LT1636IDD#TR [Linear]
LT1636 - Over-The-Top Micropower Rail-to-Rail Input and Output Op Amp; Package: DFN; Pins: 8; Temperature Range: -40°C to 85°C;
| 型号： | LT1636IDD#TR |
| 厂家： | 
Linear |
| 描述： | LT1636 - Over-The-Top Micropower Rail-to-Rail Input and Output Op Amp; Package: DFN; Pins: 8; Temperature Range: -40°C to 85°C 放大器 光电二极管 |
| 文件： | 总16页 (文件大小：389K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LT1636
Over-The-Top
Micropower Rail-to-Rail
Input and Output Op Amp
U
FEATURES
DESCRIPTIO
TheLT®1636opampoperatesonallsingleandsplitsupplies
with a total voltage of 2.7V to 44V drawing less than 50µA of
quiescentcurrent.TheLT1636canbeshutdown,makingthe
outputhighimpedanceandreducingthequiescentcurrentto
4µA. The LT1636 has a unique input stage that operates and
remainshighimpedancewhenabovethepositivesupply.The
inputs take 44V both differential and common mode, even
when operating on a 3V supply. The output swings to both
supplies. Unlike most micropower op amps, the LT1636 can
drive heavy loads; its rail-to-rail output drives 18mA. The
LT1636 is unity-gain stable into all capacitive loads up to
10,000pF when a 0.22µF and 150Ω compensation network
is used.
■
Rail-to-Rail Input and Output
■
Micropower: 50µA IQ, 44V Supply
■
Operating Temperature Range: – 40°C to 125°C
Over-The-Top®: Input Common Mode Range
■
Extends 44V Above VEE, Independent of VCC
■
Low Input Offset Voltage: 225µV Max
■
Specified on 3V, 5V and ±15V Supplies
■
High Output Current: 18mA
■
Output Shutdown
■
Output Drives 10,000pF with Output Compensation
■
Reverse Battery Protection to 27V
■
High Voltage Gain: 2000V/mV
■
High CMRR: 110dB
■
220kHz Gain-Bandwidth Product
The LT1636 is reverse supply protected: it draws no current
for reverse supply up to 27V. Built-in resistors protect the
inputs for faults below the negative supply up to 22V. There
is no phase reversal of the output for inputs 5V below VEE or
44V above VEE, independent of VCC.
■
8-Lead DFN, MSUOP, PDIP and SO Packages
APPLICATIO S
■
Battery- or Solar-Powered Systems
Portable Instrumentation
Sensor Conditioning
TheLT1636opampisavailableinthe8-pinMSOP, PDIPand
SO packages. For space limited applications the LT1636 is
available in a 3mm × 3mm × 0.8mm dual fine pitch leadless
package (DFN).
Over-The-Top is a registered trademark of Linear Technology Corporation.
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
■
Supply Current Sensing
■
Battery Monitoring
MUX Amplifiers
4mA to 20mA Transmitters
■
■
U
TYPICAL APPLICATIO
Input Bias Current vs Common Mode Voltage
5000
Over-The-Top Current Source with Shutdown
V
= 5V, 0V
S
3000
1000
4V TO
44V
LT1004-1.2
R*
1M
R
40
30
+
–
LT1636
TPO610
T
= –55°C
20
A
1.2
R
10
I
=
OUT
T
= 125°C
A
I
e.g., 10mA = 120Ω
0
OUT
T
= 25°C
A
–10
SHDN
*OPTIONAL FOR LOW OUTPUT CURRENTS
1636 TA01
4.0
4.4
4.8
50
5.2 10 20 30 40
COMMON MODE VOLTAGE (V)
1636 G03
1636fc
1
LT1636
W W
U W
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Total Supply Voltage (V+ to V–) .............................. 44V
Input Differential Voltage ......................................... 44V
Input Current ...................................................... ±25mA
Shutdown Pin Voltage Above V– ............................. 32V
Shutdown Pin Current ....................................... ±10mA
Output Short-Circuit Duration (Note 2).........Continuous
Operating Temperature Range (Note 3)
Specified Temperature Range (Note 4)
LT1636C/LT1636I .............................. –40°C to 85°C
LT1636H .......................................... –40°C to 125°C
Junction Temperature........................................... 150°C
Junction Temperature (DD Package) ................... 125°C
Storage Temperature Range ................. –65°C to 150°C
Storage Temperature Range
(DD Package) ....................................... –65°C to 125°C
LT1636C/LT1636I .............................. –40°C to 85°C
LT1636H .......................................... –40°C to 125°C
Lead Temperature (Soldering, 10 sec).................. 300°C
U
W
U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
TOP VIEW
NULL
–IN
1
2
3
4
NULL
8
7
6
5
TOP VIEW
NULL
–IN
1
2
3
4
8
7
6
5
NULL
+
+
V
V
NULL 1
8 NULL
7 V
6 OUT
5 SHDN
+
2
–IN
+IN 3
+IN
OUT
+IN
OUT
–
–
–
V
SHDN
V
4
V
SHDN
MS8 PACKAGE
8-LEAD PLASTIC MSOP
TJMAX = 150°C, θJA = 250°C/W
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
DD PACKAGE
8-LEAD PLASTIC SO
8-LEAD (3mm × 3mm) PLASTIC DFN
TJMAX = 150°C, θJA = 150°C/W (N8)
JMAX = 150°C, θJA = 190°C/W (S8)
TJMAX = 125°C, θJA = 160°C/W (NOTE 2)
UNDERSIDE METAL CONNECTED TO V–
T
ORDER PART
NUMBER
DD PART*
MARKING
ORDER PART
NUMBER
MS8 PART*
MARKING
ORDER PART
NUMBER
S8 PART*
MARKING
LT1636CN8
LT1636CS8
LT1636IN8
LT1636IS8
LT1636HS8
1636
1636I
1636H
LT1636CDD
LT1636IDD
LAAJ
LT1636CMS8
LT1636IMS8
LTCL
*The temperature grades are identified by a label on the shipping container. Consult factory for parts specified with wider operating temperature ranges.
U
3V A D 5V ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating temperature range of –40°C ≤ TA ≤ 85°C.
VS = 3V, 0V; VS = 5V, 0V; VCM = VOUT = half supply unless otherwise specified. (Note 4)
LT1636C/LT1636I
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage
N8 Package
50
225
400
550
µV
µV
µV
0°C ≤ T ≤ 70°C
●
●
A
–40°C ≤ T ≤ 85°C
A
S8 Package
50
50
225
600
750
µV
µV
µV
µV
µV
µV
0°C ≤ T ≤ 70°C
●
●
A
–40°C ≤ T ≤ 85°C
A
MS8 Package
225
700
1050
0°C ≤ T ≤ 70°C
●
●
A
–40°C ≤ T ≤ 85°C
A
1636fc
2
LT1636
U
3V A D 5V ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating temperature range of –40°C ≤ TA ≤ 85°C.
VS = 3V, 0V; VS = 5V, 0V; VCM = VOUT = half supply unless otherwise specified. (Note 4)
LT1636C/LT1636I
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
DD Package
75
425
900
1050
µV
µV
µV
0°C ≤ T ≤ 70°C
●
●
A
–40°C ≤ T ≤ 85°C
A
Input Offset Voltage Drift (Note 9)
N8 Package, –40°C ≤ T ≤ 85°C
●
●
●
●
1
2
2
2
5
8
10
10
µV/°C
µV/°C
µV/°C
µV/°C
A
S8 Package, –40°C ≤ T ≤ 85°C
A
MS8 Package, –40°C ≤ T ≤ 85°C
A
DD Package, –40°C ≤ T ≤ 85°C
A
I
I
Input Offset Current
Input Bias Current
●
●
0.1
0.8
0.6
nA
OS
B
V
= 44V (Note 5)
µA
CM
●
●
5
3
0.1
8
6
nA
µA
nA
V
= 44V (Note 5)
CM
S
V = 0V
Input Noise Voltage
0.1Hz to 10Hz
f = 1kHz
0.7
52
µV
P-P
nV/√Hz
pA/√Hz
e
Input Noise Voltage Density
Input Noise Current Density
Input Resistance
n
i
f = 1kHz
0.035
n
R
Differential
Common Mode, V = 0V to 44V
6
7
10
15
MΩ
MΩ
IN
CM
C
Input Capacitance
4
pF
V
IN
Input Voltage Range
●
0
44
CMRR
Common Mode Rejection Ratio
(Note 5)
V
V
= 0V to V – 1V
●
●
84
86
110
98
dB
dB
CM
CM
CC
= 0V to 44V (Note 8)
A
Large-Signal Voltage Gain
V = 3V, V = 500mV to 2.5V, R = 10k
200
133
100
1300
V/mV
V/mV
V/mV
VOL
S
O
L
V = 3V, 0°C ≤ T ≤ 70°C
●
●
S
A
V = 3V, –40°C ≤ T ≤ 85°C
S
A
V = 5V, V = 500mV to 4.5V, R = 10k
400
250
200
2000
V/mV
V/mV
V/mV
S
O
L
V = 5V, 0°C ≤ T ≤ 70°C
●
●
S
A
V = 5V, –40°C ≤ T ≤ 85°C
S
A
V
V
Output Voltage Swing LOW
Output Voltage Swing HIGH
No Load
SINK
V = 5V, I
S
●
●
●
2
10
mV
mV
mV
OL
OH
I
= 5mA
480
860
875
= 10mA
1600
SINK
V = 3V, No Load
●
●
2.95
2.55
2.985
2.8
V
V
S
V = 3V, I
= 5mA
S
SOURCE
V = 5V, No Load
S
●
●
4.95
4.30
4.985
4.75
V
V
S
V = 5V, I
= 10mA
SOURCE
I
Short-Circuit Current (Note 2)
V = 3V, Short to GND
7
20
15
42
mA
mA
SC
S
V = 3V, Short to V
S
CC
V = 5V, Short to GND
12
25
25
50
mA
mA
S
V = 5V, Short to V
S
CC
PSRR
Power Supply Rejection Ratio
Reverse Supply Voltage
Supply Current
V = 2.7V to 12.5V, V = V = 1V
●
●
90
27
103
40
dB
V
S
CM
O
I = –100µA
S
I
I
(Note 6)
42
55
60
µA
µA
µA
nA
µA
S
●
●
Supply Current, SHDN
Shutdown Pin Current
V
= 2V, No Load (Note 6)
4
12
PIN5
V
V
= 0.3V, No Load (Note 6)
= 2V, No Load (Note 5)
●
●
0.5
1.1
15
5
SD
PIN5
PIN5
Output Leakage Current, SHDN
Maximum Shutdown Pin Current
Turn-On Time
V
V
V
V
= 2V, No Load (Note 6)
= 32V, No Load (Note 5)
●
●
0.05
27
1
µA
µA
µs
PIN5
PIN5
PIN5
PIN5
150
t
t
= 5V to 0V, R = 10k
120
2.5
ON
L
Turn-Off Time
= 0V to 5V, R = 10k
µs
OFF
L
1636fc
3
LT1636
U
3V A D 5V ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating temperature range of –40°C ≤ TA ≤ 85°C.
VS = 3V, 0V; VS = 5V, 0V; VCM = VOUT = half supply unless otherwise specified. (Note 4)
LT1636C/LT1636I
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
GBW
Gain Bandwidth Product
(Note 5)
f = 1kHz
110
100
90
200
kHz
kHz
kHz
0°C ≤ T ≤ 70°C
●
●
A
–40°C ≤ T ≤ 85°C
A
SR
Slew Rate
(Note 7)
A = –1, R =
∞
0.035
0.031
0.030
0.07
V/µs
V/µs
V/µs
V
L
0°C ≤ T ≤ 70°C
●
●
A
–40°C ≤ T ≤ 85°C
A
±15V ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating temperature range of –40°C ≤ TA ≤ 85°C.
VS = ±15V, VCM = 0V, VOUT = 0V, VSHDN = V– unless otherwise specified. (Note 4)
LT1636C/LT1636I
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage
N8 Package
100
450
550
700
µV
µV
µV
0°C ≤ T ≤ 70°C
●
●
A
–40°C ≤ T ≤ 85°C
A
S8 Package
100
100
125
450
750
900
µV
µV
µV
0°C ≤ T ≤ 70°C
●
●
A
–40°C ≤ T ≤ 85°C
A
MS8 Package
450
850
1200
µV
µV
µV
0°C ≤ T ≤ 70°C
●
●
A
–40°C ≤ T ≤ 85°C
A
DD Package
650
1050
1200
µV
µV
µV
0°C ≤ T ≤ 70°C
●
●
A
–40°C ≤ T ≤ 85°C
A
Input Offset Voltage Drift (Note 9)
N8 Package, –40°C ≤ T ≤ 85°C
●
●
●
●
1
2
2
2
4
8
10
10
µV/°C
µV/°C
µV/°C
µV/°C
A
S8 Package, –40°C ≤ T ≤ 85°C
A
MS8 Package, –40°C ≤ T ≤ 85°C
A
DD Package, –40°C ≤ T ≤ 85°C
A
I
I
Input Offset Current
Input Bias Current
●
●
0.2
4
1.0
10
nA
nA
OS
B
Input Noise Voltage
0.1Hz to 10Hz
f = 1kHz
1
µV
P-P
e
Input Noise Voltage Density
Input Noise Current Density
Input Resistance
52
nV/√Hz
pA/√Hz
n
i
f = 1kHz
0.035
n
R
IN
Differential
Common Mode, V = –15V to 14V
5.2
13
12000
MΩ
MΩ
CM
C
Input Capacitance
4
pF
V
IN
Input Voltage Range
●
●
–15
86
29
CMRR
Common Mode Rejection Ratio
Large-Signal Voltage Gain
V
= –15V to 29V
103
500
dB
CM
A
V
V
V = ±14V, R = 10k
100
75
50
V/mV
V/mV
V/mV
VOL
O
L
0°C ≤ T ≤ 70°C
●
●
A
–40°C ≤ T ≤ 85°C
A
Output Voltage Swing LOW
Output Voltage Swing HIGH
No Load
●
●
●
–14.997 –14.95
–14.500 –14.07
–14.125 –13.35
V
V
V
OL
I
I
= 5mA
= 10mA
SINK
SINK
No Load
●
●
●
14.9
14.5
14.3
14.975
14.750
14.650
V
V
V
OH
I
I
= 5mA
= 10mA
SOURCE
SOURCE
1636fc
4
LT1636
±15V ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating temperature range of –40°C ≤ TA ≤ 85°C, otherwise
specifications are at TA = 25°C. VS = ±15V, VCM = 0V, VOUT = 0V, VSHDN = V– unless otherwise specified. (Note 4)
LT1636C/LT1636I
SYMBOL
PARAMETER
CONDITIONS
Short to GND
0°C ≤ T ≤ 70°C
MIN
TYP
MAX
UNITS
I
Short-Circuit Current (Note 2)
± 18
± 15
± 10
± 30
mA
mA
mA
SC
●
●
A
–40°C ≤ T ≤ 85°C
A
PSRR
Power Supply Rejection Ratio
Supply Current
V = ±1.35V to ±22V
●
90
114
50
dB
S
I
70
85
µA
µA
S
●
●
Positive Supply Current, SHDN
Shutdown Pin Current
V
PIN5
= –20V, V = ±22V, No Load
12
30
µA
S
I
V
PIN5
V
PIN5
= –21.7V, V = ±22V, No Load
●
●
0.7
1.2
15
8
nA
µA
SHDN
S
= –20V, V = ±22V, No Load
S
Maximum Shutdown Pin Current
Output Leakage Current, SHDN
Gain Bandwidth Product
V
V
= 32V, V = ±22V
●
●
27
0.1
220
150
2
µA
µA
PIN5
PIN5
S
= –20V, V = ±22V, No Load
S
GBW
SR
f = 1kHz
0°C ≤ T ≤ 70°C
–40°C ≤ T ≤ 85°C
125
110
100
kHz
kHz
kHz
●
●
A
A
Slew Rate
A = –1, R =
∞
, V = ±10V Measured at ±5V
0.0375
0.033
0.030
0.075
V/µs
V/µs
V/µs
V
L
O
0°C ≤ T ≤ 70°C
●
●
A
–40°C ≤ T ≤ 85°C
A
U
3V A D 5V ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating temperature range of –40°C ≤ TA ≤ 125°C.
VS = 3V, 0V; VS = 5V, 0V; VCM = VOUT = half supply unless otherwise specified. (Note 4)
LT1636H
TYP
SYMBOL
PARAMETER
CONDITIONS
MIN
MAX
UNITS
V
Input Offset Voltage
50
325
3
µV
OS
●
●
mV
Input Offset Voltage Drift (Note 9)
Input Offset Current
3
10
µV/°C
I
I
●
●
3
1
nA
µA
OS
V
V
= 44V (Note 5)
= 44V (Note 5)
CM
Input Bias Current
●
●
30
10
nA
µA
B
CM
Input Voltage Range
●
0.3
44
V
CMRR
Common Mode Rejection Ratio
(Note 5)
V
CM
V
CM
= 0.3V to V – 1V
●
●
72
74
dB
dB
CC
= 0.3V to 44V
A
VOL
Large-Signal Voltage Gain
V = 3V, V = 500mV to 2.5V, R = 10k
200
20
1300
2000
V/mV
V/mV
S
O
L
●
●
V = 5V, V = 500mV to 4.5V, R = 10k
400
35
V/mV
V/mV
S
O
L
V
V
Output Voltage Swing LOW
Output Voltage Swing HIGH
No Load
SINK
●
●
15
875
mV
mV
OL
I
= 2.5mA
V = 3V, No Load
●
●
2.925
2.35
V
V
OH
S
V = 3V, I
S
= 5mA
SOURCE
V = 5V, No Load
●
●
4.925
4.10
V
V
S
V = 5V, I
= 10mA
S
SOURCE
PSRR
Power Supply Rejection Ratio
Minimum Supply Voltage
V = 2.7V to 12.5V, V = V = 1V
●
●
80
dB
V
S
CM
O
2.7
1636fc
5
LT1636
U
3V A D 5V ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating temperature range of –40°C ≤ TA ≤ 125°C.
VS = 3V, 0V; VS = 5V, 0V; VCM = VOUT = half supply unless otherwise specified. (Note 4)
LT1636H
TYP
SYMBOL
PARAMETER
CONDITIONS
MIN
MAX
UNITS
Reverse Supply Voltage
Supply Current
I = –100µA
(Note 6)
●
25
V
S
I
I
42
55
75
µA
µA
µA
nA
µA
S
●
●
Supply Current, SHDN
Shutdown Pin Current
V
= 2V, No Load (Note 6)
15
PIN5
V
V
= 0.3V, No Load (Note 6)
= 2V, No Load (Note 5)
●
●
200
7
SD
PIN5
PIN5
Output Leakage Current, SHDN
Maximum Shutdown Pin Current
Gain Bandwidth Product
V
V
= 2V, No Load (Note 6)
= 32V, No Load (Note 5)
●
●
5
µA
µA
kHz
kHz
PIN5
PIN5
200
GBW
SR
f = 1kHz (Note 5)
110
60
200
●
●
Slew Rate
A = –1, R = (Note 7)
∞
0.035
0.015
0.07
V/µs
V/µs
V
L
±15V ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating temperature range of –40°C ≤ TA ≤ 125°C.
VS = ±15V, VCM = 0V, VOUT = 0V, VSHDN = V– unless otherwise specified. (Note 4)
LT1636H
TYP
SYMBOL
PARAMETER
CONDITIONS
MIN
MAX
UNITS
V
Input Offset Voltage
100
550
3.4
µV
OS
●
●
●
●
●
mV
Input Offset Voltage Drift (Note 9)
Input Offset Current
3
11
5
µV/°C
nA
I
I
OS
Input Bias Current
50
nA
B
CMRR
Common Mode Rejection Ratio
Large-Signal Voltage Gain
V
= –14.7V to 29V
72
dB
CM
A
VOL
V = ±14V, R = 10k
O
100
4
500
V/mV
V/mV
L
●
V
O
Output Voltage Swing
No Load
●
●
±14.8
±14.3
V
V
I
= ±2.5mA
OUT
PSRR
Power Supply Rejection Ratio
Minimum Supply Voltage
Supply Current
V = ±1.35V to ±22V
●
●
84
dB
V
S
±1.35
I
I
50
70
100
µA
µA
S
●
●
Positive Supply Current, SHDN
Shutdown Pin Current
V
PIN5
= –20V, V = ±22V, No Load
40
µA
S
V
PIN5
V
PIN5
= –21.7V, V = ±22V, No Load
●
●
200
10
nA
µA
SHDN
S
= –20V, V = ±22V, No Load
S
Maximum Shutdown Pin Current
Output Leakage Current, SHDN
Shutdown Pin Input Low Voltage
Shutdown Pin Input High Voltage
Gain Bandwidth Product
V
V
= 32V, V = ±22V
●
●
●
●
200
100
µA
µA
V
PIN5
PIN5
S
= –20V, V = ±22V, No Load
S
V
V
V = ±22V
S
–21.7
L
V = ±22V
S
–20
V
H
GBW
f = 1kHz
125
75
220
kHz
kHz
●
●
SR
Slew Rate
A = –1, R =
∞
, V = ± 10V
0.0375
0.02
0.075
V/µs
V/µs
V
L
O
Measured at V = ±5V
O
1636fc
6
LT1636
ELECTRICAL CHARACTERISTICS
sampled at these temperatures. The LT1636I is guaranteed to meet
specified performance from –40°C to 85°C. The LT1636H is guaranteed to
meet specified performance from –40°C to 125°C.
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: A heat sink may be required to keep the junction temperature
Note 5: V = 5V limits are guaranteed by correlation to V = 3V and
below absolute maximum. The θ specified for the DD package is with
S
S
JA
V = ±15V or V = ±22V tests.
minimal PCB heat spreading metal. A significant reduction in θ can be
S
S
JA
obtained with expanded PCB metal area on all layers of a board.
Note 6: V = 3V limits are guaranteed by correlation to V = 5V and
S
S
V = ±15V or V = ±22V tests.
Note 3: The LT1636C and LT1636I are guaranteed functional over the
operating temperature range of –40°C to 85°C. The LT1636H is
guaranteed functional over the operating temperature range of –40°C to
125°C.
Note 4: The LT1636C is guaranteed to meet specified performance from
0°C to 70°C. The LT1636C is designed, characterized and expected to
meet specified performance from –40°C to 85°C but is not tested or QA
S
S
Note 7: Guaranteed by correlation to slew rate at V = ±15V and GBW at
S
V = 3V and V = ±15V tests.
S
S
Note 8: This specification implies a typical input offset voltage of 600µV at
= 44V and a maximum input offset voltage of 3mV at V = 44V.
V
CM
CM
Note 9: This parameter is not 100% tested.
U W
TYPICAL PERFOR A CE CHARACTERISTICS
Input Bias Current
vs Common Mode Voltage
Supply Current vs Supply Voltage
Minimum Supply Voltage
300
200
5000
3000
1000
80
70
60
50
40
30
20
10
0
V
= 5V, 0V
S
T
= 25°C
A
100
40
30
0
T
= 125°C
A
T
A
= –55°C
–100
–200
–300
T
= –55°C
20
A
T
= 125°C
T
= –55°C
A
A
10
T
= 125°C
A
T
A
= 25°C
0
T
= 25°C
A
–10
0
5
10 15 20 25 30 35 40 45
TOTAL SUPPLY VOLTAGE (V)
1636 G01
0
1
2
3
4
5
4.0
4.4
4.8
50
5.2 10 20 30 40
TOTAL SUPPLY VOLTAGE (V)
COMMON MODE VOLTAGE (V)
1636 G02
1636 G03
Output Saturation Voltage
Output Saturation Voltage
Output Saturation Voltage
vs Input Overdrive
vs Load Current (Output High)
vs Load Current (Output Low)
1
10
1
100
V
V
= 5V
OD
V
V
= 5V
OD
V
= ± 2.5V
S
S
S
90
80
70
60
50
40
30
20
10
0
= 30mV
= 30mV
NO LOAD
0.1
0.1
T
= 125°C
A
T
= 125°C
A
T
= 25°C
A
T = 25°C
A
0.01
OUTPUT HIGH
OUTPUT LOW
T
= –55°C
A
T
= –55°C
A
0.001
0.01
0.0001 0.001 0.01
0.1
1
10
100
0
10 20 30 40 50 60 70 80 90 100
INPUT OVERDRIVE (mV)
1636 G06
0.0001 0.001 0.01
0.1
1
10
100
SINKING LOAD CURRENT (mA)
SOURCING LOAD CURRENT (mA)
1636 G05
1636 G04
1636fc
7
LT1636
U W
TYPICAL PERFOR A CE CHARACTERISTICS
Noise Voltage Density
vs Frequency
0.1Hz to 10Hz Noise Voltage
Input Noise Current vs Frequency
80
70
60
50
40
30
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
V
S
= ± 2.5V
1
10
100
1000
0
1
2
3
4
5
6
7
8
9
10
1
10
100
1000
TIME (SEC)
FREQUENCY (Hz)
FREQUENCY (Hz)
1635 G09
1636 G08
1636 G07
Open-Loop Gain and Phase Shift
vs Frequency
Gain-Bandwidth Product
vs Temperature
Slew Rate vs Temperature
70
60
50
40
100
80
260
240
220
200
0.12
0.11
0.10
0.09
0.08
0.07
0.06
0.05
0.04
V
= ±2.5V
S
f = 1kHZ
RISING, V = ±1.5V
S
60
RISING, V = ±15V
S
40
V
= ±15V
S
PHASE
30
20
20
0
FALLING, V = ±15V
S
GAIN
V
= ±1.5V
S
10
0
–20
–40
–60
–80
–100
180
160
140
FALLING, V = ±1.5V
S
–10
–20
–30
1k
10k
100k
1M
–50
25
50
75
100 125
–50 –25
0
25
50
75 100 125
–25
0
FREQUENCY (Hz)
TEMPERATURE (°C)
TEMPERATURE (°C)
1636 G10
1636 G11
1636 G12
Gain-Bandwidth Product and
Phase Margin vs Supply Voltage
CMRR vs Frequency
PSRR vs Frequency
120
110
100
90
80
70
300
280
50
40
V
= ±2.5V
R
= 10k
S
L
f = 1kHz
60
POSITIVE SUPPLY
PHASE MARGIN
50
260
V
S
= ±15V
80
40
70
30
240
220
V
= ±1.5V
S
60
20
GAIN BANDWIDTH
NEGATIVE SUPPLY
30
20
50
10
40
0
200
180
30
–10
–20
20
1K
10K
100K
1k
10k
100k
0
5
10 15 20 25 30 35 40 45
TOTAL SUPPLY VOLTAGE (V)
FREQUENCY (Hz)
FREQUENCY (Hz)
1636 G14
1636 G15
1636 G13
1636fc
8
LT1636
U W
TYPICAL PERFOR A CE CHARACTERISTICS
Gain-Bandwidth Product and
Undistorted Output Swing
vs Frequency
Phase Margin vs Load Resistance
Output Impedance vs Frequency
10k
1k
450
400
350
300
250
200
150
100
50
80
70
60
50
40
30
20
10
0
35
30
25
20
15
10
5
V
= ± 2.5V
V
S
= ± 2.5V
S
DISTORTION ≤ 1%
V
V = ±15V
s
A
= 1
A
V
= 100
PHASE MARGIN
100
10
A
= 10
= 1
V
A
V
1
V = ± 2.5V
s
GAIN BANDWIDTH
0.1
0
1k
10k
LOAD RESISTANCE (Ω)
100k
100
1k
10k
100k
100
1k
10k
100k
FREQUENCY (Hz)
FREQUENCY (Hz)
1635 G17
1635 G18
1636 G16
Capacitive Load Handling,
Settling Time to 0.1%
vs Output Step
Total Harmonic Distortion + Noise
vs Frequency
Overshoot vs Capacitive Load
100
90
10
8
10
1
V
I
= ±2.5V
SOURCE
NO OUTPUT COMPENSATION
V
S
= ±15V
V
V
V
= 3V, 0V
= 2V
CM
= 50k
S
S
OUT
= 40µA
P-P
A
V
= 1
= 1.2V
80
6
R
L
A
V
= –1
70
4
A
= 1
A = 2
V
V
60
50
2
0
0.1
40
30
20
10
0
–2
–4
–6
–8
A
V
= –1
0.01
A
V
= 5
A
V
= 10
A
= 1
V
A
= –1
V
A
= 1
V
–10
0.001
10
100
1000
10000
100 160
120 140
0
80
20 40 60
10
100
1k
10k
SETTLING TIME (µs)
FREQUENCY (Hz)
CAPACITIVE LOAD (pF)
1636 G20
1636 G19
1636 G21
Total Harmonic Distortion + Noise
vs Load Resistance
Total Harmonic Distortion + Noise
vs Output Voltage
10
1
10
1
R = 10k
L
V
A
V
= 3V TOTAL
= 1
S
V
V
= HALF SUPPLY
CM
f = 1kHz
= 2V AT 1kHz
IN
P-P
V
V
= ±1.5V
= ±1V
S
IN
A
S
= –1
A = 1
V
V = ±1.5V
S
V
V
= ±1.5V
V
= 3V, 0V
S
0.1
0.1
V
= 0.5V TO 2.5V
IN
A
V
V
S
= –1
= 3V, 0V
V
= 3V, 0V
0.01
0.01
S
V
IN
= 0.2V TO 2.2V
A
V
V
S
= 1
= 3V, 0V
0.001
0.001
0
1
2
3
100
1k
10k
100k
OUTPUT VOLTAGE (V
)
P-P
LOAD RESISTANCE TO GROUND (Ω)
1636 G23
1636 G22
1636fc
9
LT1636
TYPICAL PERFOR A CE CHARACTERISTICS
U W
Open-Loop Gain
Large-Signal Response
Small-Signal Response
A
B
C
A: RL = 2k
B: RL = 10k
C: RL = 50k
B
C
A
1636 G24
1636 G25
1636 G26
0V
10V
VS = ±15V –10V
VS = ±15V
VS = ±15V
AV = 1
OUTPUT VOLTAGE (5V/DIV)
A
V = –1
U
W U U
APPLICATIONS INFORMATION
Supply Voltage
cause the voltage at which operation switches from the
PNPstagetotheNPNstagetomovetowardsV+. Theinput
offset voltage of the NPN stage is untrimmed and is
typically 600µV.
The positive supply pin of the LT1636 should be bypassed
with a small capacitor (about 0.01µF) within an inch of the
pin. When driving heavy loads an additional 4.7µF electro-
lytic capacitor should be used. When using split supplies,
the same is true for the negative supply pin.
A Schottky diode in the collector of each NPN transistor of
the NPN input stage allows the LT1636 to operate with
either or both of its inputs above V+. At about 0.3V above
V+ the NPN input transistor is fully saturated and the input
bias current is typically 3µA at room temperature. The
input offset voltage is typically 600µV when operating
aboveV+.TheLT1636willoperatewithitsinput44Vabove
V– regardless of V+.
The LT1636 is protected against reverse battery voltages
up to 27V. In the event a reverse battery condition occurs,
the supply current is less than 1nA.
When operating the LT1636 on total supplies of 20V or
more, the supply must not be brought up faster than 1µs.
This is especially true if low ESR bypass capacitors are
used. A series RLC circuit is formed from the supply lead
inductance and the bypass capacitor. 5Ω of resistance in
the supply or the bypass capacitor will dampen the tuned
circuit enough to limit the rise time.
The inputs are protected against excursions as much as
22V below V– by an internal 1k resistor in series with each
input and a diode from the input to the negative supply.
Thereisnooutputphasereversalforinputsupto5Vbelow
V–. There are no clamping diodes between the inputs and
the maximum differential input voltage is 44V.
Inputs
The LT1636 has two input stages, NPN and PNP (see
Simplified Schematic), resulting in three distinct operat-
ingregionsasshownintheInputBiasCurrentvsCommon
Mode typical performance curve.
For input voltages about 0.8V or more below V+, the PNP
input stage is active and the input bias current is typically
–4nA. When the input voltage is about 0.5V or less from
V+, the NPN input stage is operating and the input bias
current is typically 10nA. Increases in temperature will
Output
The output voltage swing of the LT1636 is affected by in-
put overdrive as shown in the typical performance curves.
When monitoring voltages within 100mV of V+, gain
should be taken to keep the output from clipping.
The output of the LT1636 can be pulled up to 27V beyond
V+ with less than 1nA of leakage current, provided that V+
is less than 0.5V.
1636fc
10
LT1636
U
W U U
APPLICATIONS INFORMATION
The normally reverse biased substrate diode from the
outputtoV– willcauseunlimitedcurrentstoflowwhenthe
output is forced below V–. If the current is transient and
limited to 100mA, no damage will occur.
returned to ground. The typical performance photo of
Open-Loop Gain for various loads shows the details.
Shutdown
The LT1636 can be shut down two ways: using the
shutdownpinorbringingV+ towithin0.5VofV–.WhenV+
is brought to within 0.5V of V– both the supply current and
output leakage current drop to less than 1nA. When the
shutdown pin is brought 1.2V above V–, the supply
current drops to about 4µA and the output leakage current
islessthan1µA,independentofV+.Ineithercasetheinput
bias current is less than 0.1nA (even if the inputs are 44V
above the negative supply).
The shutdown pin can be taken up to 32V above V–. The
shutdown pin can be driven below V–, however the pin
currentthroughthesubstratediodeshouldbelimitedwith
an external resistor to less than 10mA.
The LT1636 is internally compensated to drive at least
200pF of capacitance under any output loading condi-
tions. A 0.22µF capacitor in series with a 150Ω resistor
between the output and ground will compensate these
amplifiers for larger capacitive loads, up to 10,000pF, at
all output currents.
Distortion
There are two main contributors of distortion in op amps:
output crossover distortion as the output transitions from
sourcing to sinking current and distortion caused by
nonlinear common mode rejection. Of course, if the op
amp is operating inverting there is no common mode
induced distortion. When the LT1636 switches between
input stages there is significant nonlinearity in the CMRR.
Lower load resistance increases the output crossover
distortion, but has no effect on the input stage transition
distortion. For lowest distortion the LT1636 should be
operated single supply, with the output always sourcing
current and with the input voltage swing between ground
and (V+ – 0.8V). See the Typical Performance Character-
istics curves.
Input Offset Nulling
The input offset voltage can be nulled by placing a 10k
potentiometer between Pins 1 and 8 with its wiper to V–
(see Figure 1). The null range will be at least ±1mV.
LT1636
8
1
10k
Gain
The open-loop gain is less sensitive to load resistance
when the output is sourcing current. This optimizes per-
formance in single supply applications where the load is
–
V
1636 F01
Figure 1. Input Offset Nulling
1636fc
11
LT1636
U
TYPICAL APPLICATIONS
MUX Amplifier
MUX Amplifier Waveforms
5V
+
V
IN1
LT1636
SHDN
V
OUT
–
5V
+
V
IN2
LT1636
SHDN
–
VS = 5V
IN1 = 1.2kHz AT 4VP-P, VIN2 = 2.4kHz AT 2VP-P
INPUT SELECT = 120Hz AT 5VP-P
V
INPUT
SELECT
1636 TA05
74HC04
Optional Output Compensation for
Capacitive Loads Greater Than 200pF
V
+
IN
LT1636
C
≤ 10,000pF
L
–
0.22µF
150Ω
1636 TA09
1636fc
12
LT1636
W
W
SI PLIFIED SCHEMATIC
+
7
V
Q1
Q13
Q19
Q20
Q25
D1
D2
Q23
R3
R2
1k
D3
30k
–IN
+IN
2
3
Q21
Q22
Q24
SHDN
5
Q2
2µA
R4
1k
6
OUT
Q9
Q10
Q14 Q15
Q18
R1
1M
Q11
Q12
Q16
Q17
Q26
Q3
Q4
R5
40k
R6
40k
Q6
Q8
D4
D5
Q5
Q7
NULL
1
8
NULL
R7
300Ω
R8
300Ω
–
4
V
1636 SS
1636fc
13
LT1636
PACKAGE DESCRIPTION
U
DD Package
8-Lead Plastic DFN (3mm × 3mm)
(Reference LTC DWG # 05-08-1698)
R = 0.115
0.38 ± 0.10
TYP
5
8
0.675 ±0.05
3.5 ±0.05
2.15 ±0.05 (2 SIDES)
1.65 ±0.05
3.00 ±0.10
(4 SIDES)
1.65 ± 0.10
(2 SIDES)
PIN 1
TOP MARK
PACKAGE
OUTLINE
(DD8) DFN 0203
4
1
0.28 ± 0.05
0.75 ±0.05
0.200 REF
0.28 ± 0.05
0.50 BSC
0.50
BSC
2.38 ±0.05
(2 SIDES)
2.38 ±0.10
(2 SIDES)
0.00 – 0.05
BOTTOM VIEW—EXPOSED PAD
NOTE:
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION OF (WEED-1)
2. ALL DIMENSIONS ARE IN MILLIMETERS
3. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE
4. EXPOSED PAD SHALL BE SOLDER PLATED
MS8 Package
8-Lead Plastic MSOP
(Reference LTC DWG # 05-08-1660)
0.889 ± 0.127
(.035 ± .005)
5.23
(.206)
MIN
3.2 – 3.45
(.126 – .136)
3.00 ± 0.102
(.118 ± .004)
(NOTE 3)
0.52
(.206)
REF
0.65
(.0256)
BSC
0.42 ± 0.04
(.0165 ± .0015)
8
7 6
5
TYP
RECOMMENDED SOLDER PAD LAYOUT
3.00 ± 0.102
(.118 ± .004)
NOTE 4
4.90 ± 0.15
(1.93 ± .006)
DETAIL “A”
0.254
(.010)
0° – 6° TYP
GAUGE PLANE
1
2
3
4
0.53 ± 0.015
(.021 ± .006)
1.10
(.043)
MAX
0.86
(.034)
REF
DETAIL “A”
0.18
(.077)
SEATING
PLANE
0.22 – 0.38
(.009 – .015)
TYP
0.13 ± 0.076
(.005 ± .003)
0.65
(.0256)
BSC
MSOP (MS8) 0802
NOTE:
1. DIMENSIONS IN MILLIMETER/(INCH)
2. DRAWING NOT TO SCALE
3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS.
MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS.
INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX
1636fc
14
LT1636
U
PACKAGE DESCRIPTION
N8 Package
8-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510)
.400*
(10.160)
MAX
8
7
6
5
4
.255 ± .015*
(6.477 ± 0.381)
1
2
3
.130 ± .005
.300 – .325
.045 – .065
(3.302 ± 0.127)
(1.143 – 1.651)
(7.620 – 8.255)
.065
(1.651)
TYP
.008 – .015
(0.203 – 0.381)
.120
.020
(0.508)
MIN
(3.048)
MIN
+.035
.325
–.015
.018 ± .003
(0.457 ± 0.076)
.100
(2.54)
BSC
+0.889
8.255
(
)
N8 1002
–0.381
NOTE:
INCHES
1. DIMENSIONS ARE
MILLIMETERS
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm)
S8 Package
8-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610)
.189 – .197
(4.801 – 5.004)
.045 ±.005
NOTE 3
.050 BSC
7
5
8
6
N
1
N
.245
MIN
.160 ±.005
.150 – .157
(3.810 – 3.988)
NOTE 3
.228 – .244
(5.791 – 6.197)
2
3
N/2
N/2
4
.030 ±.005
TYP
RECOMMENDED SOLDER PAD LAYOUT
1
2
3
.010 – .020
(0.254 – 0.508)
× 45°
.053 – .069
(1.346 – 1.752)
.004 – .010
(0.101 – 0.254)
.008 – .010
(0.203 – 0.254)
0°– 8° TYP
.016 – .050
(0.406 – 1.270)
.050
(1.270)
BSC
.014 – .019
(0.355 – 0.483)
TYP
NOTE:
INCHES
1. DIMENSIONS IN
(MILLIMETERS)
2. DRAWING NOT TO SCALE
3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)
SO8 0502
1636fc
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
LT1636
U
TYPICAL APPLICATIONS
Over-The-Top Comparator with Hysteresis
Self-Buffered Micropower Reference
1M
4V TO 44V
3V TO 44V
10k
IN1
(0V TO 44V)
+
–
V
= 1.25V
≤ 10mA
V
LT1636
LT1636
OUT
OUT
OUT
I
+
–
1M
1N5711
1M
2N5087
2N5210
1M
10k
1M
IN2
(0V TO 44V)
0.1µF
LT1634-1.25
V
CC
100
HYSTERESIS =
1636 TA04
1636 TA03
Lamp Outage Detector
Over-The-Top Current Sense
5V TO 44V
3V
5V TO 44V
1M
R1
200Ω
LAMP
ON/OFF
100k
5k
5V
R
–
S
+
–
0.2Ω
0.5Ω
OUT
LT1636
LT1636
+
V
OUT
(0V TO 4.3V)
I
LOAD
R2
2k
V
OUT = 0V FOR GOOD BULB
3V FOR OPEN BULB
OUT
LOAD
I
=
LOAD
1636 TA08
(R )(R2/R1)
S
1636 TA07
RELATED PARTS
PART NUMBER
LT1078/LT1079
LT2078/LT2079
DESCRIPTION
COMMENTS
Input/Output Common Mode Includes Ground, 70µV V
and 2.5µV/°C Drift (Max), 200kHz GBW, 0.07V/µs Slew Rate
Dual/Quad 55µA Max, Single Supply, Precision Op Amps
Dual/Quad 17µA Max, Single Supply, Precison Op Amps
Dual/Quad Precision, Rail-to-Rail Input and Output Op Amps
OS(MAX)
LT1178/LT1179
LT2178/LT2179
Input/Output Common Mode Includes Ground, 70µV V
OS(MAX)
and 4µV/°C Drift (Max), 85kHz GBW, 0.04V/µs Slew Rate
475µV V , 500V/mV A , 400kHz GBW
LT1366/LT1367
LT1490/LT1491
OS(MAX)
VOL(MIN)
Dual/Quad Over-The-Top Micropower, Rail-to-Rail Input and
Output Op Amps
Single Supply Input Range: –0.4V to 44V, Micropower 50µA
per Amplifier, Rail-to-Rail Input and Output, 200kHz GBW
LT1637
Single Over-The-Top Micropower Rail-to-Rail Input and Output
Op Amp
1.1MHz, V Extends 44V above V ,
CM EE
Independent of V ; MSOP Package, Shutdown Function
CC
LT1638/LT1639
LT1782
Dual/Quad 1.2MHz Over-The-Top Micropower, Rail-to-Rail
Input and Output Op Amps
0.4V/µs Slew Rate, 230µA Supply Current per Amplifier
Micropower, Over-The-Top, SOT-23, Rail-to-Rail
Input and Output Op Amp
SOT-23, 800µV V , I = 55µA (Max),
OS(MAX) S
Gain-Bandwidth = 200kHz, Shutdown Pin
LT1783
1.2MHz, Over-The-Top, Micropower, Rail-to-Rail
Input and Output Op Amp
SOT-23, 800µV V , I = 300µA (Max),
Gain-Bandwidth = 1.2MHz, Shutdown Pin
OS(MAX)
S
1636fc
LT/LT 0505 REV C • PRINTED IN USA
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
16
●
●
© LINEAR TECHNOLOGY CORPORATION 1998
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
相关型号：
LT1636IMS8#PBF
LT1636 - Over-The-Top Micropower Rail-to-Rail Input and Output Op Amp; Package: MSOP; Pins: 8; Temperature Range: -40°C to 85°C
Linear
LT1636IMS8#TR
LT1636 - Over-The-Top Micropower Rail-to-Rail Input and Output Op Amp; Package: MSOP; Pins: 8; Temperature Range: -40°C to 85°C
Linear
LT1636IN8#PBF
LT1636 - Over-The-Top Micropower Rail-to-Rail Input and Output Op Amp; Package: PDIP; Pins: 8; Temperature Range: -40°C to 85°C
Linear
LT1636IS8#TRPBF
LT1636 - Over-The-Top Micropower Rail-to-Rail Input and Output Op Amp; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C
Linear
LT1637CDD#TR
LT1637 - 1.1MHz, 0.4V/us Over-The-Top Micropower, Rail-To-Rail Input and Output Op Amp; Package: DFN; Pins: 8; Temperature Range: 0°C to 70°C
Linear
LT1637CDD#TRPBF
LT1637 - 1.1MHz, 0.4V/us Over-The-Top Micropower, Rail-To-Rail Input and Output Op Amp; Package: DFN; Pins: 8; Temperature Range: 0°C to 70°C
Linear
©2020 ICPDF网 联系我们和版权申明