LINER LT1800IS5

LT1800
80MHz, 25V/µs Low Power
Rail-to-Rail Input and Output
Precision Op Amp
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FEATURES
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DESCRIPTIO
Gain Bandwidth Product: 80MHz
Input Common Mode Range Includes Both Rails
Output Swings Rail-to-Rail
Low Quiescent Current: 2mA Max
Input Offset Voltage: 350µV Max
Input Bias Current: 250nA Max
Low Voltage Noise: 8.5nV/√Hz
Slew Rate: 25V/µs
Common Mode Rejection: 105dB
Power Supply Rejection: 97dB
Open-Loop Gain: 85V/mV
Available in the 8-Pin SO and 5-Pin Low Profile
(1mm) ThinSOTTM Packages
Operating Temperature Range: – 40°C to 85°C
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APPLICATIO S
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Low Voltage, High Frequency Signal Processing
Driving A/D Converters
Rail-to-Rail Buffer Amplifiers
Active Filters
Video Line Driver
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 specified 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 SOT-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.
, LTC and LT are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
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The LT ®1800 is a low power, high speed rail-to-rail input
and output operational amplifier 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.
TYPICAL APPLICATIO
Laser Driver Amplifier
500mA Pulse Response
Single Supply 1A Laser Driver Amplifier
5V
VIN
DO NOT FLOAT
+
–
R3
10Ω
LT1800
Q1
ZETEX
FMMT619
C1
39pF
R2
330Ω
100mA/DIV
IR LASER
INFINEON
SFH495
R1
1Ω
1800 TA01
50ns/DIV
1800 TA02
1800f
1
LT1800
W W
W
AXI U
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ABSOLUTE
RATI GS
(Note 1)
Total Supply Voltage (VS– to VS+) ......................... 12.6V
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
Junction Temperature .......................................... 150°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
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U
W
PACKAGE/ORDER I FOR ATIO
ORDER PART
NUMBER
NC 1
–IN 2
+IN 3
VS–
–
+
4
8
NC
7
VS+
6
VOUT
5
NC
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 150°C, θJA = 190°C/ W
LT1800CS8
LT1800IS8
1800
1800I
5 VS+
VOUT 1
–2
VS
+IN 3
S8 PART MARKING
ORDER PART
NUMBER
TOP VIEW
LT1800CS5
LT1800IS5
– +
TOP VIEW
4 –IN
S5 PART MARKING
S5 PACKAGE
5-LEAD PLASTIC SOT-23
LTRN
LTRP
TJMAX = 150°C, θJA = 250°C/ W
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
TA = 25°C, VS = 5V, 0V; VS = 3V, 0V; VCM = VOUT = half supply, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
VOS
Input Offset Voltage
VCM = 0V
VCM = 0V (SOT-23)
VCM = VS
VCM = VS (SOT-23)
∆VOS
Input Offset Shift
IB
Input Bias Current
IOS
Input Offset Current
VCM = 1V
VCM = VS
MIN
TYP
MAX
UNITS
75
300
0.5
0.7
350
750
3
3.5
µV
µV
mV
mV
VCM = 0V to VS – 1.5V
20
180
µV
VCM = 1V
VCM = VS
25
500
250
1500
nA
nA
25
25
200
200
nA
nA
Input Noise Voltage
0.1Hz to 10Hz
1.4
µVP-P
en
Input Noise Voltage Density
f = 10kHz
8.5
nV/√Hz
in
Input Noise Current Density
f = 10kHz
1
pA/√Hz
CIN
Input Capacitance
f = 100kHz
2
pF
AVOL
Large-Signal Voltage Gain
VS = 5V, VO = 0.5V to 4.5V, RL = 1k at VS/2
VS = 5V, VO = 1V to 4V, RL = 100Ω at VS/2
VS = 3V, VO = 0.5V to 2.5V, RL = 1k at VS/2
35
3.5
30
85
8
85
V/mV
V/mV
V/mV
CMRR
Common Mode Rejection Ratio
VS = 5V, VCM = 0V to 3.5V
VS = 3V, VCM = 0V to 1.5V
85
78
105
97
dB
dB
Input Common Mode Range
PSRR
Power Supply Rejection Ratio
Minimum Supply Voltage (Note 6)
0
VS = 2.5V to 10V, VCM = 0V
80
VS
97
2.3
V
dB
2.5
V
1800f
2
LT1800
ELECTRICAL CHARACTERISTICS
TA = 25°C, VS = 5V, 0V; VS = 3V, 0V; VCM = VOUT = half supply, unless otherwise noted.
SYMBOL PARAMETER
VOL
Output Voltage Swing Low (Note 7)
VOH
Output Voltage Swing High (Note 7)
ISC
Short-Circuit Current
IS
GBW
SR
FPBW
HD
tS
∆G
∆θ
Supply Current per Amplifier
Gain Bandwidth Product
Slew Rate
Full Power Bandwidth
Harmonic Distortion
Settling Time
Differential Gain (NTSC)
Differential Phase (NTSC)
CONDITIONS
No Load
ISINK = 5mA
ISINK = 20mA
No Load
ISOURCE = 5mA
ISOURCE = 20mA
VS = 5V
VS = 3V
MIN
20
20
Frequency = 2MHz
VS = 5V, AV = – 1, RL = 1k, VO = 4V
VS = 5V, VOUT = 4VP-P
VS = 5V, AV = 1, RL = 1k, VO = 2VP-P, fC = 500kHz
0.01%, VS = 5V, VSTEP = 2V, AV = 1, RL = 1k
VS = 5V, AV = + 2, RL = 150Ω
VS = 5V, AV = + 2, RL = 150Ω
40
13
TYP
12
80
225
16
120
450
45
40
1.6
80
25
2
–75
250
0.35
0.4
MAX
50
160
450
60
250
750
TYP
125
300
0.6
0.7
30
1.5
50
550
25
25
75
6
75
101
93
MAX
500
1250
3.5
3.75
275
5
300
1750
250
250
2
UNITS
mV
mV
mV
mV
mV
mV
mA
mA
mA
MHz
V/µs
MHz
dBc
ns
%
Deg
The ● denotes the specifications which apply over the temperature range of 0°C ≤ TA ≤ 70°C. VS = 5V, 0V;
VS = 3V, 0V; VCM = VOUT = half supply, unless otherwise noted.
SYMBOL PARAMETER
VOS
Input Offset Voltage
∆VOS
VOS TC
IB
Input Offset Shift
Input Offset Voltage Drift (Note 8)
Input Bias Current
IOS
Input Offset Current
AVOL
Large-Signal Voltage Gain
CMRR
Common Mode Rejection Ratio
VOL
Input Common Mode Range
Power Supply Rejection Ratio
Minimum Supply Voltage (Note 6)
Output Voltage Swing Low (Note 7)
VOH
Output Voltage Swing High (Note 7)
ISC
Short-Circuit Current
IS
GBW
SR
Supply Current per Amplifier
Gain Bandwidth Product
Slew Rate
PSRR
CONDITIONS
VCM = 0V
VCM = 0V (SOT-23)
VCM = VS
VCM = VS (SOT-23)
VCM = 0V to VS – 1.5V
MIN
●
●
●
●
●
●
VCM = 1V
VCM = VS – 0.2V
VCM = 1V
VCM = VS – 0.2V
VS = 5V, VO = 0.5V to 4.5V, RL = 1k at VS/2
VS = 5V, VO = 1V to 4V, RL = 100Ω at VS/2
VS = 3V, VO = 0.5V to 2.5V, RL = 1k at VS/2
VS = 5V, VCM = 0V to 3.5V
VS = 3V, VCM = 0V to 1.5V
●
●
●
●
●
●
●
●
●
●
VS = 2.5V to 10V, VCM = 0V
●
30
3
25
82
74
0
74
●
No Load
ISINK = 5mA
ISINK = 20mA
No Load
ISOURCE = 5mA
ISOURCE = 20mA
VS = 5V
VS = 3V
●
●
●
●
●
●
●
●
20
20
●
Frequency = 2MHz
VS = 5V, AV = – 1, RL = 1k, VO = 4VP-P
●
●
35
11
VS
91
2.3
14
100
300
25
150
600
40
30
2
75
22
2.5
60
200
550
80
300
950
2.75
UNITS
µV
µV
mV
mV
µV
µV/°C
nA
nA
nA
nA
V/mV
V/mV
V/mV
dB
dB
V
dB
V
mV
mV
mV
mV
mV
mV
mA
mA
mA
MHz
V/µs
1800f
3
LT1800
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the temperature range
of – 40°C ≤ TA ≤ 85°C. VS = 5V, 0V; VS = 3V, 0V; VCM = VOUT = half supply, unless otherwise noted. (Note 5)
SYMBOL PARAMETER
CONDITIONS
VOS
Input Offset Voltage
VCM = 0V
VCM = 0V (SOT-23)
VCM = VS
VCM = VS (SOT-23)
●
●
●
●
TYP
MAX
UNITS
175
400
0.75
0.9
700
2000
4
4
µV
µV
mV
mV
∆VOS
Input Offset Shift
VCM = 0V to VS – 1.5V
VOS TC
Input Offset Voltage Drift (Note 8)
●
30
300
●
1.5
5
IB
Input Bias Current
VCM = 1V
VCM = VS – 0.2V
●
●
50
600
400
2000
nA
nA
IOS
Input Offset Current
VCM = 1V
VCM = VS – 0.2V
●
●
25
25
300
300
nA
nA
AVOL
Large-Signal Voltage Gain
VS = 5V, VO = 0.5V to 4.5V, RL = 1k at VS/2
VS = 5V, VO = 1.5V to 3.5V, RL = 100Ω at VS/2
VS = 3V, VO = 0.5V to 2.5V, RL = 1k at VS/2
●
●
●
25
2.5
20
65
6
65
V/mV
V/mV
V/mV
CMRR
Common Mode Rejection Ratio
VS = 5V, VCM = 0V to 3.5V
VS = 3V, VCM = 0V to 1.5V
●
●
81
73
101
93
dB
dB
Input Common Mode Range
PSRR
Power Supply Rejection Ratio
VS = 2.5V to 10V, VCM = 0V
Minimum Supply Voltage (Note 6)
MIN
●
0
●
73
VS
90
µV
µV/°C
V
dB
●
2.3
2.5
V
VOL
Output Voltage Swing Low (Note 7)
No Load
ISINK = 5mA
ISINK = 10mA
●
●
●
15
105
170
70
210
400
mV
mV
mV
VOH
Output Voltage Swing High (Note 7)
No Load
ISOURCE = 5mA
ISOURCE = 10mA
●
●
●
25
150
300
90
350
700
mV
mV
mV
ISC
Short-Circuit Current
VS = 5V
VS = 3V
●
●
12.5
12.5
30
30
2.1
mA
mA
IS
Supply Current per Amplifier
GBW
Gain Bandwidth Product
Frequency = 2MHz
●
30
70
MHz
SR
Slew Rate
VS = 5V, AV = – 1, RL = 1k, VO = 4V
●
10
18
V/µs
MIN
●
3
mA
TA = 25°C, VS = ±5V, VCM = 0V, VOUT = 0V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
TYP
MAX
UNITS
VOS
Input Offset Voltage
150
400
0.7
1
500
1000
3.5
4.5
µV
µV
mV
mV
∆VOS
Input Offset Shift
30
475
µV
IB
Input Bias Current
25
400
350
1500
nA
nA
IOS
Input Offset Current
VCM = VS–
VCM = VS– (SOT-23)
VCM = VS+
VCM = VS+ (SOT-23)
VCM = VS– to VS+ – 1.5V
VCM = VS– + 1V
VCM = VS+
VCM = VS– + 1V
VCM = VS+
20
20
250
250
nA
nA
Input Noise Voltage
0.1Hz to 10Hz
1.4
µVP-P
en
Input Noise Voltage Density
f = 10kHz
8.5
nV/√Hz
in
Input Noise Current Density
f = 10kHz
1
pA/√Hz
CIN
Input Capacitance
f = 100kHz
2
pF
1800f
4
LT1800
ELECTRICAL CHARACTERISTICS
TA = 25°C, VS = ±5V, VCM = 0V, VOUT = 0V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
AVOL
Large-Signal Voltage Gain
VO = –4V to 4V, RL = 1k
VO = –2V to 2V, RL = 100Ω
25
2.5
70
7
CMRR
Common Mode Rejection Ratio
VCM = VS– to 3.5V
85
109
Input Common Mode Range
VS
–
MAX
UNITS
V/mV
V/mV
dB
VS
+
V
PSRR
Power Supply Rejection Ratio
VS+ = 2.5V to 10V, VS– = 0V
VOL
Output Voltage Swing Low (Note 7)
No Load
ISINK = 5mA
ISINK = 20mA
15
85
225
60
170
450
mV
mV
mV
VOH
Output Voltage Swing High (Note 7)
No Load
ISOURCE = 5mA
ISOURCE = 20mA
17
130
450
70
260
750
mV
mV
mV
ISC
Short-Circuit Current
IS
Supply Current per Amplifier
2.75
mA
GBW
Gain Bandwidth Product
Frequency = 2MHz
SR
Slew Rate
AV = – 1, RL = 1k, VO = ±4V, Measured at VO = ±2V
23
V/µs
FPBW
Full Power Bandwidth
VO = 8VP-P
0.9
MHz
HD
Harmonic Distortion
AV = 1, RL = 1k, VO = 2VP-P, fC = 500kHz
–75
dBc
tS
Settling Time
0.01%, VSTEP = 5V, AV = 1V, RL = 1k
300
ns
∆G
Differential Gain (NTSC)
AV = + 2, RL = 150Ω
0.35
%
∆θ
Differential Phase (NTSC)
AV = + 2, RL = 150Ω
0.2
Deg
80
30
97
dB
50
1.8
mA
70
MHz
The ● denotes the specifications which apply over the temperature range of 0°C ≤ TA ≤ 70°C. VS = ±5V, VCM = 0V, VOUT = 0V, unless
otherwise noted.
SYMBOL PARAMETER
CONDITIONS
VOS
Input Offset Voltage
VCM = VS–
VCM = VS– (SOT-23)
VCM = VS+
VCM = VS+ (SOT-23)
●
●
●
●
MIN
TYP
MAX
UNITS
200
450
0.75
1
800
1500
4
5
µV
µV
mV
mV
∆VOS
Input Offset Shift
VCM = VS– to VS+ – 1.5V
VOS TC
Input Offset Voltage Drift (Note 8)
●
45
675
●
1.5
5
IB
Input Bias Current
VCM = VS– + 1V
VCM = VS+ – 0.2V
●
●
30
450
400
1750
nA
nA
IOS
Input Offset Current
VCM = VS– + 1V
VCM = VS+ – 0.2V
●
●
25
25
300
300
nA
nA
AVOL
Large-Signal Voltage Gain
VO = –4V to 4V, RL = 1k
VO = –2V to 2V, RL = 100Ω
●
●
CMRR
Common Mode Rejection Ratio
VCM = VS– to 3.5V
Input Common Mode Range
= 2.5V to 10V, VS–
20
2
55
5
●
82
105
●
VS–
●
74
µV
µV/°C
V/mV
V/mV
dB
VS+
V
PSRR
Power Supply Rejection Ratio
VS+
VOL
Output Voltage Swing Low (Note 7)
No Load
ISINK = 5mA
ISINK = 20mA
●
●
●
17
105
250
70
210
575
mV
mV
mV
VOH
Output Voltage Swing High (Note 7)
No Load
ISOURCE = 5mA
ISOURCE = 20mA
●
●
●
25
150
600
90
310
975
mV
mV
mV
= 0V
91
dB
1800f
5
LT1800
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the temperature range
of 0°C ≤ TA ≤ 70°C. VS = ±5V, VCM = 0V, VOUT = 0V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
25
45
ISC
Short-Circuit Current
●
IS
Supply Current per Amplifier
●
2.4
MAX
UNITS
mA
3.5
mA
GBW
Gain Bandwidth Product
Frequency = 2MHz
●
70
MHz
SR
Slew Rate
AV = – 1, RL = 1k, VO = ±4V, Measured at VO = ±2V
●
20
V/µs
The ● denotes the specifications which apply over the temperature range of – 40°C ≤ TA ≤ 85°C. VS = ±5V, VCM = 0V, VOUT = 0V,
unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
TYP
MAX
UNITS
VOS
Input Offset Voltage
VCM = VS–
VCM = VS– (SOT-23)
VCM = VS+
VCM = VS+ (SOT-23)
●
●
●
●
MIN
350
500
0.75
1
900
2250
4.5
5.5
µV
µV
mV
mV
∆VOS
Input Offset Shift
VCM = VS– to VS+ – 1.5V
●
50
750
µV
VOS TC
Input Offset Voltage Drift (Note 8)
●
1.5
5
IB
Input Bias Current
VCM = VS– + 1V
VCM = VS+ – 0.2V
●
●
50
450
450
2000
nA
nA
IOS
Input Offset Current
VCM = VS– + 1V
VCM = VS+ – 0.2V
●
●
25
25
350
350
nA
nA
AVOL
Large-Signal Voltage Gain
VO = –4V to 4V, RL = 1k
VO = –1V to 1V, RL = 100Ω
●
●
16
2
55
5
CMRR
Common Mode Rejection Ratio
VCM = VS– to 3.5V
●
81
104
–
Input Common Mode Range
µV/°C
V/mV
V/mV
dB
VS+
●
VS
PSRR
Power Supply Rejection Ratio
VS+ = 2.5V to 10V, VS– = 0V
●
73
VOL
Output Voltage Swing Low (Note 7)
No Load
ISINK = 5mA
ISINK = 10mA
●
●
●
15
105
170
80
220
400
mV
mV
mV
VOH
Output Voltage Swing High (Note 7)
No Load
ISOURCE = 5mA
ISOURCE = 10mA
●
●
●
25
150
300
100
350
700
mV
mV
mV
ISC
Short-Circuit Current
●
IS
Supply Current per Amplifier
●
2.6
4
mA
12.5
90
V
dB
30
mA
GBW
Gain Bandwidth Product
Frequency = 2MHz
●
65
MHz
SR
Slew Rate
AV = – 1, RL = 1k, VO = ±4V, Measured at VO = ±2V
●
15
V/µs
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: The inputs are protected by back-to-back diodes and by ESD
diodes to the supply rails. If the differential input voltage exceeds 1.4V or
either input goes outside the rails, the input current should be limited to
less than 10mA.
Note 3: A heat sink may be required to keep the junction temperature
below the absolute maximum rating when the output is shorted
indefinitely.
Note 4: The LT1800C/LT1800I are guaranteed functional over the
temperature range of – 40°C to 85°C.
Note 5: The LT1800C is guaranteed to meet specified performance from
0°C to 70°C. The LT1800C is designed, characterized and expected to
meet specified performance from –40°C to 85°C but is not tested or QA
sampled at these temperatures. The LT1800I is guaranteed to meet
specified performance from –40°C to 85°C.
Note 6: Minimum supply voltage is guaranteed by power supply rejection
ratio test.
Note 7: Output voltage swings are measured between the output and
power supply rails.
Note 8: This parameter is not 100% tested.
1800f
6
LT1800
U W
TYPICAL PERFOR A CE CHARACTERISTICS
VOS Distribution, VCM = 0V
(SO-8, PNP Stage)
45
VS = 5V, 0V
VCM = 0V
40
PERCENT OF UNITS (%)
PERCENT OF UNITS (%)
35
30
25
20
15
10
5
40
VS = 5V, 0V
VCM = 5V
40
35
35
30
25
20
15
10
20
15
10
5
–150
–50
50
150
INPUT OFFSET VOLTAGE (µV)
0
–2000
250
–1200
–400
400
1200
INPUT OFFSET VOLTAGE (µV)
1800 G01
500
4
TA = –55°C
SUPPLY CURRENT (mA)
400
25
20
15
10
TA = 25°C
2
VS = 5V, 0V
TYPICAL PART
300
TA = 125°C
3
1250
Offset Voltage
vs Input Common Mode Voltage
Supply Current vs Supply Voltage
VS = 5V, 0V
VCM = 5V
30
750
–750
–250
250
INPUT OFFSET VOLTAGE (µV)
1800 G38
OFFSET VOLTAGE (µV)
35
0
–1250
2000
1800 G02
VOS Distribution, VCM = 5V
(SOT-23, NPN Stage)
PERCENT OF UNITS (%)
25
5
0
–250
VS = 5V, 0V
VCM = 0V
30
PERCENT OF UNITS (%)
45
VOS Distribution, VCM = 0V
(SOT-23, PNP Stage)
VOS Distribution, VCM = 5V
(SO-8, NPN Stage)
TA = –55°C
200
TA = 25°C
100
0
–100
–200
1
TA = 125°C
–300
5
–400
0
–2500
–1500 –500
500
1500
INPUT OFFSET VOLTAGE (µV)
0
2500
–500
0
1
2
3 4 5 6 7 8 9 10 11 12
TOTAL SUPPLY VOLTAGE (V)
1800 G39
Input Bias Current
vs Temperature
0.6
0.4
0.2
0
–0.2
–0.4
0.5
0.3
0.2
0
–0.8
–1
0
2
3
4
5
1
INPUT COMMON MODE VOLTAGE (V)
6
1800 G05
NPN ACTIVE
VS = 5V, 0V
VCM = 5V
0.4
0.1
–0.6
–1.0
10
0.7
INPUT BIAS (µA)
INPUT BIAS CURRENT (µA)
0.6
Output Saturation Voltage
vs Load Current (Output Low)
0.8
VS = 5V, 0V
TA = 25°C
TA = 125°C
TA = –55°C
PNP ACTIVE
VS = 5V, 0V
VCM = 1V
–0.1
20
–60 –40 –20 0
40
TEMPERATURE (°C)
5
1800 G04
OUTPUT SATURATION VOLTAGE (V)
1.0
1
3
4
2
INPUT COMMON MODE VOLTAGE (V)
1800 G03
Input Bias Current
vs Common Mode Voltage
0.8
0
60
80
1800 G06
VS = 5V, 0V
1
0.1
TA = 125°C
0.01
TA = –55°C
0.001
0.01
TA = 25°C
1
10
0.1
LOAD CURRENT (mA)
100
1800 G07
1800f
7
LT1800
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TYPICAL PERFOR A CE CHARACTERISTICS
Output Saturation Voltage
vs Load Current (Output High)
1
0.1
TA = 125°C
0.01
TA = –55°C
0.001
0.01
TA = 25°C
OUTPUT SHORT-CIRCUIT CURRENT (mA)
0.6
VS = 5V, 0V
CHANGE IN OFFSET VOLTAGE (mV)
TA = –55°C
0.4
0.2
TA = 25°C
0
–0.2
TA = 125°C
–0.4
–0.6
1
10
0.1
LOAD CURRENT (mA)
0
100
1.5
2 2.5 3 3.5 4 4.5
TOTAL SUPPLY VOLTAGE (V)
1800 G08
CHANGE IN OFFSET VOLTAGE (µV)
CHANGE IN OFFSET VOLTAGE (µV)
1200
800
RL = 1k
0
–400
RL = 100Ω
–1200
VS = 5V, 0V
RL TO GND
1600
1200
800
400
RL = 1k
0
–400
–800
RL = 100Ω
–1200
0
0.5
1
1.5 2 2.5 3 3.5 4
OUTPUT VOLTAGE (V)
1800 G11
–400
–800
1.0
100
–0.5 TA = 25°C
TA = 125°C
–1.0
4.5
5
60
70
VS = ±1.5V
1800 G14
80 100 120
60
TIME AFTER POWER-UP (SECONDS)
20
40
40
140
1800 G15
NPN ACTIVE
VCM = 4.25V
30
20
10
TYPICAL PART
0
VS = 5V, 0V
50
VS = ±2.5V
60
5
Input Noise Voltage vs Frequency
90
80
4
1800 G13
VS = ±5V
40
45
–5 –4 –3 –2 –1 0 1 2 3
OUTPUT VOLTAGE (V)
60
50
–1.5
–2.0
15 30
–60 –45 –30 –15 0
OUTPUT CURRENT (mA)
RL = 100Ω
–1200
NOISE VOLTAGE (nV/√Hz)
110
OFFSET VOLTAGE (µV)
CHANGE IN OFFSET VOLTAGE (mV)
VS = ±5V
1.5
5
RL = 1k
0
120
0
4
2.5
4.5
3.5
3
POWER SUPPLY VOLTAGE (±V)
VS = ±5V
RL TO GND
Warm-Up Drift vs Time
(LT1800S8)
TA = –55°C
2
1800 G12
Offset Voltage vs Output Current
0.5
TA = 25°C
400
–1600
2.0
TA = 125°C
800
–2000
3
SOURCING
1200
–1600
2.5
TA = –55°C
1600
–2000
1.5
2
1
OUTPUT VOLTAGE (V)
SINKING
VS = 5V, 0V
2000
–1600
0.5
TA = –55°C
1800 G10
–2000
0
TA = 125°C
Open-Loop Gain
2000
VS = 3V, 0V
RL TO GND
TA = 25°C
1.5
5.5
Open-Loop Gain
1600
–800
70
60
50
40
30
20
10
0
–10
–20
–30
–40
–50
–60
–70
1800 G09
Open-Loop Gain
2000
400
5
CHANGE IN OFFSET VOLTAGE (µV)
OUTPUT SATURATION VOLTAGE (V)
10
Output Short-Circuit Current
vs Power Supply Voltage
Minimum Supply Voltage
PNP ACTIVE
VCM = 2.5V
0
0.01
0.1
1
10
FREQUENCY (kHz)
100
1800 G16
1800f
8
LT1800
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TYPICAL PERFOR A CE CHARACTERISTICS
0.1Hz to 10Hz Output Voltage
Noise
Input Current Noise vs Frequency
3.0
2000
VS = 5V, 0V
PNP ACTIVE
VCM = 2.5V
1.5
1.0
NPN ACTIVE
VCM = 4.25V
1000
GAIN BANDWIDTH (MHz)
OUTPUT NOISE VOLTAGE (nV)
2.0
0
0.01
0
–1000
1
10
FREQUENCY (kHz)
100
60
PHASE MARGIN
50
40
2
3
4 5 6 7
TIME (SECONDS)
8
50
40
SLEW RATE (V/µs)
60
PHASE MARGIN
VS = ±5V
30
AV = –1
RF = RG = 1k
RL = 1k
5 25 45 65
TEMPERATURE (°C)
1800 G19
VS = ±2.5V
70
100
60
80
PHASE
VS = ±5V
25
20
50
60
40
40
20
30
GAIN
20
10
–20
0
–40
–60
5 25 45 65 85 105 125
TEMPERATURE (°C)
–30
0.01
0.1
Gain vs Frequency (AV = 1)
Gain vs Frequency (AV = 2)
6
OUTPUT IMPEDANCE (Ω)
GAIN (dB)
9
6
VS = ±2.5V
3
VS = ±5V
–6
0
–9
–3
100
300
1800 G23
–6
0.1
VS = ±2.5V
100
12
VS = ±5V
–100
100 300
Output Impedance vs Frequency
600
RL = 1k
15 CL = 10pF
AV = 2
RL = 1k
9 CL = 10pF
AV = 1
–3
1
10
FREQUENCY (MHz)
1800 G22
18
VS = ±2.5V
–80
1800 G21
12
1
10
FREQUENCY (MHz)
VS = ±2.5V
VS = ±5V
–20
10
–55 –35 –15
1800 G20
3
0
–10
15
10
85 105 125
10
Gain and Phase vs Frequency
20
–55 –35 –15
9
PHASE (DEG)
60
PHASE MARGIN (DEG)
GBW PRODUCT
VS = ±5V
PHASE MARGIN
VS = ±2.5V
2 3 4 5 6 7 8
TOTAL SUPPLY VOLTAGE (V)
1
0
OPEN-LOOP GAIN (dB)
30
80
50
10
Slew Rate vs Temperature
GBW PRODUCT
VS = ±2.5V
70
9
1800 G18
35
90
GAIN BANDWIDTH (MHz)
60
20
1
0
100
–12
0.1
70
–2000
0.1
Gain Bandwidth and Phase
Margin vs Temperature
0
GAIN BANDWIDTH
PRODUCT
80
30
1800 G17
GAIN (dB)
TA = 25°C
PHASE MARGIN (DEG)
NOISE CURRENT (pA/√Hz)
100
VS = 5V, 0V
90
2.5
0.5
Gain Bandwidth and Phase
Margin vs Supply Voltage
10
AV = 10
AV = 1
1
AV = 2
0.1
0.01
1
10
FREQUENCY (MHz)
100
300
1800 G24
0.001
0.1
1
10
FREQUENCY (MHz)
100
500
1800 G25
1800f
9
LT1800
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TYPICAL PERFOR A CE CHARACTERISTICS
Common Mode Rejection Ratio
vs Frequency
90
100
80
60
40
20
0.1
1
10
FREQUENCY (MHz)
NEGATIVE
SUPPLY
40
30
20
10
–50
40
35
ROS = 10Ω
20
ROS = 20Ω
15
10
DISTORTION (dBc)
OVERSHOOT (%)
45
25
ROS = RL = 50Ω
0
100
1000
CAPACITIVE LOAD (pF)
10
20
ROS = RL = 50Ω
5
0
0.01
0.1
1
FREQUENCY (MHz)
10
10000
100
1000
CAPACITIVE LOAD (pF)
10
100
10000
1800 G28
Distortion vs Frequency
–40
VS = 5V, 0V
AV = 1
VOUT = 2VP-P
–60
–50
RL = 150Ω, 2ND
–70
RL = 1k, 2ND
RL = 150Ω, 3RD
–80
–90
–100
5
ROS = 20Ω
25
Distortion vs Frequency
–40
30
30
1800 G27
VS = 5V, 0V
AV = 2
50
35
10
0
Series Output Resistor
vs Capacitive Load
55
ROS = 10Ω
40
15
1800 G26
60
45
POSITIVE
SUPPLY
50
–10
0.001
100
50
70
60
VS = 5V, 0V
AV = 1
55
0.1
1
FREQUENCY (MHz)
1800 G29
VS = 5V, 0V
AV = 2
VOUT = 2VP-P
–60
RL = 150Ω, 2ND
RL = 1k,
2ND
RL = 150Ω,
3RD
–70
–80
–90
–100
RL = 1k, 3RD
–110
0.01
DISTORTION (dBc)
0
0.01
60
VS = 5V, 0V
TA = 25°C
80
OVERSHOOT (%)
VS = 5V, 0V
POWER SUPPLY REJECTION RATIO (dB)
COMMON MODE REJECTION RATIO (dB)
120
Series Output Resistor
vs Capacitive Load
Power Supply Rejection Ratio
vs Frequency
RL = 1k, 3RD
10
–110
0.01
0.1
1
FREQUENCY (MHz)
1800 G30
Maximum Undistorted Output
Signal vs Frequency
10
1800 G31
5V Small-Signal Response
5V Large-Signal Response
OUTPUT VOLTAGE SWING (VP-P)
4.6
4.5
4.4
50mV/DIV
AV = 2
1V/DIV
4.3
0V
AV = –1
4.2
0V
4.1
4.0
VS = 5V, 0V
RL = 1k
3.9
1k
10k
100k
1M
FREQUENCY (Hz)
10M
VS = 5V, 0V
AV = 1
RL = 1k
100ns/DIV
1800 G33
VS = 5V, 0V
AV = 1
RL = 1k
50ns/DIV
1800 G34
1800 G32
1800f
10
LT1800
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TYPICAL PERFOR A CE CHARACTERISTICS
±5V Small-Signal Response
±5V Large-Signal Response
Output Overdriven Recovery
2V/DIV
50mV/DIV
VIN
1V/DIV
0V
0V
0V
VOUT
2V/DIV
0V
200ns/DIV
VS = ±5V
AV = 1
RL = 1k
1800 G35
50ns/DIV
VS = 5V, 0V
AV = 2
RL = 1k
1800 G36
100ns/DIV
1800 G37
U
VS = ±5V
AV = 1
RL = 1k
W
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APPLICATIO S I FOR ATIO
Circuit Description
the positive supply. As the input voltage moves closer
toward the positive supply, the transistor Q5 will steer the
tail current I1 to the current mirror Q6/Q7, activating the
NPN differential pair and the PNP pair becomes inactive
for the rest of the input common mode range up to the
positive supply. Also at the input stage, devices Q17 to
Q19 act to cancel the bias current of the PNP input pair.
When Q1-Q2 are active, the current in Q16 is controlled to
be the same as the current in Q1-Q2, thus the base current
The LT1800 has an input and output signal range that
covers from the negative power supply to the positive
power supply. Figure 1 depicts a simplified schematic of
the amplifier. The input stage is comprised of two differential amplifiers, a PNP stage Q1/Q2 and an NPN stage Q3/
Q4 that are active over the different ranges of common
mode input voltage. The PNP differential pair is active
between the negative supply to approximately 1.2V below
V+
R3
V+
+
R5
V–
ESDD1
I2
R4
+
D1
ESDD2
Q12
Q11
I1
Q13
+IN
D6
D5
D8
D2
Q5
OUT
D3
BUFFER
AND
OUTPUT BIAS
Q10
V+
D4
Q9
Q16
Q17
Q18
V–
Q1 Q2
ESDD3
V–
I3
CC
Q4 Q3
ESDD4
+
VBIAS
D7
–IN
Q15
C2
Q8
C1
Q19
Q7
Q14
Q6
R1
V–
R2
1800 F01
Figure 1. LT1800 Simplified Schematic Diagram
1800f
11
LT1800
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APPLICATIO S I FOR ATIO
of Q16 is nominally equal to the base current of the input
devices. The base current of Q16 is then mirrored by
devices Q17-Q19 to cancel the base current of the input
devices Q1-Q2.
A pair of complementary common emitter stages Q14/Q15
that enable the output to swing from rail to rail constructs
the output stage. The capacitors C2 and C3 form the local
feedback loops that lower the output impedance at high
frequency. These devices are fabricated on Linear
Technology’s proprietary high-speed complementary bipolar process.
Power Dissipation
The LT1800 amplifier is offered in a small package, SOT-23,
which has a thermal resistance of 250°C/W, θJA. So there
is a need to ensure that the die’s junction temperature
should not exceed 150°C. Junction temperature TJ is
calculated from the ambient temperature TA, power dissipation PD and thermal resistance θJA:
TJ = TA + (PD • θJA)
The power dissipation in the IC is the function of the supply
voltage, output voltage and the load resistance. For a given
supply voltage, the worst-case power dissipation PDMAX
occurs at the maximum supply current and the output
voltage is at half of either supply voltage (or the maximum
swing is less than 1/2 supply voltage). PDMAX is given by:
PDMAX = (VS • ISMAX) + (VS/2)2/RL
Example: An LT1800 in a SOT-23 package operating on
±5V supplies and driving a 50Ω load, the worst-case
power dissipation is given by:
PDMAX = (10 • 4mA) + (2.5)2/50 = 0.04 + 0.125 = 0.165W
The maximum ambient temperature that the part is allowed to operate is:
TA = TJ – (PDMAX • 250°C/W)
= 150°C – (0.165W • 250°C/W) = 108°C
Input Offset Voltage
The offset voltage will change depending upon which input
stage is active. The PNP input stage is active from the
negative supply rail to 1.2V of the positive supply rail, then
the NPN input stage is activated for the remaining input
range up to the positive supply rail during which the PNP
stage remains inactive. The offset voltage is typically less
than 75µV in the range that the PNP input stage is active.
Input Bias Current
The LT1800 employs a patent-pending technique to trim
the input bias current to less than 250nA for the input
common mode voltage of 0.2V above negative supply rail
to 1.2V of the positive rail. The low input offset voltage
and low input bias current of the LT1800 provide the
precision performance especially for high source impedance applications.
Output
The LT1800 can deliver a large output current, so the
short-circuit current limit is set around 50mA to prevent
damage to the device. Attention must be paid to keep the
junction temperature of the IC below the absolute maximum rating of 150°C (refer to the Power Dissipation
section) when the output is continuously short circuited.
The output of the amplifier has reverse-biased diodes
connected to each supply. If the output is forced beyond
either supply, unlimited current will flow through these
diodes. If the current is transient and limited to several
hundred mA, and the total supply voltage is less than
12.6V, the absolute maximum rating, no damage will
occur to the device.
Overdrive Protection
When the input voltage exceeds the power supplies, two
pairs of crossing diodes D1 to D4 will prevent the output
from reversing polarity. If the input voltage exceeds either
power supply by 700mV, diode D1/D2 or D3/D4 will turn
on to keep the output at the proper polarity. For the phase
reversal protection to perform properly, the input current
must be limited to less than 10mA. If the amplifier is
severely overdriven, an external resistor should be used to
limit the overdrive current.
The LT1800’s input stages are also protected against a
large differential input voltage of 1.4V or higher by a pair
of back-back diodes D5/D8 to prevent the emitter-base
breakdown of the input transistors. The current in these
1800f
12
LT1800
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APPLICATIO S I FOR ATIO
diodes should be limited to less than 10mA when they are
active. The worst-case differential input voltage usually
occurs when the input is driven while the output is shorted
to ground in a unity gain configuration. In addition, the
amplifier is protected against ESD strikes up to 3kV on all
pins by a pair of protection diodes on each pin that are
connected to the power supplies as shown in Figure1.
Capacitive Load
The LT1800 is optimized for high bandwidth, low power
and precision applications. It can drive a capacitive load of
about 75pF in a unity gain configuration, and more for
higher gain. When driving a larger capacitive load, a
resistor of 10Ω to 50Ω should be connected between the
output and the capacitive load to avoid ringing or oscillation. The feedback should still be taken from the output so
that the resistor will isolate the capacitive load to ensure
stability. Graphs on capacitive loads indicate the transient
response of the amplifier when driving capacitive load with
a specified series resistor.
Feedback Components
When feedback resistors are used to set up gain, care must
be taken to ensure that the pole formed by the feedback
resistors and the total capacitance at the inverting input
does not degrade stability. For instance, the LT1800 in a
noninverting gain of 2, set up with two 5k resistors and a
capacitance of 5pF (part plus PC board) will probably ring
in transient response. The pole is formed at 12.7MHz that
will reduce phase margin by 32 degrees when the crossover frequency of the amplifier is around 20MHz. A capacitor of 5pF or higher connected across the feedback resistor will eliminate any ringing or oscillation.
U
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APPLICATIO S I FOR ATIO
Single Supply 1A Laser Driver Amplifier
Fast 1A Current Sense Amplifier
The circuit in the front page of this data sheet shows the
LT1800 used in a 1A laser driver application. One of the
reasons the LT1800 is well suited to this control task is that
its 2.3V operation ensures that it will be awake during
power-up and operated before the circuit can otherwise
cause significant current to flow in the 2.1V threshold laser
diode. Driving the noninverting input of the LT1800 to a
voltage VIN will control the turning on of the high current
NPN transistor, FMMT619 and the laser diode. A current
equal to VIN/R1 flows through the laser diode. The LT1800
low offset voltage and low input bias current allows it to
control the current that flows through the laser diode
precisely. The overall circuit is a 1A per Volt V-to-I converter. Frequency compensation components R2 and C1
are selected for fast but zero-overshoot time domain
response to avoid overcurrent conditions in the laser. The
time domain response of this circuit, measured at R1 and
given a 500mV 230ns input pulse, is also shown in the
graphic on the front page. While the circuit is capable of 1A
operation, the laser diode and the transistor are thermally
limited due to power dissipation, so they must be operated
at low duty cycles.
A simple, fast current sense amplifier in Figure 2 is suitable
for quickly responding to out-of-range currents. The circuit amplifies the voltage across the 0.1Ω sense resistor
by a gain of 20, resulting in a conversion gain of 2V/A. The
–3dB bandwidth of the circuit is 4MHz, and the uncertainty
due to VOS and IB is less than 4mA. The minimum output
voltage is 60mV, corresponding to 30mA. The large-signal
response of the circuit is shown in Figure 3.
IL
0A TO 1A
52.3Ω
3V
+
–
0.1Ω
52.3Ω
VOUT
0V TO 2V
LT1800
1k
1800 F02
VOUT = 2 • IL
f–3dB = 4MHz
UNCERTAINTY DUE TO VOS, IB < 4mA
Figure 2. Fast 1A Current Sense
1800f
13
LT1800
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TYPICAL APPLICATIO S
Single 3V Supply, 1MHz, 4th Order Butterworth Filter
500mV/DIV
0V
VS = 3V
50ns/DIV
1800 F03
Figure 3. Current Sense Amplifier Large-Signal Response
909Ω
VIN
909Ω
The circuit shown in Figure 4 makes use of the low voltage
operation and the wide bandwidth of the LT1800 to create
a DC accurate 1MHz 4th order lowpass filter powered from
a 3V supply. The amplifiers are configured in the inverting
mode for the lowest distortion and the output can swing
rail-to-rail for maximum dynamic range. Figure 5 displays
the frequency response of the filter. Stopband attenuation
is greater than 100dB at 50MHz. With a 2.25VP-P, 250kHz
input signal, the filter has harmonic distortion products of
less than –85dBc. Worst case output offset voltage is less
than 6mV.
47pF
–
2.67k
1.1k
1.1k
220pF
+
22pF
3V
–
2.21k
LT1800
470pF
+
LT1800
VOUT
VS/2
1800 F04
Figure 4. 3V, 1MHz, 4th Order Butterworth Filter
0
GAIN (dB)
–20
–40
–60
–80
–100
–120
1k
10k
100k
1M
FREQUENCY (Hz)
10M
100M
1800 F05
Figure 5. Frequency Response of Filter
1800f
14
LT1800
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PACKAGE DESCRIPTIO
S6 Package
6-Lead Plastic TSOT-23
(Reference LTC DWG # 05-08-1636)
0.62
MAX
0.95
REF
2.90 BSC
(NOTE 4)
1.22 REF
1.4 MIN
3.85 MAX 2.62 REF
2.80 BSC
1.50 – 1.75
(NOTE 4)
PIN ONE
RECOMMENDED SOLDER PAD LAYOUT
PER IPC CALCULATOR
0.30 – 0.45 TYP
5 PLCS (NOTE 3)
0.95 BSC
0.80 – 0.90
0.20 BSC
0.01 – 0.10
1.00 MAX
DATUM ‘A’
0.30 – 0.50 REF
1.90 BSC
0.09 – 0.20
(NOTE 3)
NOTE:
1. DIMENSIONS ARE IN MILLIMETERS
2. DRAWING NOT TO SCALE
3. DIMENSIONS ARE INCLUSIVE OF PLATING
4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR
5. MOLD FLASH SHALL NOT EXCEED 0.254mm
6. JEDEC PACKAGE REFERENCE IS MO-193
S5 TSOT-23 0302
S8 Package
8-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610)
0.189 – 0.197*
(4.801 – 5.004)
0.010 – 0.020
× 45°
(0.254 – 0.508)
0.008 – 0.010
(0.203 – 0.254)
0.053 – 0.069
(1.346 – 1.752)
0°– 8° TYP
0.016 – 0.050
(0.406 – 1.270)
0.014 – 0.019
(0.355 – 0.483)
TYP
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
8
7
6
5
0.004 – 0.010
(0.101 – 0.254)
0.050
(1.270)
BSC
0.150 – 0.157**
(3.810 – 3.988)
0.228 – 0.244
(5.791 – 6.197)
SO8 1298
1
2
3
4
1800f
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
15
LT1800
U
TYPICAL APPLICATIO
Low Power High Voltage Amplifier
Certain materials used in optical applications have characteristics that change due to the presence and strength of
a DC electric field. The voltage applied across these
materials should be precisely controlled to maintain desired properties, sometimes as high as 100’s of volts. The
materials are not conductive and represent a capacitive
load.
The circuit of Figure 6 shows the LT1800 used in an
amplifier capable of a 250V output swing and providing
130V
5V
4.99k
10k
1k
Q5
Q6
0.1µF
5V
Q2
Q1
+
R2
2k
precise DC output voltage. When no signal is present, the
op amp output sits at about mid-supply. Transistors Q1
and Q3 create bias voltages for Q2 and Q4, which are
forced into a low quiescent current by degeneration resistors R4 and R5. When a transient signal arrives at VIN, the
op amp output moves and causes the current in Q2 or Q4
to change depending on the signal polarity. The current,
limited by the clipping of the LT1800 output and the 3kΩ
of total emitter degeneration, is mirrored to the output
devices to drive the capacitive load. The LT1800 output
then returns to near mid-supply, providing the precise DC
output voltage to the load. The attention to limit the current
of the output devices minimizes power dissipation thus
allowing for dense layout, and inherits better reliability.
Figure 7 shows the time domain response of the amplifier
providing a 200V output swing into a 100pF load.
5V
R4
2k
R6
2k
R5
2k
R7
2k
VOUT
LT1800
–
Q3
MATERIAL UNDER
ELECTRIC FIELD
100pF
VIN
2V/DIV
Q4
VIN
R1
2k
C2
8pF
150V
C1
39pF
R3
200k
10k
Q7
Q8
1k
4.99k
–130V
AV = VOUT/VIN = –100
±130V SUPPLY IQ = 130µA
OUTPUT SWING = ±128.8V
OUTPUT OFFSET ≅ 20mV
OUTPUT SHORT-CIRCUIT CURRENT ≅ 3mA
10% TO 90% RISE TIME ≅ 8µs, 200V OUTPUT STEP
SMALL-SIGNAL BANDWIDTH ≅ 150kHz
Q1, Q2, Q7, Q8: ON SEMI MPSA42
Q3, Q4, Q5, Q6: ON SEMI MPSA92
VOUT
50V/DIV
10µs/DIV
1800 F07
1800 F06
Figure 6. Low Power, High Voltage Amplifier
Figure 7. Large-Signal Time Domain
Response of the Amplifier
RELATED PARTS
PART NUMBER
LT1399
LT1498/LT1499
LT1630/LT1631
DESCRIPTION
Triple 300MHz Current Feedback Amplifier
Dual/Quad 10MHz, 6Vµs Rail-to-Rail Input and Output C-LoadTM
Op Amps
Dual/Quad 30MHz, 10V/µs Rail-to-Rail Input and Output Op Amps
LT1801/LT1802
LT1806/LT1807
80MHz, 25V/µs Low Power Rail-to-Rail Input/Output Precision Op Amps
Single/Dual 325MHz, 140V/µs Rail-to-Rail Input and Output Op Amps
LT1809/LT1810
Single/Dual 180MHz Rail-to-Rail Input/Output Op Amps
COMMENTS
0.1dB Gain Flatness to 150MHz, Shutdown
High DC Accuracy, 475µV VOS(MAX), 4µV/°C Max Drift,
Max Supply Current 2.2mA per Amp
High DC Accuracy, 525µV VOS(MAX), 70mA Output Current,
Max Supply Current 4.4mA per Amplifier
Dual/Quad Version of the LT1800
High DC Accuracy, 550µV VOS(MAX), Low Noise 3.5nV/√Hz,
Low Distortion –80dB at 5MHz, Power-Down (LT1806)
350V/µs Slew Rate, Low Distortion –90dBc at 5MHz,
Power-Down (LT1809)
C-Load is a trademark of Linear Technology Corporation.
1800f
16
Linear Technology Corporation
LT/TP 0402 2K • PRINTED IN USA
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507
●
www.linear.com
 LINEAR TECHNOLOGY CORPORATION 2001