LT1800CS5#TRM [Linear]
LT1800 - 80MHz, 25V/µs Low Power Rail-to-Rail Input and Output Precision Op Amp; Package: SOT; Pins: 5; Temperature Range: 0°C to 70°C;型号: | LT1800CS5#TRM |
厂家: | Linear |
描述: | LT1800 - 80MHz, 25V/µs Low Power Rail-to-Rail Input and Output Precision Op Amp; Package: SOT; Pins: 5; Temperature Range: 0°C to 70°C 运算放大器 放大器电路 光电二极管 |
文件: | 总16页 (文件大小:267K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
LT1800
80MHz, 25V/µs Low Power
Rail-to-Rail Input and Output
Precision Op Amp
U
FEATURES
DESCRIPTIO
The LT®1800 is a low power, high speed rail-to-rail input
and output operational amplifier with excellent DC perfor-
mance.TheLT1800featuresreducedsupplycurrent,lower
input offset voltage, lower input bias current and higher
DC gain than other devices with comparable bandwidth.
■
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
The LT1800 has an input range that includes both supply
rails and an output that swings within 20mV of either sup-
plyrailtomaximizethesignaldynamicrangeinlowsupply
applications.
■
Low Voltage Noise: 8.5nV/√Hz
■
Slew Rate: 25V/µs
■
Common Mode Rejection: 105dB
■
Power Supply Rejection: 97dB
■
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.
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
The LT1800 is available in the 8-pin SO package with the
standard op amp pinout and in the 5-pin SOT-23 package.
FordualandquadversionsoftheLT1800,seetheLT1801/
LT1802 data sheet. The LT1800 can be used as a plug-in
replacement for many op amps to improve input/output
range and performance.
U
APPLICATIO S
■
Low Voltage, High Frequency Signal Processing
Driving A/D Converters
Rail-to-Rail Buffer Amplifiers
■
■
■
Active Filters
, LTC and LT are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
■
Video Line Driver
U
TYPICAL APPLICATIO
Laser Driver Amplifier
500mA Pulse Response
Single Supply 1A Laser Driver Amplifier
5V
+
V
IN
R3
10
DO NOT FLOAT
Q1
ZETEX
FMMT619
Ω
100mA/DIV
LT1800
–
C1
39pF
IR LASER
INFINEON
SFH495
R2
330
R1
Ω
1Ω
1800 TA01
50ns/DIV
1800 TA02
1800f
1
LT1800
W W
U W
ABSOLUTE AXI U 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
+
U W
U
PACKAGE/ORDER I FOR ATIO
ORDER PART
NUMBER
ORDER PART
TOP VIEW
NUMBER
TOP VIEW
NC
1
2
3
4
8
7
6
5
NC
+
–
+
V
1
2
5 V
S
+
LT1800CS8
LT1800IS8
OUT
–
LT1800CS5
LT1800IS5
–IN
V
V
S
V
S
+
–
+IN
–
OUT
+IN 3
4 –IN
V
S
NC
S8 PART MARKING
S5 PART MARKING
S5 PACKAGE
5-LEAD PLASTIC SOT-23
S8 PACKAGE
8-LEAD PLASTIC SO
1800
1800I
LTRN
LTRP
TJMAX = 150°C, θJA = 250°C/ W
TJMAX = 150°C, θJA = 190°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
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage
V
CM
V
CM
V
CM
V
CM
= 0V
75
300
0.5
0.7
350
750
3
µV
µV
mV
mV
= 0V (SOT-23)
= V
S
= V (SOT-23)
3.5
S
∆V
Input Offset Shift
Input Bias Current
V
= 0V to V – 1.5V
20
180
µV
OS
CM
S
I
V
CM
V
CM
= 1V
25
500
250
1500
nA
nA
B
= V
S
I
Input Offset Current
V
CM
V
CM
= 1V
25
25
200
200
nA
nA
OS
= V
S
Input Noise Voltage
0.1Hz to 10Hz
f = 10kHz
1.4
8.5
1
µV
P-P
e
n
Input Noise Voltage Density
Input Noise Current Density
Input Capacitance
nV/√Hz
pA/√Hz
pF
i
f = 10kHz
n
C
A
f = 100kHz
2
IN
Large-Signal Voltage Gain
V = 5V, V = 0.5V to 4.5V, R = 1k at V /2
35
3.5
30
85
8
85
V/mV
V/mV
V/mV
VOL
S
O
L
S
V = 5V, V = 1V to 4V, R = 100Ω at V /2
S
O
L
S
V = 3V, V = 0.5V to 2.5V, R = 1k at V /2
S
O
L
S
CMRR
PSRR
Common Mode Rejection Ratio
V = 5V, V = 0V to 3.5V
85
78
105
97
dB
dB
S
CM
V = 3V, V = 0V to 1.5V
S
CM
Input Common Mode Range
Power Supply Rejection Ratio
Minimum Supply Voltage (Note 6)
0
V
V
dB
V
S
V = 2.5V to 10V, V = 0V
80
97
S
CM
2.3
2.5
1800f
2
LT1800
ELECTRICAL CHARACTERISTICS
TA = 25°C, VS = 5V, 0V; VS = 3V, 0V; VCM = VOUT = half supply, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
Output Voltage Swing Low (Note 7)
Output Voltage Swing High (Note 7)
Short-Circuit Current
No Load
12
80
50
mV
mV
mV
OL
I
I
= 5mA
160
450
SINK
SINK
= 20mA
225
V
OH
No Load
16
120
450
60
250
750
mV
mV
mV
I
I
= 5mA
SOURCE
SOURCE
= 20mA
I
I
V = 5V
20
20
45
40
mA
mA
SC
S
V = 3V
S
Supply Current per Amplifier
Gain Bandwidth Product
Slew Rate
1.6
80
2
mA
MHz
V/µs
MHz
dBc
ns
S
GBW
SR
Frequency = 2MHz
40
13
V = 5V, A = –1, R = 1k, V = 4V
S
25
V
L
O
FPBW
HD
Full Power Bandwidth
Harmonic Distortion
Settling Time
V = 5V, V
S
= 4V
2
OUT
P-P
V = 5V, A = 1, R = 1k, V = 2V , f = 500kHz
S
–75
250
0.35
0.4
V
L
O
P-P C
t
0.01%, V = 5V, V
= 2V, A = 1, R = 1k
S
S
STEP V L
∆G
Differential Gain (NTSC)
Differential Phase (NTSC)
V = 5V, A = +2, R = 150Ω
S
%
V
L
∆θ
V = 5V, A = +2, R = 150Ω
S
Deg
V
L
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
CONDITIONS
MIN
TYP
MAX
UNITS
V
Input Offset Voltage
V
V
V
V
= 0V
●
●
●
●
125
300
0.6
500
1250
3.5
µV
µV
mV
mV
OS
CM
CM
CM
CM
= 0V (SOT-23)
= V
S
= V (SOT-23)
0.7
3.75
S
∆V
Input Offset Shift
V
= 0V to V – 1.5V
●
●
30
275
5
µV
OS
CM
S
V
TC
Input Offset Voltage Drift (Note 8)
Input Bias Current
1.5
µV/°C
OS
I
V
V
= 1V
●
●
50
550
300
1750
nA
nA
B
CM
CM
= V – 0.2V
S
I
Input Offset Current
V
V
= 1V
●
●
25
25
250
250
nA
nA
OS
CM
CM
= V – 0.2V
S
A
Large-Signal Voltage Gain
V = 5V, V = 0.5V to 4.5V, R = 1k at V /2
●
●
●
30
3
25
75
6
75
V/mV
V/mV
V/mV
VOL
S
O
L
S
V = 5V, V = 1V to 4V, R = 100Ω at V /2
S
O
L
S
V = 3V, V = 0.5V to 2.5V, R = 1k at V /2
S
O
L
S
CMRR
PSRR
Common Mode Rejection Ratio
V = 5V, V = 0V to 3.5V
●
●
82
74
101
93
dB
dB
S
CM
V = 3V, V = 0V to 1.5V
S
CM
Input Common Mode Range
●
●
●
0
V
V
dB
V
S
Power Supply Rejection Ratio
Minimum Supply Voltage (Note 6)
Output Voltage Swing Low (Note 7)
V = 2.5V to 10V, V = 0V
74
91
S
CM
2.3
2.5
V
V
No Load
●
●
●
14
100
300
60
200
550
mV
mV
mV
OL
OH
I
I
= 5mA
= 20mA
SINK
SINK
Output Voltage Swing High (Note 7)
Short-Circuit Current
No Load
●
●
●
25
150
600
80
300
950
mV
mV
mV
I
I
= 5mA
SOURCE
= 20mA
SOURCE
I
I
V = 5V
●
●
20
20
40
30
mA
mA
SC
S
V = 3V
S
Supply Current per Amplifier
Gain Bandwidth Product
Slew Rate
●
●
●
2
2.75
mA
MHz
V/µs
1800f
S
GBW
SR
Frequency = 2MHz
V = 5V, A = –1, R = 1k, V = 4V
P-P
35
11
75
22
S
V
L
O
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
MIN
TYP
MAX
UNITS
V
Input Offset Voltage
V
V
V
V
= 0V
●
●
●
●
175
400
0.75
0.9
700
2000
4
µV
µV
mV
mV
OS
CM
CM
CM
CM
= 0V (SOT-23)
= V
S
= V (SOT-23)
4
S
∆V
Input Offset Shift
V
= 0V to V – 1.5V
●
●
30
300
5
µV
OS
CM
S
V
TC
Input Offset Voltage Drift (Note 8)
Input Bias Current
1.5
µV/°C
OS
I
V
V
= 1V
●
●
50
600
400
2000
nA
nA
B
CM
CM
= V – 0.2V
S
I
Input Offset Current
V
V
= 1V
●
●
25
25
300
300
nA
nA
OS
CM
CM
= V – 0.2V
S
A
Large-Signal Voltage Gain
V = 5V, V = 0.5V to 4.5V, R = 1k at V /2
●
●
●
25
2.5
20
65
6
65
V/mV
V/mV
V/mV
VOL
S
O
L
S
V = 5V, V = 1.5V to 3.5V, R = 100Ω at V /2
S
O
L
S
V = 3V, V = 0.5V to 2.5V, R = 1k at V /2
S
O
L
S
CMRR
PSRR
Common Mode Rejection Ratio
V = 5V, V = 0V to 3.5V
●
●
81
73
101
93
dB
dB
S
CM
V = 3V, V = 0V to 1.5V
S
CM
Input Common Mode Range
●
●
●
0
V
V
dB
V
S
Power Supply Rejection Ratio
Minimum Supply Voltage (Note 6)
Output Voltage Swing Low (Note 7)
V = 2.5V to 10V, V = 0V
73
90
S
CM
2.3
2.5
V
V
No Load
●
●
●
15
105
170
70
210
400
mV
mV
mV
OL
OH
I
I
= 5mA
= 10mA
SINK
SINK
Output Voltage Swing High (Note 7)
Short-Circuit Current
No Load
●
●
●
25
150
300
90
350
700
mV
mV
mV
I
I
= 5mA
SOURCE
SOURCE
= 10mA
I
I
V = 5V
●
●
12.5
12.5
30
30
mA
mA
SC
S
V = 3V
S
Supply Current per Amplifier
Gain Bandwidth Product
Slew Rate
●
●
●
2.1
70
18
3
mA
MHz
V/µs
S
GBW
SR
Frequency = 2MHz
V = 5V, A = –1, R = 1k, V = 4V
30
10
S
V
L
O
TA = 25°C, VS = ±5V, VCM = 0V, VOUT = 0V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
–
–
V
Input Offset Voltage
V
V
V
V
= V
S
150
400
0.7
1
500
1000
3.5
µV
µV
mV
mV
OS
CM
CM
CM
CM
= V (SOT-23)
S
+
+
= V
S
= V (SOT-23)
4.5
S
–
+
∆V
Input Offset Shift
Input Bias Current
V
= V to V – 1.5V
30
475
µV
OS
CM
S
S
–
I
V
V
= V + 1V
25
400
350
1500
nA
nA
B
CM
CM
S
= V
+
S
–
+
I
Input Offset Current
V
V
= V + 1V
20
20
250
250
nA
nA
OS
CM
CM
S
= V
S
Input Noise Voltage
0.1Hz to 10Hz
f = 10kHz
1.4
8.5
1
µV
P-P
e
Input Noise Voltage Density
Input Noise Current Density
Input Capacitance
nV/√Hz
pA/√Hz
pF
n
i
f = 10kHz
n
C
f = 100kHz
2
IN
1800f
4
LT1800
ELECTRICAL CHARACTERISTICS
TA = 25°C, VS = ±5V, VCM = 0V, VOUT = 0V, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS
V = –4V to 4V, R = 1k
MIN
TYP
MAX
UNITS
A
VOL
Large-Signal Voltage Gain
25
2.5
70
7
V/mV
V/mV
O
L
V = –2V to 2V, R = 100Ω
O
L
–
CMRR
Common Mode Rejection Ratio
Input Common Mode Range
V
V
= V to 3.5V
85
109
dB
V
CM
S
–
+
V
V
S
S
+
–
PSRR
Power Supply Rejection Ratio
Output Voltage Swing Low (Note 7)
= 2.5V to 10V, V = 0V
80
97
dB
S
S
V
V
No Load
15
85
225
60
170
450
mV
mV
mV
OL
I
I
= 5mA
= 20mA
SINK
SINK
Output Voltage Swing High (Note 7)
No Load
17
130
450
70
260
750
mV
mV
mV
OH
I
I
= 5mA
= 20mA
SOURCE
SOURCE
I
I
Short-Circuit Current
Supply Current per Amplifier
Gain Bandwidth Product
Slew Rate
30
50
1.8
70
mA
mA
SC
2.75
S
GBW
SR
Frequency = 2MHz
A = –1, R = 1k, V = ±4V, Measured at V = ±2V
MHz
V/µs
MHz
dBc
ns
23
V
L
O
O
FPBW
HD
Full Power Bandwidth
Harmonic Distortion
Settling Time
V = 8V
0.9
–75
300
0.35
0.2
O
P-P
A = 1, R = 1k, V = 2V , f = 500kHz
V
L
O
P-P C
t
0.01%, V = 5V, A = 1V, R = 1k
STEP V L
S
∆G
Differential Gain (NTSC)
Differential Phase (NTSC)
A = +2, R = 150Ω
%
V
L
∆θ
A = +2, R = 150Ω
Deg
V
L
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
MAX
UNITS
–
–
V
Input Offset Voltage
V
V
V
V
= V
S
●
●
●
●
200
450
0.75
1
800
1500
4
µV
µV
mV
mV
OS
CM
CM
CM
CM
= V (SOT-23)
S
+
+
= V
S
= V (SOT-23)
5
S
–
+
∆V
Input Offset Shift
V
= V to V – 1.5V
●
●
45
675
5
µV
OS
CM
S
S
V
TC
Input Offset Voltage Drift (Note 8)
Input Bias Current
1.5
µV/°C
OS
–
I
V
V
= V + 1V
●
●
30
450
400
1750
nA
nA
B
CM
CM
S
S
+
= V – 0.2V
–
+
I
Input Offset Current
V
V
= V + 1V
●
●
25
25
300
300
nA
nA
OS
CM
CM
S
= V – 0.2V
S
A
Large-Signal Voltage Gain
V = –4V to 4V, R = 1k
●
●
20
2
55
5
V/mV
V/mV
VOL
O
L
V = –2V to 2V, R = 100Ω
O
L
–
CMRR
Common Mode Rejection Ratio
Input Common Mode Range
V
= V to 3.5V
●
●
●
82
105
dB
V
CM
S
–
+
V
S
V
S
+
–
PSRR
Power Supply Rejection Ratio
Output Voltage Swing Low (Note 7)
V
= 2.5V to 10V, V = 0V
74
91
dB
S
S
V
V
No Load
●
●
●
17
105
250
70
210
575
mV
mV
mV
OL
OH
I
I
= 5mA
= 20mA
SINK
SINK
Output Voltage Swing High (Note 7)
No Load
●
●
●
25
150
600
90
310
975
mV
mV
mV
I
I
= 5mA
= 20mA
SOURCE
SOURCE
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
45
MAX
UNITS
mA
I
I
Short-Circuit Current
Supply Current per Amplifier
Gain Bandwidth Product
Slew Rate
●
●
●
●
25
SC
S
2.4
70
3.5
mA
GBW
SR
Frequency = 2MHz
MHz
V/µs
A = –1, R = 1k, V = ±4V, Measured at V = ±2V
20
V
L
O
O
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
MIN
TYP
MAX
UNITS
–
–
V
Input Offset Voltage
V
V
V
V
= V
S
●
●
●
●
350
500
0.75
1
900
2250
4.5
µV
µV
mV
mV
OS
CM
CM
CM
CM
= V (SOT-23)
S
+
+
= V
S
= V (SOT-23)
5.5
S
–
+
∆V
Input Offset Shift
V
= V to V – 1.5V
●
●
50
750
5
µV
OS
CM
S
S
V
TC
Input Offset Voltage Drift (Note 8)
Input Bias Current
1.5
µV/°C
OS
–
I
V
V
= V + 1V
●
●
50
450
450
2000
nA
nA
B
CM
CM
S
S
+
= V – 0.2V
–
+
I
Input Offset Current
V
V
= V + 1V
●
●
25
25
350
350
nA
nA
OS
CM
CM
S
= V – 0.2V
S
A
Large-Signal Voltage Gain
V = –4V to 4V, R = 1k
●
●
16
2
55
5
V/mV
V/mV
VOL
O
L
V = –1V to 1V, R = 100Ω
O
L
–
CMRR
Common Mode Rejection Ratio
Input Common Mode Range
V
= V to 3.5V
●
●
●
81
104
dB
V
CM
S
–
+
V
S
V
S
+
–
PSRR
Power Supply Rejection Ratio
Output Voltage Swing Low (Note 7)
V
= 2.5V to 10V, V = 0V
73
90
dB
S
S
V
V
No Load
●
●
●
15
105
170
80
220
400
mV
mV
mV
OL
OH
I
I
= 5mA
= 10mA
SINK
SINK
Output Voltage Swing High (Note 7)
No Load
●
●
●
25
150
300
100
350
700
mV
mV
mV
I
I
= 5mA
= 10mA
SOURCE
SOURCE
I
I
Short-Circuit Current
Supply Current per Amplifier
Gain Bandwidth Product
Slew Rate
●
●
●
●
12.5
30
2.6
65
15
mA
mA
SC
4
S
GBW
SR
Frequency = 2MHz
A = –1, R = 1k, V = ±4V, Measured at V = ±2V
MHz
V/µs
V
L
O
O
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 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 4: The LT1800C/LT1800I are guaranteed functional over the
temperature range of –40°C to 85°C.
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)
VOS Distribution, VCM = 5V
(SO-8, NPN Stage)
VOS Distribution, VCM = 0V
(SOT-23, PNP Stage)
45
40
35
30
25
20
15
10
5
45
40
35
30
25
20
15
10
5
40
35
30
25
20
15
10
5
V
V
= 5V, 0V
CM
V
V
= 5V, 0V
CM
S
S
V
V
= 5V, 0V
CM
S
= 0V
= 5V
= 0V
0
0
0
–250
–150
–50
250
–2000 –1200
–400
2000
–1250 –750
–250
250
750
1250
50
150
400
1200
INPUT OFFSET VOLTAGE (µV)
INPUT OFFSET VOLTAGE (µV)
INPUT OFFSET VOLTAGE (µV)
1800 G01
1800 G02
1800 G38
V
OS Distribution, VCM = 5V
Offset Voltage
vs Input Common Mode Voltage
(SOT-23, NPN Stage)
Supply Current vs Supply Voltage
500
400
35
30
4
3
2
1
0
V
= 5V, 0V
V
V
= 5V, 0V
CM
S
S
T
= –55°C
A
TYPICAL PART
= 5V
300
T
= 125°C
A
T
A
25
200
T
= 25°C
A
100
20
15
10
5
= 25°C
A
0
–100
–200
–300
–400
–500
T
= –55°C
T
= 125°C
A
0
–2500 –1500 –500
500
1500
2500
0
1
2
3
4
5
6
7
8
9
10 11 12
0
1
2
3
4
5
INPUT OFFSET VOLTAGE (µV)
TOTAL SUPPLY VOLTAGE (V)
INPUT COMMON MODE VOLTAGE (V)
1800 G39
1800 G03
1800 G04
Input Bias Current
vs Common Mode Voltage
Input Bias Current
vs Temperature
Output Saturation Voltage
vs Load Current (Output Low)
10
1
0.8
1.0
0.8
V
= 5V, 0V
V
= 5V, 0V
S
S
T
A
T
A
T
A
= 25°C
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
= 125°C
= –55°C
NPN ACTIVE
0.6
V
= 5V, 0V
CM
S
0.4
V
= 5V
0.2
0.1
0
T
= 125°C
–0.2
–0.4
–0.6
–0.8
–1.0
A
PNP ACTIVE
= 5V, 0V
0.01
0.001
V
S
CM
T
= 25°C
T
= –55°C
A
A
V
= 1V
–0.1
0.01
0.1
1
10
100
0
1
2
3
4
5
6
–60 –40 –20
0
20
40
60
80
–1
LOAD CURRENT (mA)
TEMPERATURE (°C)
INPUT COMMON MODE VOLTAGE (V)
1800 G07
1800 G06
1800 G05
1800f
7
LT1800
U W
TYPICAL PERFOR A CE CHARACTERISTICS
Output Saturation Voltage
vs Load Current (Output High)
Output Short-Circuit Current
vs Power Supply Voltage
Minimum Supply Voltage
70
60
50
40
30
10
1
0.6
0.4
T
T
= 25°C
V
= 5V, 0V
A
S
T
A
= –55°C
= 125°C
A
0.2
T
= –55°C
SINKING
= 5V, 0V
A
20
T
= 25°C
10
0
A
V
S
0.1
0
T
= 125°C
= –55°C
A
–10
–20
–30
–40
–50
–60
–70
T
= –55°C
= 125°C
SOURCING
A
–0.2
T
A
= 125°C
T
0.01
0.001
A
T
= 25°C
T
A
A
–0.4
–0.6
T
= 25°C
A
1.5
2
2.5
3
3.5
4
4.5
5
0
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0.01
0.1
1
10
100
POWER SUPPLY VOLTAGE (±V)
LOAD CURRENT (mA)
TOTAL SUPPLY VOLTAGE (V)
1800 G08
1800 G09
1800 G10
Open-Loop Gain
Open-Loop Gain
Open-Loop Gain
2000
1600
1200
800
2000
1600
1200
800
2000
1600
1200
800
V
= 3V, 0V
TO GND
V
= 5V, 0V
TO GND
V = ±5V
S
R TO GND
L
S
L
S
L
R
R
400
400
400
R
L
= 1k
R
= 1k
R
L
= 1k
L
0
0
0
–400
–800
–1200
–1600
–2000
–400
–800
–1200
–1600
–2000
–400
–800
–1200
–1600
–2000
R
= 100Ω
L
R
= 100Ω
L
R
= 100Ω
L
0
0.5
1.5
2
2.5
3
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
–5 –4 –3 –2 –1
0
1
2
3
4
5
1
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
1800 G11
1800 G12
1800 G13
Warm-Up Drift vs Time
(LT1800S8)
Input Noise Voltage vs Frequency
Offset Voltage vs Output Current
60
120
110
100
90
2.0
1.5
V = 5V, 0V
S
V
S
= ±5V
V
S
= ±5V
50
40
1.0
T
= –55°C
A
0.5
NPN ACTIVE
= 4.25V
V
= ±2.5V
= ±1.5V
S
S
30
20
80
0
V
CM
70
–0.5
–1.0
–1.5
–2.0
T
A
= 25°C
T
= 125°C
A
60
V
10
0
PNP ACTIVE
= 2.5V
50
V
CM
TYPICAL PART
40
0.01
0.1
1
FREQUENCY (kHz)
10
100
0
15
20
40
80 100 120 140
–60 –45 –30 –15
30 45 60
0
60
OUTPUT CURRENT (mA)
TIME AFTER POWER-UP (SECONDS)
1800 G16
1800 G14
1800 G15
1800f
8
LT1800
U W
TYPICAL PERFOR A CE CHARACTERISTICS
0.1Hz to 10Hz Output Voltage
Noise
Gain Bandwidth and Phase
Margin vs Supply Voltage
Input Current Noise vs Frequency
3.0
2000
1000
0
100
90
80
70
60
V
S
= 5V, 0V
V
= 5V, 0V
T
= 25°C
S
A
2.5
2.0
GAIN BANDWIDTH
PRODUCT
PNP ACTIVE
= 2.5V
60
50
40
30
20
1.5
1.0
V
CM
PHASE MARGIN
–1000
–2000
NPN ACTIVE
= 4.25V
0.5
0
V
CM
0.01
0.1
1
FREQUENCY (kHz)
10
100
0
1
2
3
4
5
6
7
8
9
10
0
1
2
3
4
5
6
7
8
9
10
TIME (SECONDS)
TOTAL SUPPLY VOLTAGE (V)
1800 G17
1800 G18
1800 G19
Gain Bandwidth and Phase
Margin vs Temperature
Slew Rate vs Temperature
Gain and Phase vs Frequency
70
60
50
40
100
80
100
35
A
= –1
G
= 1k
V
F
L
GBW PRODUCT
= ±2.5V
90
80
70
60
50
R = R = 1k
V
S
V
S
= ±2.5V
PHASE
R
30
25
60
GBW PRODUCT
= ±5V
40
V
S
30
20
20
0
V
= ±5V
S
GAIN
PHASE MARGIN
= ±2.5V
60
50
40
30
20
10
V
S
10
0
–20
–40
–60
–80
–100
20
15
10
PHASE MARGIN
= ±5V
V
S
–10
–20
–30
V
V
= ±2.5V
= ±5V
S
S
0.01
0.1
1
10
100 300
–55 –35 –15
5
25 45 65 85 105 125
–55 –35 –15
5
25 45 65 85 105 125
TEMPERATURE (°C)
TEMPERATURE (°C)
FREQUENCY (MHz)
1800 G22
1800 G20
1800 G21
Gain vs Frequency (AV = 1)
Gain vs Frequency (AV = 2)
Output Impedance vs Frequency
600
12
9
18
15
12
9
R
C
V
= 1k
= 10pF
= 2
R
C
V
= 1k
= 10pF
= 1
V
S
= ±2.5V
L
L
L
L
100
10
A
A
6
A
V
= 10
3
V
= ±2.5V
S
A
V
= 1
1
0
6
V
S
= ±2.5V
V
= ±5V
S
A
V
= 2
–3
–6
–9
–12
3
0.1
V
S
= ±5V
0
0.01
–3
–6
0.001
0.1
1
10
100 300
0.1
1
10
100 300
0.1
1
10
FREQUENCY (MHz)
100
500
FREQUENCY (MHz)
FREQUENCY (MHz)
1800 G23
1800 G24
1800 G25
1800f
9
LT1800
TYPICAL PERFOR A CE CHARACTERISTICS
U W
Series Output Resistor
vs Capacitive Load
Common Mode Rejection Ratio
vs Frequency
Power Supply Rejection Ratio
vs Frequency
120
60
55
50
45
40
35
30
25
20
15
10
5
90
80
70
60
V
S
= 5V, 0V
V
= 5V, 0V
= 25°C
V
A
= 5V, 0V
= 1
S
A
S
V
T
100
80
NEGATIVE
SUPPLY
POSITIVE
SUPPLY
R
= 10Ω
OS
50
40
60
40
R
= 20Ω
OS
30
20
10
20
0
R
= R = 50Ω
L
OS
0
0
–10
0.01
0.1
1
10
100
10
100
1000
10000
0.001
0.01
0.1
1
10
100
FREQUENCY (MHz)
CAPACITIVE LOAD (pF)
FREQUENCY (MHz)
1800 G26
1800 G28
1800 G27
Series Output Resistor
vs Capacitive Load
Distortion vs Frequency
Distortion vs Frequency
60
55
50
45
40
35
30
25
20
15
10
5
–40
–50
–40
–50
V
A
= 5V, 0V
= 2
V
A
V
= 5V, 0V
= 1
V
A
V
= 5V, 0V
= 2
S
V
S
V
S
V
= 2V
= 2V
OUT
P-P
OUT
P-P
R
= 1k,
L
–60
–60
2ND
R
L
= 150Ω, 2ND
R
L
= 150Ω, 2ND
R
= 1k, 2ND
L
–70
–70
R
L
= 150Ω,
3RD
R
L
= 150Ω, 3RD
R
= 10Ω
OS
–80
–80
R
= 20Ω
OS
–90
–90
–100
–100
R
L
= 1k, 3RD
R
L
= 1k, 3RD
R
= R = 50Ω
L
OS
0
–110
–110
10
100
1000
10000
0.01
0.1
1
10
0.01
0.1
1
10
CAPACITIVE LOAD (pF)
FREQUENCY (MHz)
FREQUENCY (MHz)
1800 G29
1800 G30
1800 G31
Maximum Undistorted Output
Signal vs Frequency
5V Small-Signal Response
5V Large-Signal Response
4.6
4.5
4.4
4.3
4.2
4.1
4.0
3.9
50mV/DIV
0V
A
= 2
V
1V/DIV
0V
A
= –1
V
VS = 5V, 0V
AV = 1
50ns/DIV
1800 G34
V
= 5V, 0V
= 1k
VS = 5V, 0V
AV = 1
100ns/DIV
1800 G33
S
L
R
R
L = 1k
R
L = 1k
1k
10k
100k
FREQUENCY (Hz)
1M
10M
1800 G32
1800f
10
LT1800
U W
TYPICAL PERFOR A CE CHARACTERISTICS
±5V Small-Signal Response
Output Overdriven Recovery
±5V Large-Signal Response
VIN
1V/DIV
50mV/DIV
0V
2V/DIV
0V
0V
VOUT
2V/DIV
0V
VS = ±5V
AV = 1
RL = 1k
50ns/DIV
1800 G36
V
S = 5V, 0V
100ns/DIV
1800 G37
VS = ±5V
200ns/DIV
1800 G35
AV = 2
AV = 1
RL = 1k
R
L = 1k
W U U
U
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 differ-
entialamplifiers, aPNPstageQ1/Q2andanNPNstageQ3/
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
R4
R5
–
+
V
V
Q12
+
+
D1
ESDD1
ESDD2
Q11
Q13
Q15
I
2
I
1
C2
+IN
–IN
+
D6
D5
D8
D7
Q5
V
BIAS
I
3
D2
OUT
C
C
–
V
Q4 Q3
Q1 Q2
D3
BUFFER
AND
OUTPUT BIAS
ESDD4
ESDD3
Q10
–
+
V
V
D4
Q9
R1
Q8
R2
Q16
C1
Q17
Q18
Q14
Q7
Q6
Q19
–
V
1800 F01
Figure 1. LT1800 Simplified Schematic Diagram
1800f
11
LT1800
W U U
U
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.
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.
ApairofcomplementarycommonemitterstagesQ14/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 bi-
polar process.
Input Bias Current
The LT1800 employs a patent-pending technique to trim
the input bias current to less than 250nA for the input
commonmodevoltageof0.2Vabovenegativesupplyrail
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 imped-
ance applications.
Power Dissipation
TheLT1800amplifierisofferedinasmallpackage,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 dissi-
pation PD and thermal resistance θJA:
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 maxi-
mum 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.
TJ = TA + (PD • θJA)
ThepowerdissipationintheICisthefunctionofthesupply
voltage,outputvoltageandtheloadresistance.Foragiven
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:
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
severelyoverdriven, anexternalresistorshouldbeusedto
limit the overdrive current.
PDMAX=(10•4mA)+(2.5)2/50=0.04+0.125=0.165W
The maximum ambient temperature that the part is al-
lowed to operate is:
TA = TJ – (PDMAX • 250°C/W)
= 150°C – (0.165W • 250°C/W) = 108°C
Input Offset Voltage
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
Theoffsetvoltagewillchangedependinguponwhichinput
stage is active. The PNP input stage is active from the
negative supply rail to 1.2V of the positive supply rail, then
1800f
12
LT1800
W U U
APPLICATIO S I FOR ATIO
U
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.
stability. Graphs on capacitive loads indicate the transient
responseoftheamplifierwhendrivingcapacitiveloadwith
a specified series resistor.
Feedback Components
Whenfeedbackresistorsareusedtosetupgain,caremust
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 cross-
overfrequencyoftheamplifierisaround20MHz.Acapaci-
tor of 5pF or higher connected across the feedback resis-
tor will eliminate any ringing or oscillation.
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 oscilla-
tion. The feedback should still be taken from the output so
that the resistor will isolate the capacitive load to ensure
W U 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
reasonstheLT1800iswellsuitedtothiscontroltaskisthat
its 2.3V operation ensures that it will be awake during
power-up and operated before the circuit can otherwise
causesignificantcurrenttoflowinthe2.1Vthresholdlaser
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 con-
verter. 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
graphiconthefrontpage. Whilethecircuitiscapableof1A
operation, the laser diode and the transistor are thermally
limitedduetopowerdissipation, sotheymustbeoperated
at low duty cycles.
Asimple,fastcurrentsenseamplifierinFigure2issuitable
for quickly responding to out-of-range currents. The cir-
cuit amplifies the voltage across the 0.1Ω sense resistor
by a gain of 20, resulting in a conversion gain of 2V/A. The
–3dBbandwidthofthecircuitis4MHz,andtheuncertainty
due to VOS and IB is less than 4mA. The minimum output
voltageis60mV,correspondingto30mA.Thelarge-signal
response of the circuit is shown in Figure 3.
I
L
3V
0A TO 1A
52.3Ω
+
–
V
OUT
LT1800
0V TO 2V
0.1
Ω
1k
52.3Ω
1800 F02
V
= 2 • I
= 4MHz
OUT
L
f
–3dB
UNCERTAINTY DUE TO V
I
B
< 4mA
OS,
Figure 2. Fast 1A Current Sense
1800f
13
LT1800
U
TYPICAL APPLICATIO S
Single 3V Supply, 1MHz, 4th Order Butterworth Filter
The circuit shown in Figure 4 makes use of the low voltage
operation and the wide bandwidth of the LT1800 to create
aDCaccurate1MHz4thorderlowpassfilterpoweredfrom
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.
500mV/DIV
0V
VS = 3V
50ns/DIV
1800 F03
Figure 3. Current Sense Amplifier Large-Signal Response
47pF
909Ω
3V
909
Ω
2.67k
22pF
1.1k
2.21k
–
V
IN
1.1k
–
220pF
LT1800
+
470pF
V
LT1800
OUT
+
V /2
S
1800 F04
Figure 4. 3V, 1MHz, 4th Order Butterworth Filter
0
–20
–40
–60
–80
–100
–120
1k
10k
100k
1M
10M
100M
FREQUENCY (Hz)
1800 F05
Figure 5. Frequency Response of Filter
1800f
14
LT1800
U
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
1.50 – 1.75
(NOTE 4)
2.80 BSC
1.4 MIN
3.85 MAX 2.62 REF
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
DATUM ‘A’
0.01 – 0.10
1.00 MAX
0.30 – 0.50 REF
1.90 BSC
0.09 – 0.20
(NOTE 3)
NOTE:
S5 TSOT-23 0302
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
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
(0.254 – 0.508)
7
5
8
6
× 45°
0.053 – 0.069
(1.346 – 1.752)
0.004 – 0.010
(0.101 – 0.254)
0.008 – 0.010
(0.203 – 0.254)
0°– 8° TYP
0.150 – 0.157**
(3.810 – 3.988)
0.228 – 0.244
(5.791 – 6.197)
0.016 – 0.050
(0.406 – 1.270)
0.050
(1.270)
BSC
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
SO8 1298
**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
1
3
4
2
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 represen-
tationthattheinterconnectionofitscircuitsasdescribedhereinwillnotinfringeonexistingpatentrights.
15
LT1800
U
TYPICAL APPLICATIO
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 resis-
tors 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
outputvoltagetotheload. Theattentiontolimitthecurrent
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.
Low Power High Voltage Amplifier
Certain materials used in optical applications have charac-
teristics 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 de-
sired 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
10k
4.99k
1k
Q6
Q5
0.1µF
Q2
Q1
5V
5V
R4
2k
R6
2k
+
R2
2k
V
OUT
MATERIAL UNDER
LT1800
–
R5
2k
R7
2k
VIN
2V/DIV
ELECTRIC FIELD
100pF
Q3
Q4
V
IN
R1
2k
VOUT
50V/DIV
A
V
= V /V = –100
OUT IN
C1
39pF
10k
±130V SUPPLY I = 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
Q
Q7
Q8
1k
C2
R3
200k
8pF
4.99k
150V
–130V
10µs/DIV
1800 F07
Q3, Q4, Q5, Q6: ON SEMI MPSA92
1800 F06
Figure 7. Large-Signal Time Domain
Response of the Amplifier
Figure 6. Low Power, High Voltage Amplifier
RELATED PARTS
PART NUMBER DESCRIPTION
COMMENTS
0.1dB Gain Flatness to 150MHz, Shutdown
High DC Accuracy, 475µV V , 4µV/°C Max Drift,
LT1399
Triple 300MHz Current Feedback Amplifier
LT1498/LT1499 Dual/Quad 10MHz, 6Vµs Rail-to-Rail Input and Output C-LoadTM
OS(MAX)
Op Amps
Max Supply Current 2.2mA per Amp
LT1630/LT1631 Dual/Quad 30MHz, 10V/µs Rail-to-Rail Input and Output Op Amps
High DC Accuracy, 525µV V , 70mA Output Current,
OS(MAX)
Max Supply Current 4.4mA per Amplifier
LT1801/LT1802 80MHz, 25V/µs Low Power Rail-to-Rail Input/Output Precision Op Amps Dual/Quad Version of the LT1800
LT1806/LT1807 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
C-Load is a trademark of Linear Technology Corporation.
High DC Accuracy, 550µV V
, Low Noise 3.5nV/√Hz,
OS(MAX)
Low Distortion –80dB at 5MHz, Power-Down (LT1806)
350V/µs Slew Rate, Low Distortion –90dBc at 5MHz,
Power-Down (LT1809)
1800f
LT/TP 0402 2K • PRINTED IN USA
16 LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
●
●
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
LINEAR TECHNOLOGY CORPORATION 2001
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