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LT1637CDD#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
1
LT1637
1637fd
The LT
®
1637 is a rugged op amp that operates on all single
and split supplies with a total voltage of 2.7V to 44V. The
LT1637 has a gain-bandwidth product of 1.1MHz while
drawing less than 250µA of quiescent current. The LT1637
can be shut down, making the output high impedance and
reducing the quiescent current to only 3µA. The LT1637 is
reverse supply protected: it draws virtually no current for re-
verse supply up to 25V. The input range of the LT1637 in-
cludes both supplies and the output swings to both supplies.
Unlike most micropower op amps, the LT1637 can drive
heavy loads; its rail-to-rail output drives 25mA. The LT1637
is unity-gain stable into all capacitive loads up to 4700pF
when optional 0.22µF and 150Ω compensation is used.
The LT1637 has a unique input stage that operates and
remains high impedance when above the positive supply.
The inputs take 44V both differential and common mode,
even when operating on a 3V supply. 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 V
EE
or 44V above V
EE
, independent of V
CC
.
The LT1637 op amp is available in the 8-pin MSOP, PDIP
and SO packages. For space limited applications, the
LT1637 is available in a 3mm × 3mm × 0.8mm dual fine
pitch leadless package (DFN).
■
Battery or Solar Powered Systems:
Portable Instrumentation
Sensor Conditioning
■
Supply Current Sensing
■
Battery Monitoring
■
MUX Amplifiers
■
4mA to 25mA Transmitters
■
Operates with Inputs Above V
+
■
Rail-to-Rail Input and Output
■
Micropower: 250µA Supply Current Max
■
Operating Temperature Range: – 55°C to 125°C
■
Gain-Bandwidth Product: 1.1MHz
■
Slew Rate: 0.4V/µs
■
Low Input Offset Voltage: 350µV Max
■
Single Supply Input Range: –0.4V to 44V
■
High Output Current: 25mA Min
■
Specified on 3V, 5V and ±15V Supplies
■
Output Shutdown
■
Output Drives 4700pF with Output Compensation
■
Reverse Battery Protection to 25V
■
High Voltage Gain: 800V/mV
■
High CMRR: 110dB
■
Available in 8-Lead MSOP, PDIP and SO Packages;
and a Tiny (3mm × 3mm × 0.8mm) DFN Package
Over-The-Top
®
Current Source with Shutdown
SHDN
I
OUT
LT1004-1.24.7µF
2k
*OPTIONAL FOR LOW OUTPUT CURRENTS,
R* = R
R
4V TO 44V
TP0610
1637 TA01
R*
–
+
LT1637
I
OUT
=
e.g., 10mA = 120Ω
1.2
R
+
V
SHDN
6V
4V
2V
0V
10mA
5mA
0mA
I
OUT
100µs/DIV
Switchable Precision Current Source
Current Source Timing
APPLICATIO S
U
TYPICAL APPLICATIO
U
1.1MHz, 0.4V/µs
Over-The-Top Micropower, Rail-To-Rail
Input and Output Op Amp
FEATURES
DESCRIPTIO
U
1637 TA01b
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
Over-The-Top is a registered trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
2
LT1637
1637fd
ORDER PART
NUMBER
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)
LT1637C/LT1637I .............................. –40°C to 85°C
LT1637H .......................................... –40°C to 125°C
LT1637MP......................................... –55°C to 125°C
*The temperature grades are identified by a label on the shipping container. Consult factory for parts specified with wider operating temperature ranges.
(Note 1)
ORDER PART
NUMBER
S8 PART
MARKING
1637
1637I
1637H
1637MP
LT1637CN8
LT1637CS8
LT1637IN8
LT1637IS8
LT1637HS8
LT1637MPS8
1
2
3
4
8
7
6
5
TOP VIEW
NULL
V
+
OUT
SHDN
NULL
–IN
+IN
V
–
S8 PACKAGE
8-LEAD PLASTIC SO
N8 PACKAGE
8-LEAD PDIP
T
JMAX
= 150°C, θ
JA
= 150°C/W (N8)
T
JMAX
= 150°C, θ
JA
= 190°C/W (S8)
PACKAGE/ORDER I FOR ATIO
UUW
ABSOLUTE AXI U RATI GS
W
WW
U
Specified Temperature Range (Note 4)
LT1637C/LT1637I .............................. –40°C to 85°C
LT1637H .......................................... –40°C to 125°C
LT1637MP......................................... –55°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
Lead Temperature (Soldering, 10 sec).................. 300°C
1
2
3
4
NULL
–IN
+IN
V
–
8
7
6
5
NULL
V
+
OUT
SHDN
TOP VIEW
MS8 PACKAGE
8-LEAD PLASTIC MSOP
MS8 PART*
MARKING
LTIE
LTIE
LT1637CMS8
LT1637IMS8
T
JMAX
= 150°C, θ
JA
= 250°C/W
ORDER PART
NUMBER
DD PART*
MARKING
LAAK
LAAK
LT1637CDD
LT1637IDD
TOP VIEW
DD PACKAGE
8-LEAD (3mm × 3mm) PLASTIC DFN
5
6
7
8
4
3
2
1NULL
–IN A
+IN A
V
–
NULL
V
+
OUT
SHDN
LT1637C/LT1637I
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage N8, S8 Packages 100 350 µV
0°C ≤ T
A
≤ 70°C ● 550 µV
–40°C ≤ T
A
≤ 85°C ● 700 µV
MS8 Package 100 350 µV
0°C ≤ T
A
≤ 70°C ● 750 µV
–40°C ≤ T
A
≤ 85°C ● 1100 µV
DD Package 125 550 µV
0°C ≤ T
A
≤ 70°C ● 950 µV
–40°C ≤ T
A
≤ 85°C ● 1100 µV
The ● denotes the specifications which apply over the full operating temperature range of –40°C ≤ T
A
≤ 85°C, otherwise
specifications are at T
A
= 25°C. V
S
= 3V, 0V; V
S
= 5V, 0V; V
SHDN
= V
–
,V
CM
= V
OUT
= half supply unless otherwise specified. (Note 4)
3V 5VA
U
D ELECTRICAL CHARACTERISTICS
T
JMAX
= 125°C, θ
JA
= 160°C/W (NOTE 2)
UNDERSIDE METAL CONNECTED TO V
–
3
LT1637
1637fd
Input Offset Voltage Drift (Note 9) N8, S8 Packages, – 40°C ≤ T
A
≤ 85°C ● 13µV/°C
MS8 Package, – 40°C ≤ T
A
≤ 85°C ● 26µV/°C
DDPackage, – 40°C ≤ T
A
≤ 85°C ● 26µV/°C
I
OS
Input Offset Current ● 0.4 6.0 nA
V
CM
= 44V (Note 5) ● 2.5 µA
I
B
Input Bias Current ● 20 50 nA
V
CM
= 44V (Note 5) ● 23 60 µA
V
S
= 0V 0.1 nA
Input Noise Voltage 0.1Hz to 10Hz 0.6 µV
P-P
e
n
Input Noise Voltage Density f = 1kHz 27 nV/√Hz
i
n
Input Noise Current Density f = 1kHz 0.08 pA/√Hz
R
IN
Input Resistance Differential 1 2.6 MΩ
Common Mode, V
CM
= 0V to 44V 0.7 1.4 MΩ
C
IN
Input Capacitance 4pF
Input Voltage Range ● 044V
CMRR Common Mode Rejection Ratio V
CM
= 0V to (V
CC
– 1V) ● 88 110 dB
(Note 5) V
CM
= 0V to 44V (Note 8) ● 80 98 dB
A
VOL
Large-Signal Voltage Gain V
S
= 3V, V
O
= 500mV to 2.5V, R
L
= 10k 150 400 V/mV
V
S
= 3V, 0°C ≤ T
A
≤ 70°C ● 100 V/mV
V
S
= 3V, – 40°C ≤ T
A
≤ 85°C ● 75 V/mV
V
S
= 5V, V
O
= 500mV to 4.5V, R
L
= 10k 300 800 V/mV
V
S
= 5V, 0°C ≤ T
A
≤ 70°C ● 200 V/mV
V
S
= 5V, – 40°C ≤ T
A
≤ 85°C ● 150 V/mV
V
OL
Output Voltage Swing LOW No Load ● 38 mV
I
SINK
= 5mA ● 325 700 mV
V
S
= 5V, I
SINK
= 10mA ● 580 1300 mV
V
OH
Output Voltage Swing HIGH V
S
= 3V, No Load ● 2.94 2.975 V
V
S
= 3V, I
SOURCE
= 5mA ● 2.25 2.67 V
V
S
= 5V, No Load ● 4.94 4.975 V
V
S
= 5V, I
SOURCE
= 10mA ● 3.80 4.45 V
I
SC
Short-Circuit Current (Note 2) V
S
= 3V, Short Output to Ground 10 14 mA
V
S
= 3V, Short Output to V
CC
15 45 mA
V
S
= 5V, Short Output to Ground 15 22 mA
V
S
= 5V, Short Output to V
CC
15 60 mA
PSRR Power Supply Rejection Ratio V
S
= 3V to 12.5V, V
CM
= V
O
= 1V ● 90 98 dB
Minimum Supply Voltage ● 2.7 V
Reverse Supply Voltage I
S
= –100µA ● 25 40 V
I
S
Supply Current 190 250 µA
(Note 6)
● 295 µA
Supply Current, SHDN V
PIN5
= 2V, No Load (Note 6) ● 312 µA
I
SHDN
Shutdown Pin Current V
PIN5
= 0.3V, No Load (Note 6) ● 0.2 15 nA
V
PIN5
= 2V, No Load (Note 5) ● 1.0 5 µA
V
PIN5
= 3.3V 2.5 µA
V
PIN5
= 5V 4.3 µA
Output Leakage Current, SHDN V
PIN5
= 2V, No Load (Note 6) ● 0.02 1 µA
LT1637C/LT1637I
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
The ● denotes the specifications which apply over the full operating temperature range of –40°C ≤ T
A
≤ 85°C, otherwise
specifications are at T
A
= 25°C. V
S
= 3V, 0V; V
S
= 5V, 0V; V
SHDN
= V
–
,V
CM
= V
OUT
= half supply unless otherwise specified. (Note 4)
3V 5VA
U
D ELECTRICAL CHARACTERISTICS
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LT1637CDD#TRPBF

Mfr. #:
Buy LT1637CDD#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
Precision Amplifiers Over-the-Top uP R-to-R I/O OA
Lifecycle:
New from this manufacturer.
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