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RS721
10MHz, Rail-to-Rail I/O
CMOS Operational Amplifier
FEATURES
•
•
•
•
•
•
HIGH GAIN BANDWIDTH:10MHz
RAIL-TO-RAIL INPUT AND OUTPUT
1mV Typical Vos
INPUT VOLTAGE RANGE: -0.1V to +5.6V
with Vs = 5.5V
SUPPLY RANGE: +2.5V to +5.5V
SPECIFIED UP TO +125°
C
Micro
SIZE
DESCRIPTION
The RS721 offer low voltage operation and rail-to-rail
input and output, as well as excellent speed/power
consumption ratio, providing an excellent bandwidth
(10MHz) and slew rate of 7V/us. The op-amps are
unity gain stable and feature an ultra-low input bias
current.
The devices are ideal for sensor interfaces, active
filters and portable applications. The RS721 is
specified at the full temperature range of −40° to
C
+125° under single supplies of 2.5V to 5.5V or dual
C
power supplies of ±1.25V to ±2.75V.
PACKAGES: SOT353(SC70-5)
APPLICATIONS
•
•
•
•
SENSORS
PHOTODIODE AMPLIFICATION
ACTIVE FILTERS
TEST EQUIPMENT
DRIVING A/D CONVERTERS
•
PIN CONFIGURATIONS
RS721
OUT
V-
+IN
1
2
5
V+
+
3
-
4
-IN
SOT353(SC70-5)
REV B.1
1
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RS721
ABSOLUTE MAXIMUM RATINGS
(1)
Supply Voltage, V+ to V-...............................................7.0V
Input Terminals, Voltage
(2)
…………... – 0.5 to (V+) + 0.5V
Current
(2)
…………………....…..... ±
10mA
Storage Temperature ……….…………… −65° to +150°
C
C
Operating Temperature ……….………… −40° to +125°
C
C
Junction Temperature................................................150°
C
Package Thermal Resistance @ T
A
= +25°
C
SOT23-5, SOT23-6………………….………………200°
C/W
MSOP-10, SOIC-8 …………………….…………... 150°
C/W
SOIC-14, TSSOP-14……….….….….…..…………100°
C/W
Lead Temperature (Soldering, 10s) ……………........260°
C
ESD Susceptibility
HBM …......................................................................3000V
MM ……………………….........………………...……….200V
(1)
Stresses above these ratings may cause permanent damage. Exposure to
absolute maximum conditions for extended periods may degrade device
reliability. These are stress ratings only, and functional operation of the
device at these or any other conditions beyond those specified is not
implied.
(2)
Input terminals are diode-clamped to the power-supply rails. Input
signals that can swing more than 0.5V beyond the supply rails should
be current-limited to 10mA or less.
ESD SENSITIVITY CAUTION
ESD damage can range from subtle performance
degradation to complete device failure. Precision
integrated circuits may be more susceptible to
damage because very small parametric changes
could cause the device not to meet its published
specifications.
PACKAGE/ORDERING INFORMATION
PRODUCT
RS721
ORDERING NUMBER
RS721XC5
TEMPERATURE
RANGE
-40℃~125℃
PACKAGE LEAD
SOT353(SC70-5)
PACKAGE
MARKING
RS721
PACKAGE OPTION
Tape and Reel,3000
2
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RS721
ELECTRICAL CHARACTERISTICS
(At T
A
= +25C, Vs=5V, R
L
= 10kΩ connected to V
S
/2, and V
OUT
= V
S
/2, unless otherwise noted.)
PARAMETER
POWER SUPPLY
Vs
I
Q
Operating Voltage Range
Quiescent Current/Amplifier
25°
C
25°
C
25°
C
Vs= 2.5V to 5.5V
Vcm =(V-)+0.5V –40°C to 125°C
Vcm=2.5V
25°
C
25°
C
25°
C
25°
C
25°
C
–40°C to 125°C
25°
C
–40°C to 125°C
25°
C
–40°C to 125°C
-0.1
77
70
63
60
96
75
100
77
52
7
150
7
10
62
0.2
V
IN
• Gain
≥
V
s
f = 1 kHz
f = 10 kHz
25°
C
25°
C
0.35
9.5
6.5
mV
mA
V/us
MHz
°
us
us
nV/√Hz
nV/√Hz
110
105
dB
80
90
dB
77
68
±
1
2.6
1
1
10
10
5.6
±
3
2.5
1.15
90
5.5
1.55
V
mA
dB
CONDITIONS
T
J
MIN
RS721
TYP
MAX
UNIT
PSRR Power-Supply Rejection Ratio
INPUT
Vos
Input Offset Voltage
mV
uV/°
C
pA
pA
V
Vos TC Input Offset Voltage Average Drift -40° to 125°
C
C
I
B
Input Bias Current
Ios
Input Offset Current
Vcm
Common-Mode Voltage Range
Vs=5.5V
Vs = 5.5V, Vcm
=-0.1V to 4V
Vs = 5.5V, Vcm
= -0.1V to 5.6V
R
L
=2KΩ, Vo =
0.15V to 4.85V
CMRR Common-Mode Rejection Ratio
OUTPUT
A
OL
Open-Loop Voltage Gain
25°
C
R
L
= 10kΩ, Vo =
0.05V to 4.95V
–40°C to 125°C
R
L
= 2KΩ
R
L
= 10kΩ
25°
C
25°
C
25°
C
25°
C
25°
C
25°
C
Output Swing From Rail
I
out
SR
GBP
Φ
m
t
s
NOISE
e
n
Input-Referred Voltage Noise
Output Short-Circuit Current
Slew Rate
Gain-Bandwidth Product
Phase Margin
Settling Time, 0.1%
Overload Recovery Time
FREQUENCY RESPONSE
3
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RS721
TYPICAL CHARACTERISTICS
At T
A
= +25C, Vs=5V, R
L
= 10kΩ connected to V
S
/2, V
OUT
= V
S
/2, unless otherwise noted.
OPEN−LOOP GAIN AND PHASE vs FREQUENCY
120
Gain
100
160
140
Phase
120
COMMON−MODE REJECTION RATIO vs
FREQUENCY
Open-Loop Gain(dB)
80
60
40
20
0
-20
10
1K
100K
10M
Phase Margin (°)
120
100
80
60
40
20
0
100
CMRR(dB)
80
60
40
20
1
10
100
1K
10K
Frequency(Hz)
INPUT VOLTAGE NOISE
SPECTRAL DENSITY vs FREQUENCY
100
120
100
Frequency(KHz)
V
s
=5V
POWER−SUPPLY REJECTION RATIO vs
FREQUENCY
Voltage Noise (nV/√Hz)
|
PSRR(dB)
10
100
1K
10K
100K
80
60
40
10
1
20
1
10
100
1K
10K
Frequency(Hz)
Frequency(KHz)
V
s
=5V
QUIESCENT CURRENT vs TEMPERATURE
1.3
QUIESCENT CURRENT vs TEMPERATURE
1.6
1.5
1.4
1.3
1.2
1.1
1
0.9
0.8
-40 -20
0
20 40 60 80 100 120 140
Temperature(℃) V
s
=2.7V
Quiescent Current(mA)
Quiescent Current(mA)
1.2
1.1
1
0.9
0.8
-40 -20
0
20 40 60 80 100 120 140
Temperature(℃) V
s
=5V
4
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RS721
TYPICAL CHARACTERISTICS
At T
A
= +25C, Vs=5V, R
L
= 10kΩ connected to V
S
/2, V
OUT
= V
S
/2, unless otherwise noted.
INPUT BIAS CURRENT vs TEMPERATURE
10K
SMALL−SIGNAL STEP RESPONSE
C
L
=100PF
Input Bias Current(pA)
1K
100
10
1
0.1
-40 -20
0
20
40
60
80 100 120 140
50mV/div
200ns/div
Temperature(℃)
POSITIVE OVERLOAD RECOVERY
LARGE−SIGNAL STEP RESPONSE
C
L
=100PF
0V
V
IN
200mV/div
1V/div
V
S
=±2.5V
G=-100
0V
400ns/div
500ns/DIV
NEGATIVE OVERLOAD RECOVERY
V
IN
0V
0V
1V/div
200mV/div
V
OUT
V
S
=±2.5V
G=-100
500ns/div
5
1V/div
V
OUT
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