LT1800
1
1800fa
TYPICAL APPLICATION
DESCRIPTION
80MHz, 25V/µs Low Power
Rail-to-Rail Input and Output
Precision Op Amp
The LT
®
1800 is a low power, high speed rail-to-rail input and
output operational amplifi er with excellent DC performance.
The LT1800 features reduced supply current, lower input
offset voltage, lower input bias current and higher DC gain
than other devices with comparable bandwidth.
The LT1800 has 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 LT1800 maintains its performance for supplies from
2.3V to 12.6V and is 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 LT1800 is available in the 8-pin SO package with
the standard op amp pinout and in the 5-pin TSOT-23
package. For dual and quad versions of the LT1800, see
the LT1801/LT1802 data sheet. The LT1800 can be used
as a plug-in replacement for many op amps to improve
input/output range and performance.
Single Supply 1A Laser Driver Amplifi er
FEATURES
APPLICATIONS
n
Gain Bandwidth Product: 80MHz
n
Input Common Mode Range Includes Both Rails
n
Output Swings Rail-to-Rail
n
Low Quiescent Current: 2mA Max
n
Input Offset Voltage: 350μV Max
n
Input Bias Current: 250nA Max
n
Low Voltage Noise: 8.5nV/√Hz
n
Slew Rate: 25V/µs
n
Common Mode Rejection: 105dB
n
Power Supply Rejection: 97dB
n
Open-Loop Gain: 85V/mV
n
Operating Temperature Range: –40°C to 85°C
n
Available in the 8-Pin SO and 5-Pin Low Profi le
(1mm) ThinSOT™ Packages
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
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.
Laser Driver Amplifi er 500mA Pulse Response
+
LT1800
V
IN
DO NOT FLOAT
IR LASER
INFINEON
SFH495
Q1
ZETEX
FMMT619
5V
R2
330Ω
R1
1Ω
1800 TA01a
C1
39pF
R3
10Ω
1800 TA01b
50ns/DIV
100mA/DIV
LT1800
2
1800fa
ABSOLUTE MAXIMUM RATINGS
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
(Note 1)
1
2
3
4
8
7
6
5
TOP VIEW
NC
V
S
+
V
OUT
NC
NC
–IN
+IN
V
S
S8 PACKAGE
8-LEAD PLASTIC SO
+
T
JMAX
= 150°C, θ
JA
= 190°C/W
V
OUT
1
V
S
2
TOP VIEW
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
+IN 3
5 V
S
+
4 –IN
+
T
JMAX
= 150°C, θ
JA
= 250°C/W
PIN CONFIGURATION
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE
LT1800CS8#PBF LT1800CS8#TRPBF 1800 8-Lead Plastic SO 0°C to 70°C
LT1800IS8#PBF LT1800IS8#TRPBF 1800I 8-Lead Plastic SO –40°C to 85°C
LT1800CS5#PBF LT1800CS5#TRPBF LTRN 5-Lead Plastic TSOT-23 0°C to 70°C
LT1800IS5#PBF LT1800IS5#TRPBF LTRP 5-Lead Plastic TSOT-23 –40°C to 85°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to:
http://www.linear.com/tapeandreel/
Specifi ed Temperature Range (Note 5) ....40°C to 85°C
Junction Temperature ........................................... 150°C
Storage Temperature Range ...................65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage V
CM
= 0V
V
CM
= 0V (SOT-23)
V
CM
= V
S
V
CM
= V
S
(SOT-23)
75
300
0.5
0.7
350
750
3
3.5
µV
µV
mV
mV
ΔV
OS
Input Offset Shift V
CM
= 0V to V
S
– 1.5V 20 180 µV
I
B
Input Bias Current V
CM
= 1V
V
CM
= V
S
25
500
250
1500
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
ELECTRICAL CHARACTERISTICS
T
A
= 25°C. V
S
= 5V, 0V; V
S
= 3V, 0V; V
CM
= V
OUT
= half supply, unless otherwise noted.
LT1800
3
1800fa
ELECTRICAL CHARACTERISTICS
T
A
= 25°C. V
S
= 5V, 0V; V
S
= 3V, 0V; V
CM
= V
OUT
= half supply, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
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 f = 100kHz 2 pF
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
Input Common Mode Range 0 V
S
V
PSRR Power Supply Rejection Ratio V
S
= 2.5V to 10V, V
CM
= 0V 80 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
12
80
225
50
160
450
mV
mV
mV
V
OH
Output Voltage Swing High (Note 7) No Load
I
SOURCE
= 5mA
I
SOURCE
= 20mA
16
120
450
60
250
850
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
= 4V 13 25 V/µs
FPBW Full Power Bandwidth V
S
= 5V, V
OUT
= 4V
P-P
2 MHz
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
= 150Ω 0.35 %
Δθ
Differential Phase (NTSC) V
S
= 5V, A
V
= +2, R
L
= 150Ω 0.4 Deg
The l denotes the specifi cations which apply over the temperature range of 0°C ≤ T
A
≤ 70°C. V
S
= 5V, 0V; V
S
= 3V, 0V;
V
CM
= V
OUT
= half supply, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage V
CM
= 0V
V
CM
= 0V (SOT-23)
V
CM
= V
S
V
CM
= V
S
(SOT-23)
l
l
l
l
125
300
0.6
0.7
500
1250
3.5
3.75
µV
µV
mV
mV
ΔV
OS
Input Offset Shift V
CM
= 0V to V
S
– 1.5V
l
30 275 µV
V
OS
TC Input Offset Voltage Drift (Note 8)
l
1.5 5 µV/°C
I
B
Input Bias Current V
CM
= 1V
V
CM
= V
S
– 0.2V
l
l
50
550
300
1750
nA
nA
I
OS
Input Offset Current V
CM
= 1V
V
CM
= V
S
– 0.2V
l
l
25
25
250
250
nA
nA
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
l
l
l
30
3
25
75
6
75
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
l
l
82
74
101
93
dB
dB

LT1800IS8#TRPBF

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Precision Amplifiers 80MHz, 25V/ s L Pwr R2R In & Out Prec O
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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