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LT1673IS8#TRPBF

P1-P3P4-P6P7-P9P10-P12
1
LT1672/LT1673/LT1674
APPLICATIO S
U
FEATURES
DESCRIPTIO
U
TYPICAL APPLICATION
U
2µA Max, A
V
≥ 5 Single, Dual
and Quad Over-The-Top Precision
Rail-to-Rail Input and Output Op Amps
■
Gain of 5 Stable
■
Low Supply Current: 2
µ
A Max per Amplifier
■
Rail-to-Rail Input and Output
■
Low Offset Voltage: 375
µ
V Max
■
Over-The-Top
TM
Inputs Operate Above V
+
■
Gain Bandwidth Product: 12kHz
■
Wide Supply Range: 2.2V to 36V
■
Single Supply Input Range: –0.3V to 36V
■
Low Input Bias Current: 250pA
■
Low Input Offset Current: 20pA
■
High A
VOL
: 100V/mV Minimum Driving 100kΩ Load
■
Output Sources and Sinks 500µA Load Current
■
Reverse Battery Protected to 18V
The LT
®
1672/LT1673/LT1674 are ultralow power
(I
S
≤ 2µA) decompensated (A
V
≥ 5) op amps with preci-
sion specifications. The extremely low supply current is
combined with excellent amplifier specifications: input
offset voltage is 375µV maximum with a typical drift of
only 0.4µV/°C, input offset current is 100pA maximum. A
minimum open-loop gain (A
VOL
) of 100V/mV ensures that
gain errors are small. The devices’ characteristics change
little over the supply range of 2.2V to ±15V. Supply
rejection is 90dB and the common mode rejection ratio is
90dB. Operation is specified for 3V, 5V and ±15V supplies.
Reverse battery protection (–18V min) and inputs that
operate above the positive supply make the LT1672/
LT1673/LT1674 easy to use in harsh environments.
The low bias currents and offset current of the amplifier
permit the use of megohm level source resistors without
introducing significant errors. Voltage noise at 4µV
P-P
is
remarkably low considering the low supply current. For
unity gain stable versions of these amplifiers, see the
LT1494/LT1495/LT1496.
The LT1672 is available in the 8-pin MSOP, PDIP and SO
packages. The LT1673 is available in plastic 8-pin PDIP
and SO-8 packages with the standard dual op amp pinout.
The LT1674 is available in 14-pin PDIP and SO packages.
■
Battery- or Solar-Powered Systems
■
Portable Instrumentation
■
Remote Sensor Amplifier
■
Micropower Filter
■
Photodiode Amplifier
■
High Impedance Circuits
Single Supply, 60µW Precision Instrumentation Amplifier
TC V
OS
Distribution
, LTC and LT are registered trademarks of Linear Technology Corporation.
100k*
100k*
5V
5V
1M
0.0047µF
A
V
= 100
BANDWIDTH = 1kHz
CMRR = 65dB AT 120Hz
*500V TRANSIENT PROTECTION
TOTAL SUPPLY CURRENT = 12µA
+
–
1M
1M
100k
100k1M
1M
V
OUT
5V
LT1389-2.5
1672/3/4 TA01
LT1672
1000pF
110k
110k
V
IN1
V
IN2
–
+
–
+
1/2 LT1673
1/2 LT1673
TC V
OS
(µV/°C)
–1.5
UNITS
80
70
60
50
40
30
20
10
0
0.9
1672/3/4 TA02
–0.9 –0.3 0.3 1.5
120 AMPLIFIERS
V
S
= ±2.5V
–40°C to 85°C
Over-The-Top is a trademark of Linear Technology Corporation.
2
LT1672/LT1673/LT1674
S8 PART MARKING
Total Supply Voltage (V
+
to V
–
) .............................. 36V
Differential Input Voltage ......................................... 36V
Input Current ...................................................... ±10mA
Output Short-Circuit Duration.......................Continuous
Operating Temperature Range (Note 2) .. –40°C to 85°C
ORDER PART
NUMBER
T
JMAX
= 150°C, θ
JA
= 150°C/ W (N8)
T
JMAX
= 150°C, θ
JA
= 190°C/ W (S8)
1
2
3
4
8
7
6
5
TOP VIEW
OUT A
–IN A
+IN A
V
–
V
+
OUT B
–IN B
+IN B
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
B
A
S8 PART MARKING
1673
1673I
LT1672CMS8
LT1672IMS8
ABSOLUTE AXI U RATI GS
WWWU
PACKAGE/ORDER I FOR ATIO
UU
W
Specified Temperature Range (Note 3)... –40°C to 85°C
Storage Temperature Range ................. –65°C to 150°C
Junction Temperature...........................................150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
(Note 1)
TOP VIEW
S PACKAGE
14-LEAD PLASTIC SO
N PACKAGE
14-LEAD PDIP
1
2
3
4
5
6
7
14
13
12
11
10
9
8
OUT A
–IN A
+IN A
V
+
+IN B
–IN B
OUT B
OUT D
–IN D
+IN D
V
–
+IN C
–IN C
OUT C
A
B
D
C
ORDER PART
NUMBER
LT1674CN
LT1674CS
LT1674IN
LT1674IS
T
JMAX
= 150°C, θ
JA
= 110°C/ W (N)
T
JMAX
= 150°C, θ
JA
= 150°C/ W (S)
ORDER PART
NUMBER
MS8 PART MARKING
LTFH
LTFJ
LT1673CN8
LT1673CS8
LT1673IN8
LT1673IS8
1
2
3
4
NC
–IN
+IN
V
–
8
7
6
5
NC
V
+
OUT
NC
TOP VIEW
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 150°C, θ
JA
= 250°C/W
LT1672CN8
LT1672CS8
LT1672IN8
LT1672IS8
ORDER PART
NUMBER
1672
1672I
1
2
3
4
8
7
6
5
TOP VIEW
NC
V
+
OUT
NC
NC
–IN
+IN
V
–
S8 PACKAGE
8-LEAD PLASTIC SO
N8 PACKAGE
8-LEAD PDIP
T
JMAX
= 150°C, θ
JA
= 130°C/ W (N8)
T
JMAX
= 150°C, θ
JA
= 190°C/ W (S8)
Consult factory for parts specified with wider operating temperature ranges.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage V
S
= 5V 150 375 µV
V
S
= 3V 200 475 µV
V
S
= 5V, MS8 Package 150 475 µV
V
S
= 3V, MS8 Package 200 575 µV
I
B
Input Bias Current (Note 5) 250 1000 pA
V
CM
= 10V (Note 6) 180 360 nA
I
OS
Input Offset Current (Note 5) 20 100 pA
Input Noise Voltage 0.1Hz to 10Hz 4 µV
P-P
T
A
= 25°C, V
S
= 5V, 0V; V
S
= 3V, 0V; V
CM
= V
O
= half supply, unless otherwise noted.
ELECTRICAL CHARACTERISTICS
3
LT1672/LT1673/LT1674
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
e
n
Input Noise Voltage Density f = 100Hz 185 nV/√Hz
i
n
Input Noise Current Density f = 100Hz 10 fA/√Hz
A
VOL
Large-Signal Voltage Gain V
S
= 5V, V
O
= 0.25V to 4.5V, R
L
= 100k 100 500 V/mV
V
S
= 3V, V
O
= 0.25V to 2.5V, R
L
= 100k 50 250 V/mV
Input Voltage Range 0 36 V
CMRR Common Mode Rejection Ratio V
CM
= 0V to 4V, V
S
= 5V 90 106 dB
V
CM
= 0V to 10V, V
S
= 5V 74 95 dB
PSRR Power Supply Rejection Ratio V
S
= 2.2V to 12V, V
CM
= V
O
= 0.5V 90 99 dB
Minimum Operating Supply Voltage 2.1 2.2 V
V
OL
Output Voltage Swing LOW No Load 50 100 mV
I
SINK
= 100µA 210 410 mV
V
OH
Output Voltage Swing HIGH No Load V
+
– 0.07 V
+
– 0.035 V
I
SOURCE
= 100µAV
+
– 0.32 V
+
– 0.160 V
I
SC
Short-Circuit Current (Note 5) 0.7 1.3 mA
I
S
Supply Current per Amplifier (Note 6) 1.5 2 µA
Reverse Supply Voltage I
S
= 10µA per Amplifier –18 V
SR Slew Rate A
V
= –5, V
S
= ±10V 1.6 5 V/ms
GBW Gain Bandwidth Product f = 100Hz 12 kHz
T
A
= 25°C, V
S
= 5V, 0V; V
S
= 3V, 0V; V
CM
= V
O
= half supply, unless otherwise noted.
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the temperature range of 0°C ≤ T
A
≤ 70°C. V
S
= 5V, 0V; V
S
= 3V, 0V;
V
CM
= V
O
= half supply, unless otherwise noted. (Note 3)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage V
S
= 5V ● 175 425 µV
V
S
= 3V ● 225 525 µV
V
S
= 5V, MS8 Package ● 175 525 µV
V
S
= 3V, MS8 Package ● 225 625 µV
V
OS
TC Input Offset Voltage Drift (Note 4) ● 0.4 2 µV/°C
I
B
Input Bias Current (Note 5) ● 250 1200 pA
V
CM
= 10V (Note 6) ● 240 500 nA
I
OS
Input Offset Current (Note 5) ● 20 120 pA
A
VOL
Large-Signal Voltage Gain V
S
= 5V, V
O
= 0.25V to 4.5V, R
L
= 100k ● 75 280 V/mV
V
S
= 3V, V
O
= 0.25V to 2.5V, R
L
= 100k ● 40 150 V/mV
Input Voltage Range ● 0.2 36 V
CMRR Common Mode Rejection Ratio V
CM
= 0.2V to 4V, V
S
= 5V ● 89 106 dB
V
CM
= 0.2V to 10V, V
S
= 5V ● 64 85 dB
PSRR Power Supply Rejection Ratio V
S
= 2.4V to 12V, V
CM
= V
O
= 0.5V ● 89 99 dB
Minimum Operating Supply Voltage ● 2.3 2.4 V
V
OL
Output Voltage Swing LOW No Load ● 55 110 mV
I
SINK
= 100µA ● 225 450 mV
V
OH
Output Voltage Swing HIGH No Load ● V
+
– 0.08 V
+
– 0.04 V
I
SOURCE
= 100µA ● V
+
– 0.36 V
+
– 0.18 V
I
SC
Short-Circuit Current (Note 5) ● 0.6 1.1 mA
I
S
Supply Current per Amplifier (Note 6) ● 1.9 2.8 µA
P1-P3P4-P6P7-P9P10-P12

LT1673IS8#TRPBF

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Buy LT1673IS8#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
Precision Amplifiers 2uA Max, AV >=5 2x Over-The-Top Prec R2R
Lifecycle:
New from this manufacturer.
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