|
|
PDF LTC6248 Data sheet ( Hoja de datos )
| Número de pieza | LTC6248 | |
| Descripción | (LTC6246 - LTC6248) 1mA Power Efficient Rail-to-Rail I/O Op Amps | |
| Fabricantes | Linear Technology Corporation | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de LTC6248 (archivo pdf) en la parte inferior de esta página. Total 24 Páginas | ||
|
No Preview Available !
FEATURES
n Gain Bandwidth Product: 180MHz
n –3dB Frequency (AV = 1): 120MHz
n Low Quiescent Current: 1mA Max
n High Slew Rate: 90V/μs
n Input Common Mode Range Includes Both Rails
n Output Swings Rail-to-Rail
n Low Broadband Voltage Noise: 4.2nV/√Hz
n Power-Down Mode: 42μA
n Fast Output Recovery
n Supply Voltage Range: 2.5V to 5.25V
n Input Offset Voltage: 0.5mV Max
n Input Bias Current: 100nA
n Large Output Current: 50mA
n CMRR: 110dB
n Open Loop Gain: 45V/mV
n Operating Temperature Range: –40°C to 125°C
n Single in 6-Pin TSOT-23
n Dual in MS8, 2mm × 2mm Thin DFN,TS0T-23, MS10
n Quad in MS16
APPLICATIONS
n Low Voltage, High Frequency Signal Processing
wwwn.DaDtarSivheinegt4UA./cDomConverters
n Rail-to-Rail Buffer Amplifiers
n Active Filters
n Video Amplifiers
n Fast Current Sensing Amplifiers
n Battery Powered Equipment
LTC6246/LTC6247/LTC6248
180MHz, 1mA Power
Efficient Rail-to-Rail
I/O Op Amps
DESCRIPTION
The LTC®6246/LTC6247/LTC6248 are single/dual/quad low
power, high speed unity gain stable rail-to-rail input/output
operational amplifiers. On only 1mA of supply current they
feature an impressive 180MHz gain-bandwidth product,
90V/μs slew rate and a low 4.2nV/√Hz of input-referred
noise. The combination of high bandwidth, high slew rate,
low power consumption and low broadband noise makes
the LTC6246/LTC6247/LTC6248 unique among rail-to-rail
input/output op amps with similar supply currents. The
LTC6246/LTC6247/LTC6248 are ideal for lower supply
voltage high speed signal conditioning systems.
The LTC6246/LTC6247/LTC6248 maintain high efficiency
performance from supply voltage levels of 2.5V to 5.25V
and are fully specified at supplies of 2.7V and 5.0V.
For applications that require power-down, the LTC6246
and the LTC6247 in MS10 offer a shutdown pin which
disables the amplifier and reduces current consumption
to 42μA.
The LTC6246/LTC6247/LTC6248 can be used as plug-in
replacements for many commercially available op amps
to reduce power or to improve input/output range and
performance.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
Low Noise Low Distortion Gain = 2 ADC Driver
3.3V
VIN +
LTC6246
–
499Ω
1%
499Ω
1%
10pF
3.3V 2.5V
VDD VREF
CS
SDO
AIN LTC2366
SCK
GND OVDD
624678 TA01a
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
0
350kHz FFT Driving ADC
fIN = 350.195kHz
fSAMP = 2.2Msps
SFDR = 82dB
SNR = 70dB
1024 POINT FFT
200 400 600 800 1000
FREQUENCY (kHz)
624678 TA01b
624678f
1
1 page  
LTC6246/LTC6247/LTC6248
ELECTRICAL CHARACTERISTICS (VS = 5V) The l denotes the specifications which apply across the
specified temperature range, otherwise specifications are at TA = 25°C. For each amplifier VS = 5V, 0V; VSHDN = 2V; VCM = VOUT = 2.5V,
unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
HD2/HD3
ΔG
Δθ
Harmonic Distortion
RL = 1k to Half Supply
RL = 100Ω to Half Supply
Differential Gain (Note 14)
Differential Phase (Note 14)
Crosstalk
fC = 100kHz, VO = 2VP-P
fC = 1MHz, VO = 2VP-P
fC = 2MHz, VO = 2VP-P
fC = 100kHz, VO = 2VP-P
fC = 1MHz, VO = 2VP-P
fC = 2MHz, VO = 2VP-P
AV = 1, RL = 1k, VS = ±2.5V
AV = 1, RL = 1k, VS = ±2.5V
AV = –1, RL = 1k to Half Supply,
VOUT = 2VP-P, f = 1MHz
110/90
88/80
78/62
90/79
66/60
59/51
0.2
0.08
–90
dBc
dBc
dBc
%
Deg
dB
ELECTRICAL CHARACTERISTICS (VS = 2.7V) The l denotes the specifications which apply across the
specified temperature range, otherwise specifications are at TA = 25°C. For each amplifier VS = 2.7V, 0V; VSHDN = 2V; VCM = VOUT =
1.35V, unless otherwise noted.
SYMBOL
VOS
PARAMETER
Input Offset Voltage
ΔVOS
Input Offset Voltage Match
(Channel-to-Channel) (Note 8)
VOS TC
IB
Input Offset Voltage Drift
Input Bias Current (Note 7)
www.DataSheet4U.com
IOS Input Offset Current
en Input Noise Voltage Density
Input 1/f Noise Voltage
in Input Noise Current Density
CIN Input Capacitance
RIN Input Resistance
AVOL Large Signal Voltage Gain
CONDITIONS
VCM = Half Supply
VCM = V+ – 0.5V, NPN Mode
VCM = Half Supply
VCM = V+ – 0.5V, NPN Mode
VCM = Half Supply
VCM = V+ – 0.5V, NPN Mode
VCM = Half Supply
VCM = V+ – 0.5V, NPN Mode
f = 100kHz
f = 0.1Hz to 10Hz
f = 100kHz
Differential Mode
Common Mode
Differential Mode
Common Mode
RL = 1k to Half Supply
(Note 12)
RL = 100Ω to Half Supply
(Note 12)
MIN
–100
l –300
–1.75
l –2.25
–700
l –1000
–3.5
l –4
l
–450
l –600
50
l0
–250
l –350
–250
l –350
15
l 7.5
2
l 1.3
TYP
500
0.75
–20
0.1
2
–100
350
–10
–10
4.6
1.7
1.8
2
0.8
32
12
25
7.5
MAX UNITS
1000 μV
1400 μV
3.25 mV
3.75 mV
700 μV
1000 μV
3.5 mV
4 mV
μV/°C
450 nA
600 nA
1000 nA
1500 nA
250 nA
350 nA
250 nA
350 nA
nV/√Hz
μVP-P
pA/√Hz
pF
pF
kΩ
MΩ
V/mV
V/mV
V/mV
V/mV
624678f
5
5 Page 
LTC6246/LTC6247/LTC6248
TYPICAL PERFORMANCE CHARACTERISTICS
Output Impedance vs Frequency
1000
VS = ±2.5V
100
AV = 10
10
AV = 2
1 AV = 1
0.1
0.01
0.001
100k
1M 10M 100M 1G
FREQUENCY (Hz)
624678 G31
Slew Rate vs Temperature
140 AV = –1, RL = 1k, VOUT = 4VP-P (±2.5V),
2VP-P (±1.35V) SLEW RATE MEASURED
AT MIDDLE 2/3 OF OUTPUT
120
FALLING, VS = ±2.5V
100
RISING, VS = ±2.5V
80 FALLING, VS = ±1.35V
60 RISING, VS = ±1.35V
www.Data4S0heet4U.com
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
624678 G34
Distortion vs Frequency
(AV = 1, 5V)
–40
VS = ±2.5V
–50 VOUT = 2VP-P
AV = 1
–60 RL = 100Ω, 3RD
–70 RL = 100Ω, 2ND
–80
–90
–100
RL = 1kΩ, 3RD
–110
–120
0.01
RL = 1kΩ, 2ND
0.1 1
FREQUENCY (MHz)
10
624678 G37
Common Mode Rejection Ratio
vs Frequency
110
100
TA = 25°C
VS = ±2.5V
90
80
70
60
50
40
30
20
10
0
–10
10 100 1k 10k 100k 1M 10M 100M 1G
FREQUENCY (Hz)
624678 G31
Power Supply Rejection Ratio
vs Frequency
80
VS = ±2.5V
70 TA = 25°C
60
NEGATIVE SUPPLY
50
40 POSITIVE SUPPLY
30
20
10
0
–10
10 100 1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
624678 G33
Series Output Resistor
vs Capacitive Load (AV = 1)
80
VS = ±2.5V
70 VOUT = 100mVP-P
AV = 1
VIN
–AV = 1
+
RS VOUT
60 RS = 10Ω
CL
50
40 RS = 20Ω
30
20
10 RS = 49.9Ω
0
10 100 1000
CAPACITIVE LOAD (pF)
10000
624678 G35
Series Output Resistor
vs Capacitive Load (AV = 2)
80
500Ω
70
60
500Ω
VIN
–
+
RS
AV = 2
50 RS = 10Ω
VOUT
CL
40 RS = 20Ω
30
RS = 49.9Ω
20 VS = ±2.5V
10
VOUT = 200mVP-P
RF = RG = 500Ω,
0 AV = 2
10 100
1000
CAPACITIVE LOAD (pF)
10000
624678 G36
Distortion vs Frequency
(AV = 1, 2.7V)
–40
VS = ±1.35V
–50 VOUT = 1VP-P
AV = 1
RL = 100Ω, 3RD
–60
–70 RL = 100Ω, 2ND
–80
RL = 1kΩ, 2ND
–90
–100
RL = 1kΩ, 3RD
–110
–120
0.01
0.1 1
FREQUENCY (MHz)
10
624678 G38
Distortion vs Frequency
(AV = 2, 5V)
–40
VS = ±2.5V
–50 VOUT = 2VP-P
AV = 2
RL = 100Ω, 3RD
–60
–70 RL = 100Ω, 2ND
–80
RL = 1kΩ, 3RD
–90
–100
–110
RL = 1kΩ, 2ND
–120
0.01
0.1 1
FREQUENCY (MHz)
10
624678 G39
624678f
11
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet LTC6248.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| LTC6240 | (LTC6240 - LTC6242) CMOS Op Amps |  Linear Technology |
| LTC6241 | (LTC6240 - LTC6242) CMOS Op Amps | Linear Technology |
| LTC6242 | (LTC6240 - LTC6242) CMOS Op Amps | Linear Technology |
| LTC6244 | CMOS Op Amp | Linear Technology |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |