LT1920CS8 Linear Technology, LT1920CS8 Datasheet

IC PREC INSTRUMNTATION AMP 8SOIC

LT1920CS8

Manufacturer Part Number
LT1920CS8
Description
IC PREC INSTRUMNTATION AMP 8SOIC
Manufacturer
Linear Technology
Datasheet

Specifications of LT1920CS8

Amplifier Type
Instrumentation
Number Of Circuits
1
Slew Rate
1.2 V/µs
Gain Bandwidth Product
1MHz
Current - Input Bias
500pA
Voltage - Input Offset
30µV
Current - Supply
900µA
Current - Output / Channel
27mA
Voltage - Supply, Single/dual (±)
4.6 V ~ 36 V, ±2.3 V ~ 18 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Output Type
-
-3db Bandwidth
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LT1920CS8
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT1920CS8#PBF
Manufacturer:
Avago
Quantity:
13 500
Part Number:
LT1920CS8#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT1920CS8#TRPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
APPLICATIO S
FEATURES
TYPICAL APPLICATIO
LT1634CCZ-1.25
Single Gain Set Resistor: G = 1 to 10,000
Gain Error: G = 10, 0.3% Max
Gain Nonlinearity: G = 10, 30ppm Max
Input Offset Voltage: G = 10, 225 V Max
Input Offset Voltage Drift: 1 V/ C Max
Input Bias Current: 2nA Max
PSRR at G = 1: 80dB Min
CMRR at G = 1: 75dB Min
Supply Current: 1.3mA Max
Wide Supply Range: 2.3V to 18V
1kHz Voltage Noise: 7.5nV/ Hz
0.1Hz to 10Hz Noise: 0.28 V
Available in 8-Pin PDIP and SO Packages
Meets IEC 1000-4-2 Level 4 ESD Tests with
Two External 5k Resistors
Bridge Amplifiers
Strain Gauge Amplifiers
Thermocouple Amplifiers
Differential to Single-Ended Converters
Medical Instrumentation
392k
R5
50k
50k
1
2
R4
R3
100k
3
2
R8
+
LT1490
1/2
U
5
6
V
S
8
4
+
LT1490
1/2
R6
1k
Single Supply Barometer
1
4
2
6
50k
R7
LUCAS NOVA SENOR
7
NPC-1220-015-A-3L
5k
R
5k
SET
P-P
U
5
5k
5k
+
1
3
V
S
= 8V TO 30V
R1
825
R2
12
2
1
8
3
+
LT1920
G = 60
4
V
S
7
5
VOLTS
2.800
3.000
3.200
DESCRIPTIO
The LT
amplifier that requires only one external resistor to set gains
of 1 to 10,000. The low voltage noise of 7.5nV/ Hz (at 1kHz)
is not compromised by low power dissipation (0.9mA typical
for 2.3V to 15V supplies).
The high accuracy of 30ppm maximum nonlinearity and
0.3% max gain error (G = 10) is not degraded even for load
resistors as low as 2k (previous monolithic instrumentation
amps used 10k for their nonlinearity specifications). The
LT1920 is laser trimmed for very low input offset voltage
(125 V max), drift (1 V/ C), high CMRR (75dB, G = 1) and
PSRR (80dB, G = 1). Low input bias currents of 2nA max are
achieved with the use of superbeta processing. The output
can handle capacitive loads up to 1000pF in any gain configu-
ration while the inputs are ESD protected up to 13kV (human
body). The LT1920 with two external 5k resistors passes the
IEC 1000-4-2 level 4 specification.
The LT1920, offered in 8-pin PDIP and SO packages, is a pin
for pin and spec for spec improved replacement for the
AD620. The LT1920 is the most cost effective solution for
precision instrumentation amplifier applications. For even
better guaranteed performance, see the LT1167.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Programmable, Precision
6
Instrumentation Amplifier
INCHES Hg
28.00
30.00
32.00
TO
4-DIGIT
DVM
®
1920 is a low power, precision instrumentation
1920 TA01
Single Resistor Gain
U
G = 1000
R
V
L
OUT
= 1k
= 10V
Gain Nonlinearity
OUTPUT VOLTAGE (2V/DIV)
LT1920
1167 TA02
1

Related parts for LT1920CS8

LT1920CS8 Summary of contents

Page 1

... The LT1920, offered in 8-pin PDIP and SO packages pin for pin and spec for spec improved replacement for the AD620. The LT1920 is the most cost effective solution for precision instrumentation amplifier applications. For even better guaranteed performance, see the LT1167. , LTC and LT are registered trademarks of Linear Technology Corporation – ...

Page 2

... 0.1Hz to 10Hz 10Hz 10V 100kHz INFORMATION ORDER PART TOP VIEW NUMBER LT1920CN8 – LT1920CS8 + OUTPUT 6 LT1920IN8 REF 5 LT1920IS8 N8 PACKAGE 8-LEAD PDIP S8 PACKAGE S8 PART MARKING 1920 = 130 C/ W (N8 190 C/ W (S8) JA 1920I = 2k, unless otherwise noted. L MIN TYP MAX 1 10k 0.008 0.1 ...

Page 3

ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER C Common Mode Input Capacitance IN(CM) V Input Voltage Range CM CMRR Common Mode Rejection Ratio PSRR Power Supply Rejection Ratio I Supply Current S V Output Voltage Swing OUT I Output Current OUT BW Bandwidth ...

Page 4

LT1920 W U TYPICAL PERFOR A CE CHARACTERISTICS Gain Nonlinearity 1167 G01 OUTPUT VOLTAGE (2V/DIV 10V OUT Gain Nonlinearity 1000 1167 G04 G = 1000 OUTPUT ...

Page 5

W U TYPICAL PERFOR A CE CHARACTERISTICS Positive Power Supply Rejection Ratio vs Frequency 160 – – 15V 140 1000 120 G = 100 100 ...

Page 6

LT1920 W U TYPICAL PERFOR A CE CHARACTERISTICS Large-Signal Transient Response 1167 G28 10 s/DIV 15V 60pF L Large-Signal Transient Response 1167 G31 10 s/DIV ...

Page 7

W U TYPICAL PERFOR A CE CHARACTERISTICS Large-Signal Transient Response 1167 G37 50 s/DIV G = 1000 V = 15V 60pF L Settling Time vs Step Size 0.1% ...

Page 8

LT1920 W BLOCK DIAGRAM + V R3 400 –IN 2 – 400 +IN 3 – V THEORY OF OPERATIO The LT1920 is a modified version of the three op amp ...

Page 9

THEORY OF OPERATIO Input and Output Offset Voltage The offset voltage of the LT1920 has two components: the output offset and the input offset. The total offset voltage referred to the input (RTI) is found by dividing the output offset ...

Page 10

LT1920 THEORY OF OPERATIO – R THERMOCOUPLE LT1920 G + 10k Figure 3. Providing an Input Common Mode Current Path U U APPLICATIONS INFORMATION The LT1920 is a low power precision instrumentation amplifier that requires only one external resistor to ...

Page 11

... MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm) Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...

Page 12

... OUTPUT R6 LT1112 1V/ – 10k –3V R8 100 C3 15nF 1920 TA03 0.189 – 0.197* (4.801 – 5.004 0.150 – 0.157** 0.228 – 0.244 (3.810 – 3.988) (5.791 – 6.197) SO8 0996 < 105 A S 1920f LT/TP 0299 4K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1998 ...

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