LT1801/LT1802
1
18012fc
TYPICAL APPLICATION
DESCRIPTION
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
FEATURES
APPLICATIONS
Dual/Quad 80MHz, 25V/µs
Low Power Rail-to-Rail Input and
Output Precision Op Amps
The LT
®
1801/LT1802 are dual/quad, low power, high speed
rail-to-rail input and output operational ampli ers with
excellent DC performance. The LT1801/LT1802 feature
reduced supply current, lower input offset voltage, lower
input bias current and higher DC gain than other devices
with comparable bandwidth.
Typically, the LT1801/LT1802 have an input offset voltage
of less than 100μV, an input bias current of less than 50nA
and an open-loop gain of 85 thousand.
The LT1801/LT1802 have an input range that includes
both supply rails and an output that swings within 20mV
of either supply rail to maximize the signal dynamic range
in low supply applications.
The LT1801/LT1802 maintain their performance for sup-
plies from 2.3V to 12.6V and are specifi ed at 3V, 5V and
±5V supplies. The inputs can be driven beyond the supplies
without damage or phase reversal of the output.
The LT1801 is available in the MS8, SO-8 and the 3mm
× 3mm × 0.8mm dual fi ne pitch leadless package (DFN)
with the standard dual op amp pinout. The LT1802 features
the standard quad op amp confi guration and is available
in the 14-pin plastic SO package. The LT1801/LT1802 can
be used as plug-in replacements for many op amps to
improve input/output range and performance.
For a single version of these amplifi ers, see the LT1800
data sheet.
n
Gain Bandwidth Product: 80MHz
n
Input Common Mode Range Includes Both Rails
n
Output Swings Rail-to-Rail
n
Low Voltage Operation: Single or Split Supplies
2.3V to 12.6V
n
Low Quiescent Current: 2mA/Amplifi er Max
n
Input Offset Voltage: 350μV Max
n
Input Bias Current: 250nA Max
n
3mm × 3mm × 0.8mm DFN Package
n
Large Output Current: 50mA Typ
n
Low Voltage Noise: 8.5nV/√Hz Typ
n
Slew Rate: 25V/μs Typ
n
Common Mode Rejection: 105dB Typ
n
Power Supply Rejection: 97dB Typ
n
Open-Loop Gain: 85V/mV Typ
n
Operating Temperature Range: – 40°C to 85°C
n
LT1801 is Available in 8-Lead SO, MS8 and DFN
Packages
n
LT1802 is Available in 14-Lead SO Package
n
Low Voltage, High Frequency Signal Processing
n
Driving A/D Converters
n
Rail-to-Rail Buffer Amplifi ers
n
Active Filters
n
Video Line Driver
+
1/2 LT1801
47pF
220pF
V
IN
V
S
/2
909Ω
2.67k
909Ω
+
1/2 LT1801
22pF
V
OUT
470pF
18012 TA01
1.1k
2.21k
3V
1.1k
3V, 1MHz, 4th Order Butterworth Filter
FREQUENCY (Hz)
–80
GAIN (dB)
–40
0
–100
–60
–20
1k 100k 1M 10M 100M
18012 TA02
–120
10k
1MHz Filter Frequency Response
LT1801/LT1802
2
18012fc
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
(Note 1)
ORDER INFORMATION
Total Supply Voltage (V
S
to V
S
+
) .........................12.6V
Input Current (Note 2) ......................................... ±10mA
Output Short-Circuit Duration (Note 3) ........... Indefi nite
Operating Temperature Range (Note 4) ..40°C to 85°C
Specifi ed Temperature Range (Note 5) ....40°C to 85°C
Junction Temperature .......................................... 150°C
Storage Temperature Range ..................65°C to 150°C
Maximum Junction Temperature (DD Package) .... 125°C
Storage Temperature (DD Package) ....... 65°C to 125°C
Lead Temperature MSOP, SOIC
(Soldering, 10 sec) ............................................300°C
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION OPERATING TEMPERATURE RANGE
LT1801CDD#PBF LT1801CDD#TRPBF LAAM 8-Lead (3mm × 3mm) Plastic DFN 4C to 85°C
LT1801IDD#PBF LT1801IDD#TRPBF LAAM 8-Lead (3mm × 3mm) Plastic DFN 4C to 85°C
LT1801CMS8#PBF LT1801CMS8#TRPBF LTYR 8-Lead Plastic MSOP 40°C to 85°C
LT1801IMS8#PBF LT1801IMS8#TRPBF LTYS 8-Lead Plastic MSOP 40°C to 85°C
LT1801CS8#PBF LT1801CS8#TRPBF 1801 8-Lead Plastic SO 4C to 85°C
LT1801IS8#PBF LT1801IS8#TRPBF 1801I 8-Lead Plastic SO 4C to 85°C
LT1802CS#PBF LT1802CS#TRPBF LT1802CS 14-Lead Plastic SO 40°C to 85°C
LT1802IS#PBF LT1802IS#TRPBF LT1802IS 14-Lead Plastic SO –40°C to 85°C
Consult LTC Marketing for parts speci ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping
container.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel speci cations, go to:
http://www.linear.com/tapeandreel/
TOP VIEW
DD PACKAGE
8-LEAD
(
3mm × 3mm
)
PLASTIC DFN
5
6
7
8
4
3
2
1OUT A
–IN A
+IN A
V
V
+
OUT B
–IN B
+IN B
B
A
1
2
3
4
OUT A
–IN A
+IN A
V
8
7
6
5
V
+
OUT B
–IN B
+IN B
TOP VIEW
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 125°C, θ
JA
= 160°C/W, (Note 10)
EXPOSED PAD INTERNALLY CONNECTED TO V
.
(PCB CONNECTION OPTIONAL)
T
JMAX
= 150°C, θ
JA
= 250°C/W, (Note 10)
1
2
3
4
8
7
6
5
TOP VIEW
V
+
OUT B
–IN B
+IN B
OUT A
–IN A
+IN A
V
S8 PACKAGE
8-LEAD PLASTIC SO
+
+
TOP VIEW
S PACKAGE
14-LEAD PLASTIC SO
1
2
3
4
5
6
7
14
13
12
11
10
9
8
OUT A
–IN A
+IN A
V
+
+IN B
–IN B
OUT B
OUT D
–IN D
+IN D
V
+IN C
–IN C
OUT C
A
BC
D
T
JMAX
= 150°C, θ
JA
= 190°C/W, (Note 10) T
JMAX
= 150°C, θ
JA
= 160°C/W, (Note 10)
LT1801/LT1802
3
18012fc
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage V
CM
= 0V
V
CM
= 0V (MS8)
V
CM
= 0V (DD)
V
CM
= V
S
75
140
175
0.5
350
500
800
3
μV
μV
μV
mV
ΔV
OS
Input Offset Shift V
CM
= 0V to V
S
– 1.5V 20 185 μV
Input Offset Voltage Match
(Channel-to-Channel) (Note 9)
V
CM
= 0V
V
CM
= 0V (MS8)
V
CM
= 0V (DD)
100
150
280
650
900
1200
μV
μV
μV
I
B
Input Bias Current V
CM
= 1V
V
CM
= V
S
25
500
250
1500
nA
nA
Input Bias Current Match
(Channel-to-Channel) (Note 9)
V
CM
= 1V
V
CM
= V
S
25
25
350
500
nA
nA
I
OS
Input Offset Current V
CM
= 1V
V
CM
= V
S
25
25
200
200
nA
nA
Input Noise Voltage 0.1Hz to 10Hz 1.4 μV
P-P
e
n
Input Noise Voltage Density f = 10kHz 8.5 nV/√Hz
i
n
Input Noise Current Density f = 10kHz 1 pA/√Hz
C
IN
Input Capacitance 2pF
A
VOL
Large-Signal Voltage Gain V
S
= 5V, V
O
= 0.5V to 4.5V, R
L
= 1k at V
S
/2
V
S
= 5V, V
O
= 1V to 4V, R
L
= 100Ω at V
S
/2
V
S
= 3V, V
O
= 0.5V to 2.5V, R
L
= 1k at V
S
/2
35
3.5
30
85
8
85
V/mV
V/mV
V/mV
CMRR Common Mode Rejection Ratio V
S
= 5V, V
CM
= 0V to 3.5V
V
S
= 3V, V
CM
= 0V to 1.5V
85
78
105
97
dB
dB
CMRR Match (Channel-to-Channel) (Note 9) V
S
= 5V, V
CM
= 0V to 3.5V
V
S
= 3V, V
CM
= 0V to 1.5V
79
72
105
97
dB
dB
Input Common Mode Range 0 V
S
V
PSRR Power Supply Rejection Ratio V
S
= 2.5V to 10V, V
CM
= 0V 78 97 dB
PSRR Match (Channel-to-Channel) (Note 9) V
S
= 2.5V to 10V, V
CM
= 0V 72 97 dB
Minimum Supply Voltage (Note 6) 2.3 2.5 V
V
OL
Output Voltage Swing Low (Note 7) No Load
I
SINK
= 5mA
I
SINK
= 20mA
16
85
225
60
200
500
mV
mV
mV
V
OH
Output Voltage Swing High (Note 7) No Load
I
SOURCE
= 5mA
I
SOURCE
= 20mA
18
120
450
60
250
800
mV
mV
mV
I
SC
Short-Circuit Current V
S
= 5V
V
S
= 3V
20
20
45
40
mA
mA
I
S
Supply Current per Amplifi er 1.6 2 mA
GBW Gain Bandwidth Product Frequency = 2MHz 40 80 MHz
SR Slew Rate V
S
= 5V, A
V
= –1, R
L
= 1k, V
O
= 1V to 4V 12.5 25 V/μs
FPBW Full Power Bandwidth V
S
= 5V, A
V
= 1, V
O
= 4V
P-P
2MHz
HD Harmonic Distortion V
S
= 5V, A
V
= 1, R
L
= 1k, V
O
= 2V
P-P
, f
C
= 500kHz –75 dBc
t
S
Settling Time 0.01%, V
S
= 5V, V
STEP
= 2V, A
V
= 1, R
L
= 1k 250 ns
ΔG Differential Gain (NTSC) V
S
= 5V, A
V
= 2, R
L
= 15 0.35 %
Δθ Differential Phase (NTSC) V
S
= 5V, A
V
= 2, R
L
= 15 0.4 Deg
T
A
= 25°C, V
S
= 5V, 0V; V
S
= 3V, 0V; V
CM
= V
OUT
= half supply, unless otherwise noted.

LT1801CMS8#PBF

Mfr. #:
Manufacturer:
Analog Devices / Linear Technology
Description:
High Speed Operational Amplifiers 2x 80MHz, 25V/ s L Pwr R2R In & Out Pre
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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