LT1632 LINER [Linear Technology], LT1632 Datasheet

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LT1632

Manufacturer Part Number
LT1632
Description
45MHz, 45V/us, Dual/Quad Rail-to-Rail Input and Output Precision Op Amps
Manufacturer
LINER [Linear Technology]
Datasheet

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FEATURES
APPLICATIONS
TYPICAL
Single Supply, 40dB Gain, 550kHz Instrumentation Amplifier
Gain-Bandwidth Product: 45MHz
Slew Rate: 45V/ s
Low Supply Current per Amplifier: 4.3mA
Input Common Mode Range Includes Both Rails
Output Swings Rail-to-Rail
Input Offset Voltage, Rail-to-Rail: 1350 V Max
Input Offset Current: 440nA Max
Input Bias Current: 2.2 A Max
Open-Loop Gain: 800V/mV Min
Low Input Noise Voltage: 12nV/ Hz Typ
Low Distortion: – 92dBc at 100kHz
Wide Supply Range: 2.7V to 15V
Large Output Drive Current: 35mA Min
Dual in 8-Pin PDIP and SO Packages
Active Filters
Rail-to-Rail Buffer Amplifiers
Driving A/D Converters
Low Voltage Signal Processing
Battery-Powered Systems
20k
R1
V
IN
+
1/2 LT1632
APPLICATION
R2
2k
U
432
R5
R3
2k
V
IN
+
U
+
20k
1/2 LT1632
R4
3V
1630/31 F02
V
OUT
Rail-to-Rail Input and Output
45MHz, 45V/ s, Dual/Quad
DESCRIPTION
The LT
output op amps with a 45MHz gain-bandwidth product and
a 45V/ s slew rate.
The LT1632/LT1633 have excellent DC precision over the
full range of operation. Input offset voltage is typically less
than 400 V and the minimum open-loop gain of 0.8
million into a 10k load virtually eliminates all gain error.
Common mode rejection is typically 83dB over the full rail-
to-rail input range when on a single 5V supply for excellent
noninverting performance.
The LT1632/LT1633 maintain their performance for sup-
plies from 2.7V to 36V and are specified at 3V, 5V and 15V
supplies. The inputs can be driven beyond the supplies
without damage or phase reversal of the output. The
output delivers load currents in excess of 35mA.
The LT1632 is available in 8-pin PDIP and SO packages
with the standard dual op amp pinout. The LT1633 features
the standard quad op amp configuration and is available in
a 14-pin plastic SO package. These devices can be used as
plug-in replacements for many standard op amps to
improve input/output range and performance.
, LTC and LT are registered trademarks of Linear Technology Corporation.
®
1632/LT1633 are dual/quad, rail-to-rail input and
–10
–20
–30
–40
–50
–60
–70
50
40
30
20
10
0
100
Precision Op Amps
COMMON MODE INPUT
U
DIFFERENTIAL INPUT
Frequency Response
1k
FREQUENCY (Hz)
10k
LT1632/LT1633
100k
V
A
1M
S
V
1632/33 TA02
= 3V
= 100
10M
1

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LT1632 Summary of contents

Page 1

... The inputs can be driven beyond the supplies without damage or phase reversal of the output. The output delivers load currents in excess of 35mA. The LT1632 is available in 8-pin PDIP and SO packages with the standard dual op amp pinout. The LT1633 features the standard quad op amp configuration and is available in a 14-pin plastic SO package ...

Page 2

... Specified Temperature Range (Note 4) ..... – Junction Temperature .......................................... 150 C Storage Temperature Range ................. – 150 C Lead Temperature (Soldering, 10 sec).................. 300 ORDER PART NUMBER OUTA 1 2 – LT1632CN8 + LT1632CS8 + – PART MARKING OUT B 7 1632 14-LEAD PLASTIC 150 C, ...

Page 3

... – 0. – 3V 0. – 0. 12V 0. 12V 0. LT1632/LT1633 MIN TYP MAX 100 79 101 2.6 2 600 1200 500 1000 910 1800 680 1400 20 40 ...

Page 4

... LT1632/LT1633 ELECTRICAL CHARACTERISTICS 0 C < T < 5V, 0V 3V, 0V SYMBOL PARAMETER Minimum Supply Voltage (Note 9) V Output Voltage Swing Low (Note Output Voltage Swing High (Note Short-Circuit Current SC I Supply Current per Amplifier S GBW Gain-Bandwidth Product (Note 7) ...

Page 5

... – 15V 15V S No Load I = 5mA SINK I = 25mA SINK No Load I = 5mA SOURCE I = 25mA SOURCE LT1632/LT1633 MIN TYP MAX UNITS 110 mV 860 1700 mV 580 1200 4.95 6 MHz 11 22 ...

Page 6

... LT1632/LT1633 ELECTRICAL CHARACTERISTICS 15V 0V 0V, unless otherwise noted OUT SYMBOL PARAMETER I Short-Circuit Current SC I Supply Current per Amplifier S GBW Gain-Bandwidth Product (Note 7) SR Slew Rate t Settling Time < T < 15V 0V SYMBOL PARAMETER ...

Page 7

... Note 3: This parameter is not 100% tested. Note 4: The LT1632C/LT1633C are guaranteed to meet specified performance from and are designed, characterized and expected to meet these extended temperature limits, but are not tested at – ...

Page 8

... LT1632/LT1633 W U TYPICAL PERFORMANCE CHARACTERISTICS V Distribution (PNP Stage 5V –1250 –750 –250 250 750 1250 INPUT OFFSET VOLTAGE ( V) 1632/33 G31 Supply Current vs Supply Voltage 6 125 C A 5.5 5 4.5 A 4.0 3 – 3.0 2.5 2 ...

Page 9

... FREQUENCY (MHz) 1632/33 G11 PSRR vs Frequency 100 V = 15V POSITIVE SUPPLY NEGATIVE SUPPLY 10k 100k 1M FREQUENCY (Hz) 1632/33 G13 LT1632/LT1633 Noise Current Spectrum 5V 4.25V CM NPN ACTIVE 2. PNP ACTIVE 1000 ...

Page 10

... LT1632/LT1633 W U TYPICAL PERFORMANCE CHARACTERISTICS Capacitive Load Handling 5V 100 1000 CAPACITIVE LOAD (pF) 1632/33 G16 Open-Loop Gain 15V 10k L – 5 –10 –15 – 20 –20 –15 –10 – ...

Page 11

... U APPLICATIONS INFORMATION Rail-to-Rail Input and Output The LT1632/LT1633 are fully functional for an input and output signal range from the negative supply to the posi- tive supply. Figure 1 shows a simplified schematic of the amplifier. The input stage consists of two differential amplifiers, a PNP stage Q1/Q2 and an NPN stage Q3/Q4 that are active over different ranges of input common mode voltage ...

Page 12

... DMAX S SMAX S To ensure that the LT1632/LT1633 are used properly, calculate the worst-case power dissipation, use the ther- mal resistance for a chosen package and its maximum junction temperature to derive the maximum ambient temperature. Example: An LT1632CS8 operating on 15V supplies and driving a 500 , the worst-case power dissipation per ...

Page 13

... Single Supply, 40dB Gain, 550kHz Instrumentation Amplifier An instrumentation amplifier with a rail-to-rail output swing, operating from a 3V supply can be constructed with the LT1632 as shown in the first page of this data sheet less than 10mA. Internal 225 resistors R6 and R7 will limit the input current for differential input signals of 4.5V or less ...

Page 14

... Single Supply, 400kHz, 4th Order Butterworth Filter The circuit shown in Figure 2 makes use of the low voltage operation and the wide bandwidth of the LT1632 to create a 400kHz 4th order lowpass filter with a single supply. The amplifiers are configured in the inverting mode to mini- mize common mode induced distortion and the output can swing rail-to-rail for the maximum dynamic range ...

Page 15

... The amplifier A2 is used to restore the DC level at the output. With a large output current of the LT1632, the output can be set at 1. supply and 50 load. This circuit has a – 3dB bandwidth from 2MHz to 2GHz and a power gain of 25dB ...

Page 16

... APPLICATION Tunable Q Notch Filter A single supply, tunable Q notch filter as shown in Figure 5 is built with LT1632 to maximize the output swing. The filter has a gain of 2, and the notch frequency (f the values of R and C. The resistors R10 and R11 set up the DC level at the output. The Q factor can be adjusted by varying the value of R8 ...

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