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PDF LT1499 Data sheet ( Hoja de datos )
| Número de pieza | LT1499 | |
| Descripción | 10MHz/ 6V/us/ Dual/Quad Rail-to-Rail Input and Output Precision C-Load Op Amps | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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LT1498/LT1499
10MHz, 6V/µs, Dual/Quad
Rail-to-Rail Input and Output
Precision C-Load Op Amps
FEATURES
DESCRIPTION
n Rail-to-Rail Input and Output
n 475μV Max VOS from V+ to V–
n Gain-Bandwidth Product: 10MHz
n Slew Rate: 6V/μs
n Low Supply Current per Amplifier: 1.7mA
n Input Offset Current: 65nA Max
n Input Bias Current: 650nA Max
n Open-Loop Gain: 1000V/mV Min
n Low Input Noise Voltage: 12nV/√Hz Typ
n Wide Supply Range: 2.2V to ±15V
n Large Output Drive Current: 30mA
n Stable for Capacitive Loads Up to 10,000pF
n Dual in 8-Pin PDIP and SO Package
n Quad in Narrow 14-Pin SO
APPLICATIONS
n Driving A-to-D Converters
n Active Filters
n Rail-to-Rail Buffer Amplifiers
n Low Voltage Signal Processing
n Battery-Powered Systems
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and C-Load
is a trademark of Linear Technology Corporation. All other trademarks are the property of their
respective owners.
The LT®1498/LT1499 are dual/quad, rail-to-rail input and
output precision C-Load™ op amps with a 10MHz gain-
bandwidth product and a 6V/μs slew rate.
The LT1498/LT1499 are designed to maximize input
dynamic range by delivering precision performance over
the full supply voltage. Using a patented technique, both
input stages of the LT1498/LT1499 are trimmed, one at
the negative supply and the other at the positive supply.
The resulting guaranteed common mode rejection is much
better than other rail-to-rail input op amps. When used as
a unity-gain buffer in front of single supply 12-bit A-to-D
converters, the LT1498/LT1499 are guaranteed to add less
than 1LSB of error even in single 3V supply systems.
With 110dB of supply rejection, the LT1498/LT1499 main-
tain their performance over a supply range of 2.2V to 36V
and are specified for 3V, 5V and ±15V supplies. The inputs
can be driven beyond the supplies without damage or phase
reversal of the output. These op amps remain stable while
driving capacitive loads up to 10,000pF.
The LT1498 is available with the standard dual op amp
configuration in 8-pin PDIP and SO packaging. The LT1499
features the standard quad op amp configuration and is
available in a 14-pin plastic SO package. These devices
can be used as plug-in replacements for many standard
op amps to improve input/output range and precision.
TYPICAL APPLICATION
Single Supply 100kHz 4th Order Butterworth Filter
6.81k
VIN
6.81k
11.3k
330pF
100pF
–
1/2 LT1498
+
V+/2
5.23k
5.23k
10.2k
47pF
V+
–
1000pF
1/2 LT1498
+
1498 TA01
VOUT
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
100
Frequency Response
VIN = 2.7VP-P
V+ = 3V
1k 10k 100k 1M 10M
FREQUENCY (Hz)
1498 TA02
14989fg
1
1 page  
LT1498/LT1499
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the temperature range
–40°C < TA < 85°C. VS = 5V, 0V; VS = 3V, 0V; VCM = VOUT = half supply, unless otherwise noted. (Note 4)
SYMBOL
VOS
VOS TC
ΔVOS
IB
ΔIB
IOS
ΔIOS
AVOL
CMRR
PSRR
VOL
VOH
ISC
IS
GBW
PARAMETER
CONDITIONS
Input Offset Voltage
VCM = V+
VCM = V– + 0.1V
Input Offset Voltage Drift (Note 3)
Input Offset Voltage Shift
VCM = V+
VCM = V– + 0.1V to V+
Input Offset Voltage Match (Channel-to-Channel) VCM = V– + 0.1V, V+ (Note 5)
Input Bias Current
VCM = V+
VCM = V– + 0.1V
Input Bias Current Shift
VCM = V– + 0.1V to V+
Input Bias Current Match (Channel-to-Channel)
Input Offset Current
Input Offset Current Shift
VCM
VCM
=
=
V+
V–
(Note 5)
+ 0.1V (Note
5)
VCM = V+
VCM = V– + 0.1V
VCM = V– + 0.1V to V+
Large-Signal Voltage Gain
Common Mode Rejection Ratio
CMRR Match (Channel-to-Channel) (Note 5)
Power Supply Rejection Ratio
PSRR Match (Channel-to-Channel) (Note 5)
Output Voltage Swing (Low) (Note 6)
Output Voltage Swing (High) (Note 6)
Short-Circuit Current
Supply Current per Amplifier
VS = 5V, VO = 75mV to 4.8V, RL = 10k
VS = 3V, VO = 75mV to 2.8V, RL = 10k
VS = 5V, VCM = V– + 0.1V to V+
VS = 3V, VCM = V– + 0.1V to V+
VS = 5V, VCM = V– + 0.1V to V+
VS = 3V, VCM = V– + 0.1V to V+
VS = 2.5V to 12V, VCM = VO = 0.5V
VS = 2.5V to 12V, VCM = VO = 0.5V
No Load
ISINK = 0.5mA
ISINK = 2.5mA
No Load
ISOURCE = 0.5mA
ISOURCE = 2.5mA
VS = 5V
VS = 3V
Gain-Bandwidth Product (Note 7)
MIN TYP MAX UNITS
l
250 750
μV
l
250 750
μV
l 0.5 2.5 μV/°C
l 1.5 4.0 μV/°C
l
250 650
μV
l
300 1500
μV
l0
350 975
l –975 –350
0
nA
nA
l
700 1950
nA
l0
l –180
30
–30
180
0
nA
nA
l
15 110
nA
l
15 110
nA
l
30 220
nA
l 400
l 300
2500
2000
V/mV
V/mV
l 77
l 73
86
81
dB
dB
l 72
l 69
86
83
dB
dB
l 86
100
dB
l 80
100
dB
l
18 40
mV
l
45 80
mV
l
110 220
mV
l
3.5 15
mV
l
60 120
mV
l
170 300
mV
l ±7.5
l ±7.5
±15
±15
mA
mA
l
2.0 2.7
mA
l 5.8
8.5
MHz
SR Slew Rate (Note 8)
VS = 5V, AV = –1, RL = Open, VO = 4V
VS = 3V, AV = –1, RL = Open
l 2.2
l 1.9
3.6
3.2
V/μs
V/μs
14989fg
5
5 Page 
LT1498/LT1499
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the temperature range
–40°C < TA < 125°C. VS = ±15V, VCM = 0V, VOUT = 0V, unless otherwise noted. (Note 4)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VOS Input Offset Voltage
VCM = V+ – 0.5V
VCM = V– + 0.5V
l
350 1300
μV
l
350 1300
μV
VOS TC
ΔVOS
IB
ΔIB
IOS
ΔIOS
Input Offset Voltage Drift (Note 3)
VCM = V+ – 0.5V
Input Offset Voltage Shift
VCM = V– + 0.5V to V+ – 0.5V
Input Offset Voltage Match (Channel-to-Channel) VCM = V– + 0.5V, V+ – 0.5V (Note 5)
Input Bias Current
VCM = V+ – 0.5V
VCM = V– + 0.5V
Input Bias Current Shift
VCM = V– + 0.5V to V+ – 0.5V
Input Bias Current Match (Channel-to-Channel)
VCM
VCM
=
=
V+
V–
–
+
0.5V
0.5V
(Note
(Note
5)
5)
Input Offset Current
VCM
VCM
=
=
V+
V–
–
+
0.5V
0.5V
Input Offset Current Shift
VCM = V– + 0.5V to V+ – 0.5V
l
l
l
l
l0
l –1200
l
l0
l –400
l
l
l
1.0
2.0
250
400
500
–500
1000
40
–40
40
40
80
1500
2200
1200
0
2400
400
0
300
300
600
μV/°C
μV/°C
μV
μV
nA
nA
nA
nA
nA
nA
nA
nA
AVOL Large-Signal Voltage Gain
VO = –14.5V to 14.5V, RL = 10k
l 40
400
V/mV
CMRR
Channel Separation
Common Mode Rejection Ratio
CMRR Match (Channel-to-Channel) (Note 5)
VO = –10V to 10V, RL = 2k
VCM = V– + 0.5V to V+ – 0.5V
VCM = V– + 0.5V to V+ – 0.5V
l 110
l 86
l 80
120
100
100
dB
dB
dB
PSRR Power Supply Rejection Ratio
VS = ±5V to ±15V
l 88
100
dB
PSRR Match (Channel-to-Channel) (Note 5)
VS = ±5V to ±15V
l 80
100
dB
VOL Output Voltage Swing (Low) (Note 6)
No Load
ISINK = 0.5mA
ISINK = 10mA
l
25 75
mV
l
50 100
mV
l
275 520
mV
VOH Output Voltage Swing (High) (Note 6)
No Load
ISOURCE = 0.5mA
ISOURCE = 10mA
l
3.5 20
mV
l
65 120
mV
l
500 1400
mV
ISC Short-Circuit Current
l ±7.5 ±12
mA
IS Supply Current per Amplifier
l
2.5 3.2
mA
GBW Gain-Bandwidth Product (Note 7)
l 5.8
8.5
MHz
SR Slew Rate
AV = –1, RL = Open, VO = ±10V
Measure at VO = ±5V
l 2.2
4.75
V/μs
14989fg
11
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet LT1499.PDF ] | |
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