lt1011amj8 Linear Technology Corporation, lt1011amj8 Datasheet

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lt1011amj8

Manufacturer Part Number
lt1011amj8
Description
Voltage Comparator
Manufacturer
Linear Technology Corporation
Datasheet

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FEATURES
TYPICAL APPLICATIO
APPLICATIO S
, LTC and LT are registered trademarks of Linear Technology Corporation.
Pin Compatible with LM111 Series Devices
Guaranteed
Guaranteed
Guaranteed
Guaranteed
Guaranteed
50mA Output Current Source or Sink
Fully Specified for Single 5V Operation
SAR A/D Converters
Voltage-to-Frequency Converters
Precision RC Oscillator
Peak Detector
Motor Speed Control
Pulse Generator
Relay/Lamp Driver
PARALLEL
30V Differential Input Voltage
OUTPUTS
15V
5V
13
FULL-SCALE
24
20
12
4
12
TRIM
6.49k
R2*
Max 0.5mV Input Offset Voltage
Max 25nA Input Bias Current
Max 3nA Input Offset Current
Max 250ns Response Time
Min 200,000 Voltage Gain
R1
1k
11 10 9
5
E
14
6
U
7
6.98k
SAR REGISTER
R3
D/A CONVERTER
8
8
AM2504
START
12-BIT
15
7
9
S
6012
LM329
7V
6
16 17 18 19 20 21
0.001 F
10 s 12-Bit A/D Converter
5
CLOCK f = 1.4MHz
4
3.9k
U
16
3
CP
2
CC
D
S
17
1
19
PARALLEL
OUTPUTS
18
15V
–15V
SERIAL OUTPUT
2.49k
820
*R2 AND R4
R4*
SHOULD TC TRACK
0V TO 10V
R6
INPUT
LATCH
7475
2
3
+
LT1011A
DESCRIPTIO
The LT
nificantly better input characteristics than the LM111.
Although pin compatible with the LM111, it offers four
times lower bias current, six times lower offset voltage and
five times higher voltage gain. Offset voltage drift, a
previously unspecified parameter, is guaranteed at
15 V/ C. Additionally, the supply current is lower by a
factor of two with no loss in speed. The LT1011 is several
times faster than the LM111 when subjected to large
overdrive conditions. It is also fully specified for DC
parameters and response time when operating on a single
5V supply. These parametric improvements allow the
LT1011 to be used in high accuracy ( 12-bit) systems
without trimming. In a 12-bit A/D application, for instance,
using a 2mA DAC, the offset error introduced by the
LT1011 is less than 0.5LSB. The LT1011 retains all the
versatile features of the LM111, including single 3V to
with 50mA source/sink capability. It can drive loads refer-
enced to ground, negative supply or positive supply, and
is specified up to 50V between V
A differential input voltage up to the full supply voltage is
allowed, even with 18V supplies, enabling the inputs to
be clamped to the supplies with simple diode clamps.
18V supply operation, and a floating transistor output
1011 TA01
R5
1k
7
5V
®
1011 is a general purpose comparator with sig-
Voltage Comparator
U
450
400
350
300
200
100
500
250
150
50
0
0.1
Response Time vs Overdrive
LT1011/LT1011A
OUTPUT
RISING
FALLING
OUTPUT
OVERDRIVE (mV)
1
and the collector output.
10
1011 TA02
100
1

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lt1011amj8 Summary of contents

Page 1

... Differential Input Voltage Fully Specified for Single 5V Operation U APPLICATIO S SAR A/D Converters Voltage-to-Frequency Converters Precision RC Oscillator Peak Detector Motor Speed Control Pulse Generator Relay/Lamp Driver , LTC and LT are registered trademarks of Linear Technology Corporation. U TYPICAL APPLICATIO 10 s 12-Bit A/D Converter 3. LM329 FULL-SCALE 7V TRIM ...

Page 2

... R 50k (Note 5) S (Note 5) (Note 4) (Note 5) ORDER PART NUMBER 8 V+ LT1011ACN8 7 OUTPUT LT1011CN8 BALANCE/ 6 LT1011CS8 STROBE 5 BALANCE LT1011AIS8 LT1011IS8 S8 PART MARKING 1011 1011AI 1011I ORDER PART NUMBER LT1011ACJ8 LT1011AMJ8 LT1011CJ8 LT1011MJ8 A LT1011AC/AI/AM LT1011C/I/M TYP MAX MIN TYP MAX 0.3 0.5 0.6 1.5 1.0 3.0 0.75 2.0 1.50 3.0 0 ...

Page 3

ELECTRICAL CHARACTERISTICS The denotes the specifications which apply over the full operating temperature range, otherwide specifications are 15V 0V –15V, output at pin 7 unless otherwise noted. S ...

Page 4

LT1011/LT1011A W U TYPICAL PERFOR A CE CHARACTERISTICS Input Bias Current 45 I FLOWS OUT INPUTS – 100 125 150 – TEMPERATURE ( ...

Page 5

W U TYPICAL PERFOR A CE CHARACTERISTICS Response Time Using GND Pin as Output 15 20mV 5mV 2mV – OUT –10 2k –15 – – 15V ...

Page 6

LT1011/LT1011A W U TYPICAL PERFOR A CE CHARACTERISTICS Input Offset Voltage vs Common Mode Voltage 2 2.0 1.5 1.0 0.5 LIMIT = V 0 – 0.5 –1.0 – V (OR GND WITH –1.5 SINGLE SUPPLY) ...

Page 7

U U APPLICATIONS INFORMATION of the comparator, but require a minimum input signal slew rate to be effective. DC hysteresis works for all input slew rates, but creates a shift in offset voltage dependent on the previous condition of the ...

Page 8

LT1011/LT1011A U U APPLICATIONS INFORMATION The input resistors should limit fault current to a reason- able value (0.1mA to 20mA). Power dissipation in the resistors must be considered for continuous faults, espe- cially when the LT1011 supplies are off. One ...

Page 9

U U APPLICATIONS INFORMATION In the “off” state switched off and both Q1 and Q2 turn 1 off. The collector of Q2 can be now held at any voltage – above V without conducting current, including voltages above ...

Page 10

LT1011/LT1011A U TYPICAL APPLICATIONS Strobing LT1011 3 – 6 TTL STROBE 1k 1011 TA04 NOTE: DO NOT GROUND STROBE PIN Using Clamp Diodes to Improve Frequency Response* CURRENT MODE 2 INPUT (DAC, ETC VOLTAGE ...

Page 11

U TYPICAL APPLICATIONS Combining Offset Adjust and Strobe + V 10k 20k 5 – 6 LT1011 1k + Direct Strobe Drive When CMOS* Logic + Uses Same V Supply as LT1011 8 – 6 LT1011 + *NOT APPLICABLE FOR TTL ...

Page 12

LT1011/LT1011A U TYPICAL APPLICATIONS 15V ZERO R1 TRIM 1k R2 0.01 F 18k LF398 3.9k –15V C1* C2** 0.1 F 15pF R4 5. 15V D4 LM329 ...

Page 13

U TYPICAL APPLICATIONS V IN 4.7k 0.1 F 100k 2 3 10k 0.033 F 100 AC INPUT 5k ZERO CROSS TRIM Fast Settling* Filter 1M 4.7k –15V 15V OFM-1A – 1. LT1011 15V ...

Page 14

LT1011/LT1011A W W SCHE ATIC DIAGRA OFFSET R27 R5 300 3k 160 Q5 Q31 Q30 INPUT D4 D6 (+) Q29 2 Q1 Q28 INPUT D5 D7 (–) Q27 3 Q26 Q25 R25 R26 1.6k 1.6k PACKAGE DESCRIPTION ...

Page 15

... FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 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 16

... Precision Comparator LT1116 12ns Single Supply Ground-Sensing Comparator LT1394 UltraFast Single Supply Comparator LT1671 60ns, Low Power Comparator UltraFast is a trademark of Linear Technology Corporation. Linear Technology Corporation 16 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 10Hz to 100kHz Voltage to Frequency Converter R4 ...

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