LTC6229 Amps Datasheet

LTC6229 Datasheet PDF, Equivalent


Part Number

LTC6229

Description

Low Distortion Rail-to-Rail Output Op Amps

Manufacture

Analog Devices

Total Page 30 Pages
PDF Download
Download LTC6229 Datasheet PDF


LTC6229
LTC6228/LTC6229
0.88nV/Hz 730MHz, 500V/µs,
Low Distortion Rail-to-Rail Output Op
Amps with Shutdown
FEATURES
DESCRIPTION
nn Ultra Low Voltage Noise: 0.88nV/√Hz
nn Low Distortion at High Speeds:
HD2/HD3 < −100dBc (Av = +1, 4VP-P, 2MHz, RL = 1kΩ)
nn High Slew Rate: 500V/μs
nn GBW = 890MHz
nn –3dB Frequency (AV = +1): 730MHz
nn Input Offset Voltage: 250μV Max Across Temperature
nn Offset Drift :0.4μV/°C
nn Input Common Mode Range Includes Negative Rail
nn Output Swings Rail-to-Rail
nn Supply Current: 16mA/Channel Typ
nn Shutdown Supply Current = 500µA
nn Operating Supply Range: 2.8V to 11.75V
nn Large Output Current: 80mA Min
nn Very High Open Loop Gain: 5.6V/μV (135dB), RL = 1kΩ
nn Operating Temp Range: –40°C to 125°C
nn Singles in 8-Lead SOIC, TSOT-23, DC-6, Duals in
DD10, MS8
APPLICATIONS
nn Optical Electronics: Fast Transimpedance Amplifiers
nn Driving High Dynamic Range A/D Converters
nn Active Filters
nn Video Amplifiers
nn High Speed Differential to Single-Ended Conversion
nn Low Voltage Hi-Fi Amplification
All registered trademarks and trademarks are the property of their respective owners.
The LTC®6228/LTC6229 are single/dual very fast, low
noise rail-to-rail output, unity gain stable op amps. They
have a gain-bandwidth product of 890MHz and a slew
rate of 500V/μs. The low input referred voltage noise of
only 0.88nV/√Hz and low distortion performance of bet-
t2eMr tHhzanm−a1ke00thdeBmatid4eVaPl-Pfoervaepnpfloicraltaiorgnes
signals as fast as
that require high
dynamic range and deal with high slew rate signals, such
as driving A/D converters. Additional features include
Shutdown and the ability to enable/disable internal bias
current cancellation to optimize noise performance.
The combination of low offset, low offset drift, high gain
and high CMRR make the LTC6228 family the superior
choice for wide dynamic range applications.
The LTC6228 family maintains excellent performance for
supply voltages of 2.8V to 11.75V and the devices are
specified at supplies of 3V, 5V and 10V(±5V). With an
input range extending to the negative rail and an out-
put range that encompasses the entire supply range, the
operational amplifier can accommodate wide swinging
signals, and single supply operation.
For space constrained PCB layouts, the LTC6228 is avail-
able in a 2mm × 2mm DFN and the LTC6229 is available in a
3mm × 3mm DFN. The amplifiers are also available in con-
ventional leaded packages. These amplifiers can be used
as improved replacements for many high speed op amps
to improve speed, noise, distortion and dynamic range.
TYPICAL APPLICATION
LTC6228 Based Driver for the LTC2387-18 SAR ADC
4.096V
0V
4.096V
0V
+ 7.5V
LTC6228
+
LTC6228
–2.5V
25Ω
82pF
82pF
25Ω
CLK
DCO
IN+ DA
DB
LTC2387-18
0.1µF
IN
TWOLANES
TESTPAT
VCM PD
REFB
CNV
6228 TA01a
LVDS
INTERFACE
SAMPLE
CLOCK
System Performance: 2 x LTC6228 Driving LTC2387-18
8192 Point FFT, –1dBFS
fSMPL = 15Msps, fIN = 1MHz
0
7.3VP-P 1MHz INPUT SIGNAL
–20
SNR = 93.4dB
SFDR = 95dB
THD = –93.8dB
–40
–60
–80
–100
–120
–140
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5
FREQUENCY (MHz)
6228 TA02
Rev. A
Document Feedback
For more information www.analog.com
1

LTC6229
LTC6228/LTC6229
ABSOLUTE MAXIMUM RATINGS (Note 1)
Total Supply Voltage (Vto V+).................................. 12V
Input Voltage (–IN, +IN, SHDN).... V– 0.3V to V+ + 0.3V
Input Current (–IN, +IN, SHDN) (Note 2)............... ±10mA
Operating Temperature Range
LTC6228I/LTC6229I (Note 4)................–40°C to 85°C
LTC6228H/LTC6229H (Note 4)........... –40°C to 125°C
Specified Temperature Range
LTC6228I/LTC6229I (Note 4)................–40°C to 85°C
LTC6228H/LTC6229H (Note 4)........... –40°C to 125°C
Output Current (OUT, FB)(Note 3)....................... ±100mA
Output Short-Circuit Duration..............Thermally Limited
Storage Temperature Range................... –65°C to 150°C
Maximum Junction Temperature........................... 150°C
Lead Temperature (Soldering 10s)
(MSOP/S8/TSOT Only).......................................... 300°C
PIN CONFIGURATION
TOP VIEW
FB 1
–IN 2
+IN 3
V4
8 SHDN
7 V+
6 OUT
5 V
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 150°C, θJA = 120°C/W (NOTE 7)
TOP VIEW
V+ 1
6 OUT
+IN 2 V75 –IN
V3
4 SHDN
DC PACKAGE
6-LEAD (2mm × 2mm) PLASTIC DFN
TJMAX = 150°C,
EXPOSED PAD (PIN 7) IS
Vθ–JA,
= 80°C/W (NOTE 7)
MUST BE SOLDERED
TO
PCB
OUT 1
V2
+IN 3
TOP VIEW
+–
6 V+
5 SHDN
4 –IN
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
TJMAX = 150°C, θJA = 192°C/W (NOTE 7)
OUTA
–INA
+INA
V
SHDNA
1
2
3
4
5
TOP VIEW
10 V+
9 OUTB
11
V
8 –INB
7 +INB
6 SHDNB
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
EXPOSED
TPJAMDA(XP=IN11215)°CIS, θVJ–A,
= 43°C/W
MUST BE
(NOTE 2)
SOLDERED
TO
PCB
OUTA 1
–INA 2
+INA 3
V4
TOP VIEW
V9
8 V+
7 OUTB
6 –INB
5 +INB
MSE PACKAGE
8-LEAD PLASTIC MSOP
TJMAX = 150°C,
EXPOSED PAD (PIN 9) IS
Vθ–JA, M=U3S5T°CB/WE S(ONLODTEER8E)D
TO
PCB
Rev. A
2 For more information www.analog.com


Features LTC6228/LTC6229 0.88nV/√Hz 730MHz, 50 0V/µs, Low Distortion Rail-to-Rail Out put Op Amps with Shutdown FEATURES DE SCRIPTION nn Ultra Low Voltage Noise: 0.88nV/√Hz nn Low Distortion at High Speeds: HD2/HD3 < −100dBc (Av = +1, 4VP-P, 2MHz, RL = 1kΩ) nn High Slew Rate: 500V/μs nn GBW = 890MHz nn –3 dB Frequency (AV = +1): 730MHz nn Input Offset Voltage: 250μV Max Across Temp erature nn Offset Drift :0.4μV/°C nn Input Common Mode Range Includes Negati ve Rail nn Output Swings Rail-to-Rail n n Supply Current: 16mA/Channel Typ nn S hutdown Supply Current = 500µA nn Oper ating Supply Range: 2.8V to 11.75V nn L arge Output Current: 80mA Min nn Very H igh Open Loop Gain: 5.6V/μV (135dB), R L = 1kΩ nn Operating Temp Range: –40 °C to 125°C nn Singles in 8-Lead SOIC , TSOT-23, DC-6, Duals in DD10, MS8 APP LICATIONS nn Optical Electronics: Fast Transimpedance Amplifiers nn Driving Hi gh Dynamic Range A/D Converters nn Acti ve Filters nn Video Amplifiers nn High Speed Differential to Single-Ended Conversion nn .
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