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LT1882HS#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
LT1881/LT1882
1
18812fb
TYPICAL APPLICATION
DESCRIPTION
Dual and Quad
Rail-to-Rail Output, Picoamp
Input Precision Op Amps
The LT
®
1881 and LT1882 op amps bring high accuracy
input performance to amplifi ers with rail-to-rail output
swing. Input bias currents and capacitive load driving
capabilities are superior to the similar LT1884 and LT1885
amplifi ers, at the cost of a slight loss in speed. Input
offset voltage is trimmed to less than 50μV and the
low drift maintains this accuracy over the operating
temperature range. Input bias currents are an ultralow
200pA maximum.
The amplifi ers work on any total power supply voltage
between 2.7V and 36V (fully specifi ed from 5V to ±15V).
Output voltage swings to within 40mV of the negative
supply and 220mV of the positive supply make these
amplifi ers good choices for low voltage single supply
operation.
Capacitive loads up to 1000pF can be driven directly in
unity-gain follower applications.
The dual LT1881 and LT1881A are available with standard
pinouts in S8 and PDIP packages. The quad LT1882 is in a
14-pin SO package. For a higher speed device with similar
DC specifi cations, see the LT1884/LT1885.
FEATURES
APPLICATIONS
n
Offset Voltage: 50μV Maximum (LT1881A)
n
Input Bias Current: 200pA Maximum (LT1881A)
n
Offset Voltage Drift: 0.8μV/°C Maximum
n
Rail-to-Rail Output Swing
n
Supply Range: 2.7V to 36V
n
Operates with Single or Split Supplies
n
Open-Loop Voltage Gain: 1 Million Minimum
n
1mA Maximum Supply Current Per Amplifi er
n
Stable at A
V
= 1, C
L
= 1000pF
n
Standard Pinouts
n
Wide Operating Temperature Range:
–55°C to 125°C (LT1882)
n
Thermocouple Amplifi ers
n
Bridge Transducer Conditioners
n
Instrumentation Amplifi ers
n
Battery-Powered Systems
n
Photo Current Amplifi ers
16-Bit Voltage Output DAC on ±5V Supply
TC V
OS
Distribution, Industrial Grade
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
–5V
5V
33pF
V
OUT
–4.096V
TO 4.096V
LTC
®
1597
DAC
–
+
LT1881
+
–
LT1881
18812 TA01a
–5V
R
COM
R
OFS
REFR1
5V
1.65k
LT1634
4.096V
5V
INPUT OFFSET VOLTAGE DRIFT (μV/°C)
1 –0.8 –0.6 –0.4 –0.2 0 0.2 0.4 0.6 0.8–0.9 –0.7 –0.5 –0.3 –0.1 0.1 0.3 0.5 0.7 0.9 1
PERCENT OF UNITS (%)
18812 TA01b
26
24
22
20
18
16
14
12
10
8
6
4
2
0
V
S
= ±15V
40 N8 (1 LOT)
144 S8 (2 LOTS)
184 TOTAL PARTS
LT1881/LT1882
2
18812fb
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
+
to V
–
) ......................................... 40V
Differential Input Voltage (Note 2)...........................±10V
Input Voltage ..................................................... V
+
to V
–
Input Current (Note 2) ..........................................±10mA
Output Short-Circuit Duration (Note 3) ............ Indefi nite
Operating Temperature Range (Note 4)
LT1881C/LT1882C ................................–40°C to 85°C
LT1881I/LT1882I ..................................–40°C to 85°C
LT1882H ............................................–40°C to 125°C
LT1882MP..........................................–55°C to 125°C
Specifi ed Temperature Range (Note 5)
LT1881C/LT1882C ................................–40°C to 85°C
LT1881I/LT1882I ..................................–40°C to 85°C
LT1882H ............................................–40°C to 125°C
LT1882MP..........................................–55°C to 125°C
Maximum Junction Temperature........................... 150°C
Storage Temperature Range ...................–65°C to 150°C
Lead Temperature (Soldering, 10 sec) .................. 300°C
(Note 1)
S8 PACKAGE
8-LEAD PLASTIC SO
N8 PACKAGE
8-LEAD PDIP
1
2
3
4
8
7
6
5
TOP VIEW
V
+
OUT B
–IN B
+IN B
OUT A
–IN A
+IN A
V
–
B
A
T
JMAX
= 150°C, θ
JA
= 130°C/W (N8)
T
JMAX
= 150°C, θ
JA
= 190°C/W (S8)
TOP VIEW
S PACKAGE
14-LEAD PLASTIC SO
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
DA
CB
T
JMAX
= 150°C, θ
JA
= 160°C/W
PIN CONFIGURATION
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE
LT1881CN8#PBF LT1881CN8#TRPBF LT1881CN8 8-Lead PDIP 0°C to 70°C
LT1881IN8#PBF LT1881IN8#TRPBF LT1881IN8 8-Lead PDIP –40°C to 85°C
LT1881CS8#PBF LT1881CS8#TRPBF 1881 8-Lead Plastic SO 0°C to 70°C
LT1881IS8#PBF LT1881IS8#TRPBF 1881I 8-Lead Plastic SO –40°C to 85°C
LT1881ACN8#PBF LT1881ACN8#TRPBF LT1881ACN8 8-Lead PDIP 0°C to 70°C
LT1881AIN8#PBF LT1881AIN8#TRPBF LT1881AIN8 8-Lead PDIP –40°C to 85°C
LT1881ACS8#PBF LT1881ACS8#TRPBF 1881A 8-Lead Plastic SO 0°C to 70°C
LT1881AIS8#PBF LT1881AIS8#TRPBF 1881AI 8-Lead Plastic SO –40°C to 85°C
LT1882CS#PBF LT1882CS#TRPBF LT1882CS 14-Lead Plastic SO 0°C to 70°C
LT1882IS#PBF LT1882IS#TRPBF LT1882IS 14-Lead Plastic SO –40°C to 85°C
LT1882HS#PBF LT1882HS#TRPBF LT1882HS 14-Lead Plastic SO –40°C to 125°C
LT1882MPS#PBF LT1882MPS#TRPBF LT1882MPS 14-Lead Plastic SO –55°C to 125°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
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/
LT1881/LT1882
3
18812fb
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS
C/I Grades H/MP Grades
UNITSMIN TYP MAX MIN TYP MAX
V
OS
Input Offset Voltage (LT1881A)
0°C < T
A
< 70°C
–40°C < T
A
< 85°C
l
l
25 50
85
110
μV
μV
μV
Input Offset Voltage (LT1881/LT1882)
0°C < T
A
< 70°C
–40°C < T
A
< 85°C
–40°C < T
A
< 125°C
–55°C < T
A
< 125°C
l
l
l
l
30 80
125
150
30 80
300
300
μV
μV
μV
μV
μV
ΔV
OS
/ΔT
Input Offset Voltage Drift
(Note 6)
0°C < T
A
< 70°C
–40°C < T
A
< 85°C
–40°C < T
A
< 125°C
–55°C < T
A
< 125°C
l
l
l
l
0.3
0.3
0.8
0.8
0.3
0.3
0.8
0.8
μV/°C
μV/°C
μV/°C
μV/°C
ΔV
OS
/
ΔTIME
Long-Term Input Offset
Voltage Stability
0.3 0.3 μV/month
I
OS
Input Offset Current (LT1881A)
0°C < T
A
< 70°C
–40°C < T
A
< 85°C
l
l
100 200
250
300
pA
pA
pA
Input Offset Current (LT1881/LT1882)
0°C < T
A
< 70°C
–40°C < T
A
< 85°C
–40°C < T
A
< 125°C
–55°C < T
A
< 125°C
l
l
l
l
150 500
600
700
150 500
2000
2000
pA
pA
pA
pA
pA
I
B
Input Bias Current (LT1881A)
0°C < T
A
< 70°C
–40°C < T
A
< 85°C
l
l
100 200
250
300
pA
pA
pA
Input Bias Current (LT1881/LT1882)
0°C < T
A
< 70°C
–40°C < T
A
< 85°C
–40°C < T
A
< 125°C
–55°C < T
A
< 125°C
l
l
l
l
150 500
600
700
150 500
3000
3000
pA
pA
pA
pA
pA
Input Noise Voltage 0.1Hz to 10Hz 0.5 0.5 μV
P-P
e
n
Input Noise Voltage Density f = 1kHz 14 14 nV/√Hz
i
n
Input Noise Current Density f = 1kHz 0.03 0.03 pA/√Hz
R
IN
Input Resistance Differential Mode
Common Mode
l
l
20
100
20
100
MΩ
GΩ
C
IN
Input Capacitance
l
22pF
V
CM
Input Voltage Range
l
V
–
+ 1.0
V
–
+ 1.2
V+ – 1.0
V+ – 1.2
V
–
+ 1.0
V
–
+ 1.2
V+ – 1.0
V+ – 1.2
V
V
CMRR Common Mode Rejection Ratio 1V < V
CM
< 4V
1.2V < V
CM
< 3.8V
l
106
104
128 106
102
128 dB
dB
PSRR Power Supply Rejection Ratio V
–
= 0V, V
CM
= 1.5V
0°C < T
A
< 85°C, 2.7V < V
+
< 32V
0°C < T
A
< 125°C, 2.7V < V
+
< 32V
T
A
= –40°C, 3V < V
+
< 32V
T
A
= –55°C, 3V < V
+
< 32V
l
l
106
106
106
106
dB
dB
dB
dB
Minimum Operating Supply Voltage
l
2.4 2.7 2.4 2.7 V
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. Single supply operation V
S
= 5V, 0V; V
CM
= V
S
/2 unless otherwise noted.
(Note 5)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

LT1882HS#PBF

Mfr. #:
Buy LT1882HS#PBF
Manufacturer:
Analog Devices Inc.
Description:
Precision Amplifiers 4x R2R Out, pA In Prec Op Amps
Lifecycle:
New from this manufacturer.
Delivery:
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