U
W
W W
U
W
TOP VIEW
OUT 1
V
–
2
ORDER PART
NUMBER
5 V
+
+IN 3
+
–
LT1722CS5
LT1722IS5
S5 PART
MARKING*
LTZB
ORDER PART
NUMBER
4 –IN
S5 PACKAGE
5-LEAD PLASTIC SOT-23
T
JMAX
= 150°C,
θ
JA
= 250°C/W
TOP VIEW
OUT A
–IN A
+IN A
V
–
1
2
3
4
8
7
6
5
V
+
OUT B
–IN B
+IN B
A
B
LT1723CMS8
LT1723IMS8
MS8 PART
MARKING
LTYC
LTZA
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 150°C,
θ
JA
= 250°C/W
LT1722/LT1723/LT1724
ELECTRICAL CHARACTERISTICS
SYMBOL
V
OS
I
OS
I
B
e
n
i
n
R
IN
C
IN
PARAMETER
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 –
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
Output Resistance
Channel Separation
Supply Current
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
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
f = 10kHz
f = 10kHz
V
CM
=
±3.5V
Differential
5
3.5
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
80
78
10
7
±3.2
±3.1
23
35
45
115
–3.5
CMRR
PSRR
A
VOL
V
OUT
I
OUT
I
SC
SR
GBW
t
S
t
r
, t
f
R
O
I
S
82
4.5
T
A
= 25°C. V
S
= 5V, V
CM
= 2.5V, R
L
to 2.5V, unless otherwise noted.
SYMBOL
V
OS
I
OS
I
B
e
n
i
n
R
IN
C
IN
PARAMETER
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 –
Common Mode Rejection Ratio
Large-Signal Voltage Gain
Output Swing+
Output Swing–
CONDITIONS
(Note 6)
LT1722 SOT-23 and LT1723 MS8
MIN
TYP
250
350
20
20
4
1.1
32
55
2
4
1
100
10
3.8
0.9
MAX
550
800
300
300
UNITS
µV
µV
nA
nA
nV/√Hz
pA/√Hz
MΩ
kΩ
pF
V
V
dB
V/mV
V
V
172234fa
f = 10kHz
f = 10kHz
V
CM
= 1.5V to 3.5V
Differential
5
3.5
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
80
4
3.6
1.5
CMRR
A
VOL
V
OUT
1.4
3
LT1722/LT1723/LT1724
ELECTRICAL CHARACTERISTICS
SYMBOL
I
OUT
I
SC
SR
GBW
t
r
, t
f
PARAMETER
Output Current
Short-Circuit Current
Slew Rate
Full Power Bandwidth
Gain Bandwidth (Note 10)
Rise Time, Fall Time
Overshoot
Propagation Delay
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
10
22
40
115
TYP
20
55
70
8.7
180
5
16
3
0.19
90
3.8
MAX
UNITS
mA
mA
V/µs
MHz
MHz
ns
%
ns
Ω
dB
mA
R
O
I
S
CONDITIONS
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
82
5
The
q
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
V
OS
PARAMETER
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)
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
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
172234fa
4
LT1722/LT1723/LT1724
The
q
denotes the specifications which apply over the temperature range of
0°C
≤
T
A
≤
70°C. V
S
= 5V, V
CM
= 2.5V, R
L
to 2.5V, unless otherwise noted. (Note 5)
SYMBOL
V
OS
PARAMETER
Input Offset Voltage
Input V
OS
Drift
I
OS
I
B
Input Offset Current
Input Bias Current
Input Voltage Range +
Input Voltage Range –
CMRR
A
VOL
V
OUT
I
OUT
I
SC
SR
GBW
I
S
Common Mode Rejection Ratio
Large-Signal Voltage Gain
Output Swing+
Output Swing–
Output Current
Short-Circuit Current
Slew Rate
Gain Bandwidth (Note 10)
Channel Separation
Supply Current
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)
f = 200kHz
V
OUT
= 1.5V to 3.5V, R
L
= 500Ω
CONDITIONS
(Note 6)
LT1722 SOT-23 and LT1723MS8
(Note 9)
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
ELECTRICAL CHARACTERISTICS
MIN
TYP
MAX
850
950
UNITS
µV
µV
µV/°C
nA
nA
V
V
dB
V/mV
V
V
mA
mA
V/µs
MHz
dB
3
7
350
350
3.5
1.5
75
3
3.55
1.45
9
11
30
100
81
5.95
mA
The
q
denotes the specifications which apply over the temperature range of –40°C
≤
T
A
≤
85°C. V
S
=
±
5V, V
CM
= 0V,
unless otherwise noted. (Note 5)
SYMBOL
V
OS
PARAMETER
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
=
±2.0V
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
CONDITIONS
(Note 6)
LT1722 SOT-23 and LT1723 MS8
(Note 9)
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
MIN
TYP
MAX
900
1100
UNITS
µV
µV
µV/°C
nA
nA
V
V
dB
dB
V/mV
V/mV
V
V
mA
mA
V/µs
MHz
dB
3
10
400
400
3.5
–3.5
75
75
8
5
±3.1
±3.0
20
25
25
90
80
5.95
mA
172234fa
5
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