LT1722 LINER [Linear Technology], LT1722 Datasheet

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LT1722

Manufacturer Part Number
LT1722
Description
Single, Dual, Quad 200MHz Low Noise Precision Op Amps
Manufacturer
LINER [Linear Technology]
Datasheet

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FEATURES
TYPICAL APPLICATIO
APPLICATIO S
SOURCE
, LTC and LT are registered trademarks of Linear Technology Corporation.
3.8nV/ Hz Input Noise Voltage
3.7mA Supply Current
200MHz Gain Bandwidth
Low Total Harmonic Distortion: – 85dBc at 1MHz
70V/ s Slew Rate
400 V Maximum Input Offset Voltage
300nA Maximum Input Bias Current
Unity-Gain Stable
Capacitive Load Stable Up to 100pF
23mA Minimum Output Current
Specified at 5V and Single 5V
Video and RF Amplification
ADSL, HDSL II, VDSL Receivers
Active Filters
Wideband Amplifiers
Buffers
Data Acquisition Systems
75
V
IN
R1
75
750
R3
R2
2k
+
+
1/2 LT1723
1/2 LT1723
U
Differential Video Line Driver
R5 2k
R4 2k
C1 5pF
C2 5pF
–V
V
IN
IN
62.5
62.5
U
R7
R6
1723 TA01
TWISTED PAIR
125
CAT-5
Low Noise Precision Op Amps
+V
–V
–V
V
IN
OUT
OUT
IN
Single, Dual, Quad 200MHz
/2 62.5
/2
DESCRIPTIO
The LT
noise, low power, high speed operational amplifiers. These
products feature lower input offset voltage, lower input
bias current and higher DC gain than devices with compa-
rable bandwidth. The 200MHz gain bandwidth ensures
high open-loop gain at video frequencies.
The low input noise voltage is achieved with reduced
supply current. The total noise is optimized for a source
resistance between 0.8k and 12k. Due to the input bias
current cancellation technique used, the resistance seen
by each input does not need to be balanced.
The output drives a 150 load to 3V with 5V supplies.
On a single 5V supply the output swings from 1.5V to 3.5V
with a 500 load connected to 2.5V. The amplifier is unity-
gain stable (C
The LT1722/LT1723/LT1724 are manufactured on Linear
Technology’s advanced low voltage complementary
bipolar process. The LT1722 is available in the SO-8 and
5-pin SOT-23 packages. The LT1723 is available in the
SO-8 and MS8 packages. The LT1724 is available in the
14-lead SO package.
LOAD
62.5
LOAD
®
1722/LT1723/LT1724 are single/dual/quad, low
0.5V/DIV
0.5V/DIV
1V/DIV
–V
+V
LT1722/LT1723/LT1724
OUT
OUT
V
LOAD
IN
U
Line Driver Mulitburst Video Signal
100pF).
172234fa
1
1723 TA02

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LT1722 Summary of contents

Page 1

... The amplifier is unity- gain stable (C The LT1722/LT1723/LT1724 are manufactured on Linear Technology’s advanced low voltage complementary bipolar process. The LT1722 is available in the SO-8 and 5-pin SOT-23 packages. The LT1723 is available in the SO-8 and MS8 packages. The LT1724 is available in the 14-lead SO package. ...

Page 2

... PART MS8 PACKAGE MARKING 8-LEAD PLASTIC MSOP T = 150 C, JMAX 1723 1723I ORDER PART NUMBER LT1724CS LT1724IS ORDER PART NUMBER LT1722CS5 + 5 V LT1722IS5 – 4 –IN S5 PART MARKING* = 250 C/W JA LTZB ORDER PART NUMBER LT1723CMS8 + 8 V LT1723IMS8 7 OUT B 6 – +IN B ...

Page 3

... 150 IN OUT P 1MHz 3V 150 OUT L Per Amplifier CONDITIONS (Note 6) LT1722 SOT-23 and LT1723 MS8 f = 10kHz f = 10kHz V = 1.5V to 3.5V CM Differential V = 1. 1.5V to 3.5V 500 OUT 500 , V = 10mV 500 , V = 10mV L IN MIN ...

Page 4

... V IN P 0.1V 500 IN OUT 1MHz 1.5V to 3.5V 500 OUT L Per Amplifier CONDITIONS (Note 6) LT1722 SOT-23 and LT1723 MS8 (Note 3. 2. 500 OUT 3V 150 OUT 500 , V = 10mV 150 , V = 10mV ...

Page 5

... 500 , V = 10mV 3.5V or 1.5V, 10mV Overdrive OUT V = 2.5V OUT –1, (Note 200kHz V = 1.5V to 3.5V 500 OUT L CONDITIONS (Note 6) LT1722 SOT-23 and LT1723 MS8 (Note 3. 2. 500 OUT 3V 150 OUT 500 , V = 10mV 150 , V ...

Page 6

... Note 4: The LT1722C/LT1722I, LT1723C/LT1723I, LT1724C/LT1724I are guaranteed functional over the operating temperature range of – Note 5: The LT1722C/LT1723C/LT1724C are guaranteed to meet specified performance from The LT1722C/LT1723C/LT1724C are 6 The denotes the specifications which apply over the temperature range of to 2.5V, unless otherwise noted. (Note 5) ...

Page 7

... SUPPLY VOLTAGE ( V) 1723 G02 Input Noise Spectral Density 100 0.1 0.01 0 100 FREQUENCY (kHz) 1723 G05 Warm-Up Drift vs Time 30 LT1722S8 TYPICAL DATA 2. 100 ...

Page 8

... LT1722/LT1723/LT1724 W U TYPICAL PERFOR A CE CHARACTERISTICS V vs Temperature OS 200 TYPICAL PART 100 –100 –200 V = 2.5V S –300 –400 –500 –60 –40 – 100 120 TEMPERATURE ( C) 1723 G10 Open-Loop Gain vs Temperature 5V 500 150 ...

Page 9

... – 2.5V – 500 – 50 – 100 125 TEMPERATURE ( C) 1723 G40 LT1722/LT1723/LT1724 Gain vs Frequency 500 ...

Page 10

... LT1722/LT1723/LT1724 W U TYPICAL PERFOR A CE CHARACTERISTICS Slew Rate vs Supply Voltage IN_P-P S OUT_MES + AT 2 IN_P-P 75 – – 1.5V OUT_MES – 500 5.5 2 2.5 3 3 6.5 SUPPLY VOLTAGE ( V) 1723 G25 Harmonic Distortion vs Frequency ...

Page 11

... V 50mV/DIV 50ns/DIV 0pF L Small-Signal Transient 50mV/DIV A = –1 50ns/DIV 500 500 0pF L LT1722/LT1723/LT1724 Settling Time vs Output Step 3.0 2.5 0.1% SETTLING 2.0 1.5 0.01% SETTLING 1.0 0 – 500 0pF F 0.01% SETTLING 0.1% SETTLING 60 70 100 110 140 80 90 ...

Page 12

... DC accuracy and also increases noise. Total Input Noise The total input noise of the LT1722/LT1723/LT1724 is optimized for a source resistance between 0.8k and 12k. Within this range, the total input noise is dominated by the noise of the source resistance itself. When the source resistance is below 0 ...

Page 13

... D1 and D2 protect against input reversed biasing. The L remaining part of the circuit assures optimum voltage and current biases for all stages. Low noise, reduced current supply, high speed and accurate parameters are distinctive features of the LT1722/ LT1723/LT1724 150 , L 2 /150 ] = 203mW R2 ...

Page 14

... LT1722/LT1723/LT1724 PACKAGE DESCRIPTIO 0.62 MAX 3.85 MAX 2.62 REF RECOMMENDED SOLDER PAD LAYOUT PER IPC CALCULATOR 0.20 BSC DATUM ‘A’ 0.35 – 0.55 REF NOTE: 1. DIMENSIONS ARE IN MILLIMETERS 2. DRAWING NOT TO SCALE 3. DIMENSIONS ARE INCLUSIVE OF PLATING 4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR 5. MOLD FLASH SHALL NOT EXCEED 0.254mm 6 ...

Page 15

... N .053 – .069 (1.346 – 1.752) 0 – 8 TYP .014 – .019 (0.355 – 0.483) TYP INCHES LT1722/LT1723/LT1724 0.52 (.206 REF 3.00 0.102 (.118 .004) NOTE 0.86 (.034) REF 0.13 0.076 (.005 .003) MSOP (MS8) 0802 .337 – ...

Page 16

... LT1722/LT1723/LT1724 U TYPICAL APPLICATIO 4- to 2-Wire Local Echo Cancellation Differential Receiver Amplifier – 1/2 LT1739 + V D LINE 100 DRIVER LINE + 1/2 LT1739 – RELATED PARTS PART NUMBER DESCRIPTION LT1677 Single, Low Noise Rail-to-Rail Amplifier LT1800/LT1801/LT1802 Single/Dual/Quad, Low Power, 80MHz Rail-to-Rail Precision Amplifier ...

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