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LT1784CS5#TRMPBF

P1-P3P4-P6P7-P9P10-P12
LT1784
1
1784fa
TYPICAL APPLICATION
DESCRIPTION
2.5MHz, Over-The-Top
Low Power, Rail-to-Rail Input
and Output Op Amp in SOT-23
The LT
®
1784 is a 2.5MHz op amp available in the small
SOT-23 package that operates on all single and split supplies
with a total voltage of 2.5V to 18V. The amplifi er draws less
than 750µA of quiescent current and has reverse battery
protection, drawing negligible current for reverse supply
voltages up to 18V.
The input range of the LT1784 includes ground, and a
unique feature of this device is its Over-The-Top
®
opera-
tion capabilitity with either or both of its inputs above the
positive rail. The inputs handle 18V both differential and
common mode, independent of supply voltage. The input
stage incorporates phase reversal protection to prevent
false outputs from occurring even when the inputs are 9V
below the negative supply.
The LT1784 can drive loads up to 15mA and still maintain
rail-to-rail capability. A shutdown feature on the 6-lead
version can disable the part, making the output high
impedance and reducing quiescent current to 5µA. The
LT1784 op amp is available in the 5- and 6-lead SOT-23
packages. For applications requiring lower power, refer to
the LT1782 and LT1783 data sheets.
Programmable Gain, A
V
= 2, A
V
= 20, 100kHz Amplifi er
FEATURES
APPLICATIONS
n
Operates with Inputs Above V
+
n
Rail-to-Rail Input and Output
n
Gain Bandwidth Product: 2.5MHz
n
Slew Rate: 2.1V/µs
n
Low Input Offset Voltage: 3.5mV Max
n
High Voltage Gain: 1000V/mV
n
Single Supply Input Range: 0V to 18V
n
Specifi ed on 3V, 5V and ±5V Supplies
n
Reverse Battery Protection to 18V
n
Low Power: 750µA Supply Current Max
n
Output Shutdown on 6-Lead Version
n
High Output Current: 15mA Min
n
Operating Temperature Range: –40°C to 85°C
n
Low Profi le (1mm) ThinSOT™ Package
n
Portable Instrumentation
n
Battery-Powered Systems
n
Sensor Conditioning
n
Supply Current Sensing
n
MUX Amplifi ers
n
4mA to 20mA Transmitters
L, LT, LTC, LTM, Linear Technology, the Linear logo and Over-The-Top are registered
trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology
Corporation. All other trademarks are the property of their respective owners.
Programmable Gain Amplifi er
Frequency Response
–
+
LT1782
V
CC
SHDN
IN
OUT
1784 TA01a
V
EE
R2
9.09k
R1
10k
R3
1k
–
+
LT1784
V
CC
V
CC
A
V
= 2A
V
= 20
SHDN
V
EE
()
A
V
= 1+
R1 + R2
R3
()
OR 1+
R1
R2 + R3
FREQUENCY (Hz)
GAIN (dB)
30
25
20
15
10
5
0
–5
–10
–15
–20
1k 100k 1M 10M
1784 TA01b
10k
A
V
= 20
A
V
= 2
LT1784
2
1784fa
ABSOLUTE MAXIMUM RATINGS
Total Supply Voltage (V
+
to V
–
) .................................18V
Input Differential Voltage ..........................................18V
Input Pin Voltage to V
–
................................ +24V/–10V
Shutdown Pin Voltage Above V
–
..............................18V
Shutdown Pin Current .........................................±10mA
Output Short-Circuit Duration (Note 2) ............ Indefi nite
(Note 1)
4
5
3
1
OUT
V
–
+IN
V
+
–IN
TOP VIEW
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
2
+
–
T
JMAX
= 150°C, θ
JA
= 250°C/W
1
2
3
6
5
4
TOP VIEW
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
OUT
V
–
+IN
V
+
SHDN
–IN
+
–
T
JMAX
= 150°C, θ
JA
= 230°C/W
PIN CONFIGURATION
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE
LT1784CS5#PBF LT1784CS5#TRPBF LTJD 5-Lead Plastic TSOT-23 –40°C to 85°C
LT1784IS5#PBF LT1784IS5#TRPBF LTSN 5-Lead Plastic TSOT-23 –40°C to 85°C
LT1784CS6#PBF LT1784CS6#TRPBF LTIW 6-Lead Plastic TSOT-23 –40°C to 85°C
LT1784IS6#PBF LT1784IS6#TRPBF LTIX 6-Lead Plastic TSOT-23 –40°C to 85°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to:
http://www.linear.com/tapeandreel/
Operating Temperature Range (Note 10)..–40°C to 85°C
Specifi ed Temperature Range (Note 11) ..–40°C to 85°C
Junction Temperature ........................................... 150°C
Storage Temperature Range ..................–65°C to 150°C
Lead Temperature (Soldering, 10 sec) .................. 300°C
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage T
A
= 25°C
0°C ≤ T
A
≤ 70°C
–40°C ≤ T
A
≤ 85°C
l
l
1.5 3.5
4.2
4.5
mV
mV
mV
ΔV
OS
/ΔT
Input Offset Voltage Drift (Note 7) –40°C ≤ T
A
≤ 85°C
l
5 15 µV/°C
I
OS
Input Offset Current
V
CM
= 18V (Note 3)
l
l
25 50
50
nA
µA
ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the specifi ed
temperature range, otherwise specifi cations are at T
A
= 25°C. V
S
= 3V, 0V; V
S
= 5V, 0V, V
CM
= V
OUT
= half supply, for the 6-lead part
V
PIN5
= 0V, pulse power tested unless otherwise specifi ed.
LT1784
3
1784fa
ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the specifi ed
temperature range, otherwise specifi cations are at T
A
= 25°C. V
S
= 3V, 0V; V
S
= 5V, 0V, V
CM
= V
OUT
= half supply, for the 6-lead part
V
PIN5
= 0V, pulse power tested unless otherwise specifi ed.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
I
B
Input Bias Current
V
CM
= 18V (Note 3)
SHDN or V
S
= 0V, V
CM
= 0V to 18V
l
l
250
225
0.1
500
400
nA
µA
nA
ΔI
B
/ΔT
Input Bias Current Drift –40°C ≤ T
A
≤ 85°C
l
0.4 nA/°C
Input Noise Voltage 0.1Hz to 10Hz 1.5 µV
P-P
e
n
Input Noise Voltage Density f = 10kHz 25 nV/√Hz
i
n
Input Noise Current Density f = 10kHz 0.3 pA/√Hz
R
IN
Input Resistance Differential
Common Mode, V
CM
= 0V to (V
CC
– 1.2V)
Common Mode, V
CM
= 0V to 18V
100
45
200
150
80
k
M
k
C
IN
Input Capacitance 5pF
V
CM
Input Voltage Range
l
018V
CMRR Common Mode Rejection Ratio
(Note 3)
V
CM
= 0V to V
CC
– 1.2V
V
CM
= 0V to 18V (Note 6)
l
l
84
60
95
70
dB
dB
PSRR Power Supply Rejection Ratio V
S
= 3V to 12.5V, V
CM
= V
O
= 1V
l
90 100 dB
A
VOL
Large-Signal Voltage Gain V
S
= 3V, V
O
= 500mV to 2.5V, R
L
= 10k
V
S
= 3V, 0°C ≤ T
A
≤ 70°C
V
S
= 3V, –40°C ≤ T
A
≤ 85°C
l
l
133
90
60
1000 V/mV
V/mV
V/mV
V
S
= 5V, V
O
= 500mV to 4.5V, R
L
= 10k
V
S
= 5V, 0°C ≤ T
A
≤ 70°C
V
S
= 5V, –40°C ≤ T
A
≤ 85°C
l
l
266
180
120
1000 V/mV
V/mV
V/mV
V
OL
Output Voltage Swing LOW No Load
I
SINK
= 5mA
V
S
= 5V, I
SINK
= 10mA
l
l
l
4
200
350
10
400
600
mV
mV
mV
V
OH
Output Voltage Swing HIGH V
S
= 3V, No Load
V
S
= 3V, I
SOURCE
= 3mA
l
l
2.885
2.600
2.93
2.8
V
V
V
S
= 5V, No Load
V
S
= 5V, I
SOURCE
= 10mA
l
l
4.885
4.400
4.93
4.7
V
V
I
SC
Short-Circuit Current (Note 2) V
S
= 3V, Short to GND
V
S
= 3V, Short to V
CC
4
15
7.5
30
mA
mA
V
S
= 5V, Short to GND
V
S
= 5V, Short to V
CC
12.5
20.0
22
40
mA
mA
Minimum Supply Voltage
l
2.5 2.7 V
Reverse Supply Voltage I
S
= –100µA
l
18 V
I
S
Supply Current
(Note 4)
l
500 750
900
µA
µA
Supply Current, Shutdown V
PIN5
= 2V, No Load (Note 8)
l
718 µA
I
SHDN
SHDN Pin Current V
PIN5
= 0.3V (On), No Load (Note 8)
V
PIN5
= 2V (Shutdown), No Load (Note 8)
V
PIN5
= 5V (Shutdown), No Load (Note 8)
l
l
0.5
2.0
5.0
8
nA
µA
µA
Output Leakage Current, Shutdown V
PIN5
= 2V, No Load (Note 8)
l
0.05 1 µA
Maximum SHDN Pin Current V
PIN5
= 18V, No Load (Note 8)
l
10 30 µA
V
IL
SHDN Pin Input Low Voltage (Note 8)
l
0.3 V
V
IH
SHDN Pin Input High Voltage (Note 8)
l
2V
t
ON
Turn-On Time V
PIN5
= 5V to 0V, R
L
= 10k (Note 8) 18 µs
t
OFF
Turn-Off Time V
PIN5
= 0V to 5V, R
L
= 10k (Note 8) 2.2 µs
P1-P3P4-P6P7-P9P10-P12

LT1784CS5#TRMPBF

Mfr. #:
Buy LT1784CS5#TRMPBF
Manufacturer:
Analog Devices Inc.
Description:
Operational Amplifiers - Op Amps 2.5MHz, Over-The-Top L Pwr, R2R In & Out
Lifecycle:
New from this manufacturer.
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