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LT1884CS8#PBF

P1-P3P4-P6P7-P9P10-P12
LT1884/LT1885
1
The LT
®
1884/LT1885 op amps bring high accuracy input
performance to amplifiers with rail-to-rail output swing
while providing faster response than other precision am-
plifiers. Input offset voltage is trimmed to less than 50µV
and the low drift maintains this accuracy over the operat-
ing temperature range. Input bias currents are an ultralow
400pA maximum.
The amplifiers work on any total power supply voltage
between 2.7V and 36V (fully specified from 5V to ±15V).
Output voltage swings to within 40mV of the negative
supply and 220mV of the positive supply make these
amplifiers good choices for low voltage single supply
operation.
Slew rates of 1V/µs with a supply current of less than 1mA
per amplifier give superior response and settling time
performance in a low power precision amplifier.
The dual LT1884 is available with standard pinouts in
8-pin SO and PDIP packages. The quad LT1885 is also in
the standard pinout 14-pin SO package.
■
Thermocouple Amplifiers
■
Bridge Transducer Conditioners
■
Instrumentation Amplifiers
■
Battery-Powered Systems
■
Photo Current Amplifiers
■
Precision Integrators
■
Precision Current Sources
, LTC and LT are registered trademarks of Linear Technology Corporation.
■
Offset Voltage: 50µV Max (LT1884A)
■
Input Bias Current: 400pA Max (LT1884A)
■
Offset Voltage Drift: 0.8µV/°C Max
■
Rail-to-Rail Output Swing
■
Operates with Single or Split Supplies
■
Open-Loop Voltage Gain: 1 Million Min
■
1mA Maximum Supply Current Per Amplifier
■
Slew Rate: 1V/µs
■
Standard Pinouts
Dual/Quad Rail-to-Rail
Output, Picoamp Input
Precision Op Amps
Input Fault Protected Instrumentation Amplifier
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
–
+
+
–
–
+
+
–
1884 TA01
R
G/2
R
G/2
22pF
TRIM FOR
AC CMRR
10k
1/4 LT1885 OUT
–IN
GUARD
+IN
1/4 LT1885
1/4 LT1885
1/4 LT1885
10k
1M
1M
3
5
10k
10k
9.76k
500Ω
TRIM FIRST
FOR DC CMRR
10k
GAIN =
2•10k
R
G
10pF
LT1884/LT1885
2
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) ............ Indefinite
ORDER
PART NUMBER
S8 PART MARKING
T
JMAX
= 150°C, θ
JA
= 130°C/W (N8)
T
JMAX
= 150°C, θ
JA
= 190°C/W (S8)
Consult factory for Military grade parts.
1884
1884A
LT1885CS
LT1885IS
(Note 1)
ABSOLUTE AXI U RATI GS
WWWU
PACKAGE/ORDER I FOR ATIO
UU
W
Operating Temperature Range (Note 4) .. –40°C to 85°C
Specified Temperature Range (Note 5) ... –40°C to 85°C
Maximum Junction Temperature .......................... 150°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
1884I
1884AI
ORDER
PART NUMBER
LT1884CN8
LT1884CS8
LT1884ACN8
LT1884ACS8
LT1884IN8
LT1884IS8
LT1884AIN8
LT1884AIS8
1
2
3
4
8
7
6
5
TOP VIEW
V
+
OUT B
–IN B
+IN B
OUT A
–IN A
+IN A
V
–
S8 PACKAGE
8-LEAD PLASTIC SO
N8 PACKAGE
8-LEAD PDIP
A
B
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
A
D
C
B
T
JMAX
= 150°C, θ
JA
= 110°C/W
The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C.
Single supply operation V
EE
= 0, V
CC
= 5V; V
CM
= V
CC
/2 unless otherwise noted. (Note 5)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage (LT1884A) 25 50 µV
0°C < T
A
< 70°C ● 85 µV
–40°C < T
A
< 85°C ● 110 µV
Input Offset Voltage (LT1884/LT1885) 30 80 µV
0°C < T
A
< 70°C ● 125 µV
–40°C < T
A
< 85°C ● 150 µV
Input Offset Voltage Drift (Note 6) 0°C < T
A
< 70°C ● 0.3 0.8 µV/°C
–40°C < T
A
< 85°C ● 0.3 0.8 µV/°C
I
OS
Input Offset Current (LT1884A) 100 300 pA
0°C < T
A
< 70°C ● 400 pA
–40°C < T
A
< 85°C ● 500 pA
Input Offset Current (LT1884/LT1885) 150 900 pA
0°C < T
A
< 70°C ● 1200 pA
–40°C < T
A
< 85°C ● 1400 pA
ELECTRICAL CHARACTERISTICS
LT1884/LT1885
3
The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C.
Single supply operation V
EE
= 0, V
CC
= 5V; V
CM
= V
CC
/2 unless otherwise noted. (Note 5)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
I
B
Input Bias Current (LT1884A) 100 400 pA
0°C < T
A
< 70°C ● 500 pA
–40°C < T
A
< 85°C ● 600 pA
Input Bias Current (LT1884/LT1885) 150 900 pA
0°C < T
A
< 70°C ● 1200 pA
–40°C < T
A
< 85°C ● 1400 pA
Input Noise Voltage 0.1Hz to 10Hz 0.4 µV
P-P
e
n
Input Noise Voltage Density f = 1kHz 9.5 nV/√Hz
i
n
Input Noise Current Density f = 1kHz 0.05 pA/√Hz
V
CM
Input Voltage Range V
EE
+ 1.0 V
CC
– 1.0 V
● V
EE
+ 1.2 V
CC
– 1.2 V
CMRR Common Mode Rejection Ratio 1V < V
CM
< 4V 108 128 dB
1.2V < V
CM
< 3.8V ● 106 dB
PSRR Power Supply Rejection Ratio V
EE
= 0, V
CM
= 1.5V
0°C < T
A
< 85°C, 2.7V < V
CC
< 32V ● 108 132 dB
T
A
= –40°C, 3V < V
CC
< 32V 108 132 dB
Minimum Operating Supply Voltage ● 2.4 2.7 V
A
VOL
Large-Signal Voltage Gain R
L
= 10k; 1V < V
OUT
< 4V 500 1600 V/mV
● 350 V/mV
R
L
= 2k; 1V < V
OUT
< 4V 400 800 V/mV
● 300 V/mV
R
L
= 1k; 1V < V
OUT
< 4V 300 400 V/mV
● 200 V/mV
V
OL
Output Voltage Swing Low No Load ● 20 40 mV
I
SINK
= 100µA ● 25 50 mV
I
SINK
= 1mA ● 70 150 mV
I
SINK
= 5mA ● 270 600 mV
V
OH
Output Voltage Swing High No Load ● 120 220 mV
(Referred to V
CC
)I
SOURCE
= 100µA ● 130 230 mV
I
SOURCE
= 1mA ● 180 300 mV
I
SOURCE
= 5mA ● 360 600 mV
I
S
Supply Current per Amplifier V
CC
= 3V 0.45 0.65 0.85 mA
● 1.30 mA
V
CC
= 5V 0.50 0.65 0.9 mA
● 1.4 mA
V
CC
= 12V 0.50 0.70 1.0 mA
● 1.5 mA
I
SC
Short-Circuit Current V
OUT
Short to GND ● 15 30 mA
V
OUT
Short to V
CC
● 15 30 mA
GBW Gain-Bandwidth Product f = 20kHz 1.2 2 MHz
t
S
Settling Time 0.01%, V
OUT
= 1.5V to 3.5V, 10 µs
A
V
= –1, R
L
= 2k
SR
+
Positive Slew Rate A
V
= –1 0.45 0.9 V/µs
● 0.36 V/µs
SR
–
Negative Slew Rate A
V
= –1 0.35 0.7 V/µs
● 0.25 V/µs
ELECTRICAL CHARACTERISTICS
P1-P3P4-P6P7-P9P10-P12

LT1884CS8#PBF

Mfr. #:
Buy LT1884CS8#PBF
Manufacturer:
Analog Devices Inc.
Description:
Precision Amplifiers Dual R-to-R Output Picoamp OA
Lifecycle:
New from this manufacturer.
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