LT6230CS6 Linear Technology Corporation, LT6230CS6 Datasheet

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LT6230CS6

Manufacturer Part Number
LT6230CS6
Description
Manufacturer
Linear Technology Corporation
Datasheet

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APPLICATIO S
FEATURES
TYPICAL APPLICATIO
, LTC and LT are registered trademarks of Linear Technology Corporation.
Low Noise Voltage: 1.1nV/ Hz
Low Supply Current: 3.5mA/Amp Max
Low Offset Voltage: 350 V Max
Gain Bandwidth Product:
LT6230: 215MHz; A
LT6230-10: 1450MHz; A
Wide Supply Range: 3V to 12.6V
Output Swings Rail-to-Rail
Common Mode Rejection Ratio 115dB Typ
Output Current: 30mA
Operating Temperature Range – 40 C to 85 C
LT6230 Shutdown to 10 A Maximum
LT6230/LT6230-10 in SOT-23 Package
Dual LT6231 in 8-Pin SO and Tiny DFN Packages
LT6232 in 16-Pin SSOP Package
Ultrasound Amplifiers
Low Noise, Low Power Signal Processing
Active Filters
Driving A/D Converters
Rail-to-Rail Buffer Amplifiers
IN
IN
+
R1
10
Low Noise Low Power Instrumentation Amplifier
+
+
1/2 LT6231
1/2 LT6231
V
V
S
S
+
196
196
R2
R3
U
A
BW = 5.1MHz
V
V
S
= 40
= 1.5V to 5V
V
499
499
R4
R5
1
V
10
+
I
E
MEASUREMENT BW = 8MHz
U
LT6202
S
N
= 10mA
= 5.8 V
V
V
S
S
+
499
499
R6
R7
RMS
INPUT REFERRED,
623012 TA01a
V
OUT
1.1nV/ Hz, 3.5mA Op Amp Family
DESCRIPTIO
The LT
noise, rail-to-rail output unity gain stable op amps that
feature 1.1nV/ Hz noise voltage and draw only 3.5mA of
supply current per amplifier. These amplifiers combine
very low noise and supply current with a 215MHz gain
bandwidth product, a 70V/ s slew rate and are optimized
for low supply voltage signal conditioning systems. The
LT6230-10 is a single amplifier optimized for higher gain
applications resulting in higher gain bandwidth and slew
rate. The LT6230 and LT6230-10 include an enable pin
that can be used to reduce the supply current to less than
10 A.
The amplifier family has an output that swings within
50mV of either supply rail to maximize the signal dynamic
range in low supply applications and is specified on 3.3V,
5V and 5V supplies. The e
amplifier is among the most noise efficient of any op amp.
The LT6230/LT6230-10 is available in the 6-lead SOT-23
package and the LT6231 dual is available in the 8-pin SO
package with standard pinouts. For compact layouts, the
dual is also available in a tiny dual fine pitch leadless
package (DFN). The LT6232 is available in the 16-pin
SSOP package.
215MHz, Rail-to-Rail Output,
®
6230/LT6231/LT6232 are single/dual/quad low
6
5
4
3
2
1
0
10
Noise Voltage and Unbalanced
Noise Current vs Frequency
LT6230/LT6230-10/
LT6230/LT6230-10/
U
100
FREQUENCY (Hz)
n
LT6231/LT6232
LT6231/LT6232
• I
1k
SUPPLY
NOISE CURRENT
NOISE VOLTAGE
10k
V
T
V
A
S
CM
= 25 C
= 2.5V
623012 TA01b
product of 1.9 per
= 0V
100k
sn623012 623012fas
6
5
4
3
2
1
0
1

Related parts for LT6230CS6

LT6230CS6 Summary of contents

Page 1

... Dual LT6231 in 8-Pin SO and Tiny DFN Packages LT6232 in 16-Pin SSOP Package U APPLICATIO S Ultrasound Amplifiers Low Noise, Low Power Signal Processing Active Filters Driving A/D Converters Rail-to-Rail Buffer Amplifiers , LTC and LT are registered trademarks of Linear Technology Corporation. U TYPICAL APPLICATIO Low Noise Low Power Instrumentation Amplifier + ...

Page 2

... Storage Temperature Range (DD Package) ...................................... – 125 C Lead Temperature (Soldering, 10 sec).................. 300 ORDER PART NUMBER TOP VIEW LT6230CS6 OUT A 1 LT6230IS6 – – LT6230CS6- LT6230IS6-10 – PART DD PACKAGE MARKING* 8-LEAD (3mm 3mm) PLASTIC DFN T = 125 C, JMAX LTAFJ ...

Page 3

ELECTRICAL CHARACTERISTICS ENABLE = 0V, unless otherwise noted. SYMBOL PARAMETER V Input Offset Voltage OS Input Offset Voltage Match (Channel-to-Channel) (Note 6) I Input Bias Current B I Match (Channel-to-Channel) (Note Input Offset Current OS Input Noise ...

Page 4

LT6230/LT6230-10/ LT6231/LT6232 ELECTRICAL CHARACTERISTICS ENABLE = 0V, unless otherwise noted. SYMBOL PARAMETER I ENABLE Pin Current ENABLE V ENABLE Pin Input Voltage LOW L V ENABLE Pin Input Voltage HIGH H Output Leakage Current t Turn-On Time ON t Turn-Off ...

Page 5

ELECTRICAL CHARACTERISTICS temperature range 5V, 0V 3.3V, 0V SYMBOL PARAMETER V Output Voltage Swing HIGH (Note Short-Circuit Current SC I Supply Current per Amplifier S Disabled Supply Current per Amplifier ...

Page 6

LT6230/LT6230-10/ LT6231/LT6232 ELECTRICAL CHARACTERISTICS temperature range 5V, 0V 3.3V, 0V SYMBOL PARAMETER PSRR Match (Channel-to-Channel) (Note 6) Minimum Supply Voltage (Note 7) V Output Voltage Swing LOW (Note Output Voltage ...

Page 7

ELECTRICAL CHARACTERISTICS 5V 0V, ENABLE = 0V, unless otherwise noted OUT SYMBOL PARAMETER Input Resistance C Input Capacitance IN A Large-Signal Gain VOL V Input Voltage Range ...

Page 8

LT6230/LT6230-10/ LT6231/LT6232 ELECTRICAL CHARACTERISTICS temperature range 5V OUT SYMBOL PARAMETER V Input Offset Voltage OS Input Offset Voltage Match (Channel-to-Channel) (Note Input Offset Voltage Drift (Note 10 Input ...

Page 9

ELECTRICAL CHARACTERISTICS temperature range 5V OUT SYMBOL PARAMETER V Input Offset Voltage OS Input Offset Voltage Match (Channel-to-Channel) (Note Input Offset Voltage Drift (Note 10 Input Bias Current ...

Page 10

LT6230/LT6230-10/ LT6231/LT6232 ELECTRICAL CHARACTERISTICS Note 1: Absolute maximum ratings are those values beyond which the life of the device may be impaired. Note 2: Inputs are protected by back-to-back diodes. If the differential input voltage exceeds 0.7V, the input current ...

Page 11

W U TYPICAL PERFOR A CE CHARACTERISTICS (LT6230/LT6231/LT6232) Output Saturation Voltage vs Load Current (Output High 5V 125 – 0.01 ...

Page 12

LT6230/LT6230-10/ LT6231/LT6232 W U TYPICAL PERFOR A CE CHARACTERISTICS (LT6230/LT6231/LT6232) Noise Voltage and Unbalanced Noise Current vs Frequency 2. NOISE CURRENT 2 1 NOISE ...

Page 13

W U TYPICAL PERFOR A CE CHARACTERISTICS (LT6230/LT6231/LT6232) Power Supply Rejection Ratio vs Frequency 120 100 POSITIVE SUPPLY 60 NEGATIVE SUPPLY 40 20 ...

Page 14

LT6230/LT6230-10/ LT6231/LT6232 W U TYPICAL PERFOR A CE CHARACTERISTICS (LT6230/LT6231/LT6232) Distortion vs Frequency – 100 , 3RD V L – (P–P) OUT R = 100 , 2ND –60 ...

Page 15

W U TYPICAL PERFOR A CE CHARACTERISTICS (LT6230-10) Gain Bandwidth and Phase Margin vs Temperature 1700 1500 S GAIN BANDWIDTH 1300 1100 900 PHASE MARGIN ...

Page 16

LT6230/LT6230-10/ LT6231/LT6232 W U TYPICAL PERFOR A CE CHARACTERISTICS (LT6230-10 and 3 Harmonic Distortion vs Frequency – – (P–P) OUT R = 100 , 2ND L ...

Page 17

U U APPLICATIO S I FOR ATIO Amplifier Characteristics Figure simplified schematic of the LT6230/LT6231/ LT6232, which has a pair of low noise input transistors Q1 and Q2. A simple current mirror Q3/Q4 converts the differential signal ...

Page 18

LT6230/LT6230-10/ LT6231/LT6232 U U APPLICATIO S I FOR ATIO With || the total noise of the amplifier is (1.1nV) +(1.1nV) = 1.55nV Below this resistance value, ...

Page 19

U U APPLICATIO S I FOR ATIO Single Supply, Low Noise, Low Power, Bandpass Filter with Gain = 47pF 732 + 1000pF 10k 732 – LT6230 + 0.1 ...

Page 20

LT6230/LT6230-10/ LT6231/LT6232 PACKAGE DESCRIPTIO 0.62 0.95 MAX REF 3.85 MAX 2.62 REF RECOMMENDED SOLDER PAD LAYOUT PER IPC CALCULATOR 0.20 BSC DATUM ‘A’ 0.30 – 0.50 REF NOTE: 1. DIMENSIONS ARE IN MILLIMETERS 2. DRAWING NOT TO SCALE 3. DIMENSIONS ...

Page 21

PACKAGE DESCRIPTIO 3.5 0.05 1.65 0.05 2.15 0.05 (2 SIDES) 0.25 0.05 RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS PIN 1 TOP MARK (NOTE 6) 0.200 REF NOTE: 1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION OF (WEED-1) ...

Page 22

LT6230/LT6230-10/ LT6231/LT6232 PACKAGE DESCRIPTIO .050 BSC .245 MIN .030 .005 TYP RECOMMENDED SOLDER PAD LAYOUT .010 – .020 (0.254 – 0.508) .008 – .010 (0.203 – 0.254) (0.406 – 1.270) NOTE: 1. DIMENSIONS IN 2. DRAWING NOT TO SCALE 3. ...

Page 23

... 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 24

... Operation, 550 V Max V 0.95nV Hz, Rail-to-Rail Input and Output 1.9nV/ Hz, 3mA Max, 100MHz Gain Bandwidth www.linear.com which flows into PD = –I • 1.5k. C1 ensures stability and good OUT PD 50ns/DIV 623012 TA02b OS , 3.5nV sn623012 623012fas LT/TP 0304 1K REV A • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 2003 ...

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