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LT1996ACDD#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24
LT1996
1
1996f
RESISTOR MATCHING (%)
PERCENTAGE OF UNITS (%)
0.04
1996 TA01b
–0.02
0
0.02
40
35
30
25
20
15
10
5
0
–0.04
LT1996A
G = 81
TYPICAL APPLICATIO
U
FEATURES
■
Pin Configurable as a Difference Amplifier,
Inverting and Noninverting Amplifier
■
Difference Amplifier
Gain Range 9 to 117
CMRR >80dB
■
Noninverting Amplifier
Gain Range 0.008 to 118
■
Inverting Amplifier
Gain Range –0.08 to –117
■
Gain Error: <0.05%
■
Gain Drift: < 3ppm/°C
■
Wide Supply Range: Single 2.7V to Split ±18V
■
Micropower Operation: 100µA Supply
■
Input Offset Voltage: 50µV (Max)
■
Gain Bandwidth Product: 560kHz
■
Rail-to-Rail Output
■
Space Saving 10-Lead MSOP and DFN Packages
Precision, 100µA
Gain Selectable Amplifier
The LT
®
1996 combines a precision operational amplifier
with eight precision resistors to form a one-chip solution
for accurately amplifying voltages. Gains from –117 to
118 with a gain accuracy of 0.05% can be achieved without
any external components. The device is particularly well
suited for use as a difference amplifier, where the excellent
resistor matching results in a common mode rejection
ratio of greater than 80dB.
The amplifier features a 50µV maximum input offset
voltage and a gain bandwidth product of 560kHz. The
device operates from any supply voltage from 2.7V to 36V
and draws only 100µA supply current on a 5V supply. The
output swings to within 40mV of either supply rail.
The internal resistors have excellent matching character-
istics; variation is 0.05% over temperature with a guaran-
teed matching temperature coefficent of less than 3ppm/°C.
The resistors are also extremely stable over voltage,
exhibiting a nonlinearity of less than 10ppm.
The LT1996 is fully specified at 5V and ±15V supplies and
from –40°C to 85°C. The device is available in space
saving 10-lead MSOP and DFN packages. For an amplifier
with selectable gains from –13 to 14, see the LT1991 data
sheet.
DESCRIPTIO
U
APPLICATIO S
U
Rail-to-Rail Gain = 9 Difference Amplifier Distribution of Resistor Matching
–
+
15V
–15V
∆V
IN
V
M(IN)
V
P(IN)
–
+
V
OUT
= V
REF
+ 9 •
∆V
IN
SWING 40mV TO
EITHER RAIL
INPUT RANGE
±60V
R
IN
= 100kΩ
LT1996
1996 TA01
450k/81
450k/81
450k/27
450k/27
450k/9
450k
450k
450k/9
4pF
4pF
V
REF
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners. Patents Pending.
■
Handheld Instrumentation
■
Medical Instrumentation
■
Strain Gauge Amplifiers
■
Differential to Single-Ended Conversion
LT1996
2
1996f
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
∆G Gain Error V
S
= ±15V, V
OUT
= ±10V; R
L
= 10k
G = 81; LT1996AMS
● ±0.02 ±0.05 %
G = 27; LT1996AMS
● ±0.03 ±0.06 %
G = 9; LT1996AMS
● ±0.03 ±0.07 %
G = 81; LT1996ADD ● ±0.02 ±0.05 %
G = 27; LT1996ADD
● ±0.02 ±0.07 %
G = 9; LT1996ADD
● ±0.03 ±0.08 %
G = 81; LT1996 ● ±0.04 ±0.12 %
G = 27; LT1996
● ±0.04 ±0.12 %
G = 9; LT1996
● ±0.04 ±0.12 %
GNL Gain Nonlinearity V
S
= ±15V; V
OUT
= ±10V; R
L
= 10k; G = 9 ● 1 10 ppm
∆G/∆T Gain Drift vs Temperature (Note 6) V
S
= ±15V; V
OUT
= ±10V; R
L
= 10k ● 0.3 3 ppm/°C
CMRR Common Mode Rejection Ratio, V
S
= ±15V; G = 9; V
CM
= ±15.3V
Referred to Inputs (RTI) LT1996AMS
● 80 100 dB
LT1996ADD
● 80 100 dB
LT1996
● 70 100 dB
V
S
= ±15V; G = 27; V
CM
= –14.5V to 14.3V
LT1996AMS
● 95 105 dB
LT1996ADD
● 90 105 dB
LT1996
● 75 105 dB
PACKAGE/ORDER I FOR ATIO
UUW
Total Supply Voltage (V
+
to V
–
) ............................... 40V
Input Voltage (Pins P9/M9, Note 2) ....................... ±60V
Input Current
(Pins P27/M27/P81/M81, Note 2) .................. ±10mA
Output Short-Circuit Duration (Note 3) ............ Indefinite
Operating Temperature Range (Note 4) ...–40°C to 85°C
Specified Temperature Range (Note 5) ....–40°C to 85°C
ORDER PART
NUMBER
MS PART MARKING*T
JMAX
= 150°C, θ
JA
= 230°C/W
LTBPB
LT1996CMS
LT1996IMS
LT1996ACMS
LT1996AIMS
ABSOLUTE AXI U RATI GS
W
WW
U
(Note 1)
The
● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. Difference amplifier configuration, V
S
= 5V, 0V or ±15V;
V
CM
= V
REF
= half supply, unless otherwise noted.
*Temperature and electrical grades are identified by a label on the shipping container. Consult LTC Marketing for parts specified with wider operating temperature ranges.
1
2
3
4
5
P9
P27
P81
V
EE
REF
10
9
8
7
6
M9
M27
M81
V
CC
OUT
TOP VIEW
MS PACKAGE
10-LEAD PLASTIC MSOP
Maximum Junction Temperature
DD Package ...................................................... 125°C
MS Package ..................................................... 150°C
Storage Temperature Range
DD Package .......................................–65°C to 125°C
MS Package ......................................–65°C to 150°C
MSOP–Lead Temperature (Soldering, 10 sec)...... 300°C
ORDER PART
NUMBER
DD PART MARKING*
T
JMAX
= 125°C, θ
JA
= 160°C/W
UNDERSIDE METAL CONNECTED TO V
EE
(PCB CONNECTION OPTIONAL)
LBPC
LT1996CDD
LT1996IDD
LT1996ACDD
LT1996AIDD
TOP VIEW
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
10
9
6
7
8
4
5
3
2
1
M9
M27
M81
V
CC
OUT
P9
P27
P81
V
EE
REF
ELECTRICAL CHARACTERISTICS
LT1996
3
1996f
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
CMRR Common Mode Rejection Ratio (RTI) V
S
= ±15V; G = 81; V
CM
= –14.1V to 13.9V
LT1996AMS
● 105 120 dB
LT1996ADD
● 100 120 dB
LT1996
● 85 120 dB
V
CM
Input Voltage Range (Note 7) P9/M9 Inputs
V
S
= ±15V; V
REF
= 0V ● –15.5 15.3 V
V
S
= 5V, 0V; V
REF
= 2.5V ● 0.84 3.94 V
V
S
= 3V, 0V; V
REF
= 1.25V ● 0.98 1.86 V
P9/M9 Inputs, P81/M81 Connected to REF
V
S
= ±15V; V
REF
= 0V ● –60 60 V
V
S
= 5V, 0V; V
REF
= 2.5V ● –12.6 15.6 V
V
S
= 3V, 0V; V
REF
= 1.25V ● –1.25 6.8 V
P27/M27 Inputs
V
S
= ±15V; V
REF
= 0V ● –14.5 14.3 V
V
S
= 5V, 0V; V
REF
= 2.5V ● 0.95 3.84 V
V
S
= 3V, 0V; V
REF
= 1.25V ● 1 1.82 V
P81/M81 Inputs
V
S
= ±15V; V
REF
= 0V ● –14.1 13.9 V
V
S
= 5V, 0V; V
REF
= 2.5V ● 0.99 3.81 V
V
S
= 3V, 0V; V
REF
= 1.25V ● 1 1.8 V
V
OS
Op Amp Offset Voltage (Note 8) LT1996AMS, V
S
= 5V, 0V 15 50 µV
● 135 µV
LT1996AMS, V
S
= ±15V 15 80 µV
● 160 µV
LT1996MS 25 100 µV
● 200 µV
LT1996DD 25 150 µV
● 250 µV
∆V
OS
/∆T Op Amp Offset Voltage Drift (Note 6) ● 0.3 1 µV/°C
I
B
Op Amp Input Bias Current 2.5 5 nA
● 7.5 nA
I
OS
Op Amp Input Offset Current LT1996A 50 500 pA
● 750 pA
LT1996 50 1000 pA
● 1500 pA
Op Amp Input Noise Voltage 0.01Hz to 1Hz 0.35 µV
P-P
0.01Hz to 1Hz 0.07 µV
RMS
0.1Hz to 10Hz 0.25 µV
P-P
0.1Hz to 10Hz 0.05 µV
RMS
e
n
Input Noise Voltage Density G = 9; f = 1kHz 46 nV/√Hz
(Includes Resistor Noise) G = 117; f = 1kHz 18 nV/√Hz
R
IN
Input Impedance (Note 10) P9 (M9 = Ground) ● 350 500 650 kΩ
P27 (M27 = Ground)
● 326.9 467 607.1 kΩ
P81 (M81 = Ground)
● 319.2 456 592.8 kΩ
M9 (P9 = Ground) ● 35 50 65 kΩ
M27 (P27 = Ground)
● 11.69 16.7 21.71 kΩ
M81 (P81 = Ground)
● 3.85 5.5 7.15 kΩ
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. Difference amplifier configuration, V
S
= 5V, 0V or ±15V;
V
CM
= V
REF
= half supply, unless otherwise noted.
ELECTRICAL CHARACTERISTICS
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24

LT1996ACDD#TRPBF

Mfr. #:
Buy LT1996ACDD#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
Precision Amplifiers Prec, 100 A Gain Sel Amp
Lifecycle:
New from this manufacturer.
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