RS8561, RS8562
RS8563, RS8564
Zero-Drift, Rail-to-Rail I/O CMOS Operational
Amplifiers
Features
•
•
•
•
•
•
•
•
•
•
•
•
Description
The RS8561, RS8562, RS8564, RS8563(dual
version &shutdown) series of CMOS operational
amplifiers
use
auto-zero
techniques
to
simultaneously provide very low offset voltage (20μV
max) and near-zero drift over time and temperature.
This family of amplifiers has ultralow noise, offset
and power.
Low Offset Voltage: 20uV (MAX)
Input Offset Drift: 0.1μV/°C(TYP)
High Gain Bandwidth Product: 11MHz
Rail-to-Rail Input and Output
High Gain, CMRR, PSRR:120dB(TYP)
High Slew Rate: 8.5V/μs
Low Noise: 0.48uVp-p (0.01~10Hz)
Low Power Consumption: 1.3mA /op amp
Overload Recovery Time:0.4us
Low Supply Voltage: +2.9 V to +5.5 V
No External Capacitors Required
Extended Temperature: -40°C to +125°C
This miniature, high-precision operational amplifiers
offset high input impedance and rail-to-rail input and
rail-to-rail output swing. With high gain-bandwidth
product of 11MHz and slew rate of 8.5V/μs.
Single or dual supplies as low as +2.9V (±1.45V)
and up to +5.5V (±2.75V) may be used.
Applications
•
•
•
•
•
•
•
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Temperature Sensors
Medical/Industrial Instrumentation
Pressure Sensors
Battery-Powered Instrumentation
Active Filtering
Weight Scale Sensor
Strain Gage Amplifiers
Power Converter/Inverter
REV B.5
The RS8561/RS8562/RS8564/RS8563 (dual version
with shutdown) are specified for the extended
industrial and automotive temperature range (-40°C
to 125°C). The RS8561 single amplifier is available
in 5-lead SOT23, 8-lead MSOP8 and 8-lead SOIC
packages, The RS8562 dual amplifier is available in
8-lead SOIC and 8-lead MSOP narrow surface
mount packages, The RS8563(dual version with
shutdown) comes in Micro-SIZE MSOP-10. The
RS8564 quad is available in 14-lead SOIC and 14lead narrow TSSOP packages.
1
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RS8561, RS8562
RS8563, RS8564
PIN CONFIGURATIONS
V-
2
+IN
3
5
+
-
4
NC
1
-IN
2
+IN
3
V-
4
8
NC
OUT A
1
7
V+
-IN A
2
+
1
-
OUT
RS8562
RS8561
RS8561
6
OUT
+IN A
3
5
NC
V-
4
V+
-IN
SOT23-5
+
A
B+
SOIC-8,MSOP-8
8
V+
7
OUTB
6
-IN B
5
+IN B
SOIC-8,MSOP-8
RS8564
OUT A
1
V+
-IN A
2
9
OUT B
+IN A
-
8
-IN B
7
+IN B
1
-IN A
2
-
+IN A
3
+
V-
4
En A
OUT A
10
+
RS8563
A
B
5
6
En B
MSOP-10
14
OUT D
13
-IN D
3
12
+IN D
V+
4
11
V-
+IN B
5
10
+IN C
9
-IN C
8
OUT C
-IN B
6
OUT B
7
A
- +
- +
B
D
+ -
+ C
SOIC-14,TSSOP-14
Note: NC indicates no internal connection
2
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RS8561, RS8562
RS8563, RS8564
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°C to +150°C
Operating Temperature ……….………… −40°C to +125°C
Junction Temperature................................................150°C
Package Thermal Resistance @ TA = +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 …......................................................................5000V
MM ……………………….........………………...……….400V
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.
(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.
PACKAGE/ORDERING INFORMATION
PRODUCT
RS8561
RS8562
RS8563
RS8564
ORDERING
PACKAGE
TRANSPORT
MARKING
MEDIA,QUANTITY
SOT23-5
8561
Reel,3000
-400C~1250C
SOIC-8
RS8561
Reel,2500
RS8561XM
-400C~1250C
MSOP-8
RS8561
Reel,3000
RS8562XK
-400C~1250C
SOIC-8
RS8562
Reel,2500
RS8562XM
-400C~1250C
MSOP-8
RS8562
Reel,3000
RS8563XN
-400C~1250C
MSOP-10
RS8563
Reel,3000
RS8564XP
-400C~1250C
SOIC-14
RS8564
Reel,2500
RS8564XQ
-400C~1250C
TSSOP-14
RS8564
Reel,3000
TEMPRANGE
PACKAGE
RS8561XF
-400C~1250C
RS8561XK
NUMBER
3
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RS8561, RS8562
RS8563, RS8564
ELECTRICAL CHARACTERISTICS
Boldface limits apply over the specified temperature range, TA = –40°C to +125°C.
(At TA = +250C, Vs=5V, RL = 10kΩ connected to VS/2, and VOUT = VS/2, unless otherwise noted.)
PARAMETER
CONDITION
RS8561, RS8562,
RS8563, RS8564
MIN
TYP
MAX
UNIT
OFFSET VOLTAGE
Input Offset Voltage
VS Temperature
VS Power Supply
Vos
VCM = Vs/2
dVos/dT
PSRR
VS = +2.9V to +5.5V, VCM = 0
100
Channel Separation, dc
±3
±20
μV
0.1
0.4
μV/0C
120
dB
0.1
μV/V
100
pA
10
pA
INPUT BIAS CURRENT
Input Bias Current
IB
Input Offset Current
Ios
VCM = Vs/2
NOISE PERFORMANCE
Input Voltage Noise
enp-p
f=0.01Hz to 10Hz
0.48
μVpp
Input Voltage Noise
enp-p
f=0.01Hz to 1Hz
0.15
μVpp
Input Voltage Noise Density
en
f=1KHz
32
nV/√Hz
Input Current Noise Density
in
f=10Hz
1.5
fA/√Hz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
VCM
(V-)-0.1
Common-Mode Rejection Ratio CMRR
(V–) – 0.1V < VCM < (V+)+ 0.1V
100
(V+)+0.1
V
120
dB
Differential
5
pF
Common-Mode
5
pF
120
dB
8.5
V/μs
INPUT CAPACITANCE
OPEN-LOOP GAIN
Open-Loop Voltage Gain
AOL
RL=10KΩ, VO=0.3V to 4.7V, -40°C~125°C
SR
G=+1
100
DYNAMIC PERFORMANCE
Slew Rate
Gain-Bandwidth Product
GBW
Overload Recovery Time
11
MHz
0.4
us
OUTPUT CHARACTERISTICS
Output Voltage High
Output Voltage Low
Short-Circuit Current
VOH
VOL
RL=100 KΩ to GND
4.99
4.998
V
RL=10 KΩ to GND
4.95
4.98
V
RL=100 KΩ to V+
1
10
mV
RL=10 KΩ to V+
10
30
mV
ISC
65
mA
POWER SUOOLY
Operating Voltage Range
Quiescent Current/ Amplifier
2.9
IQ
1.3
5.5
V
1.55
mA
SHUTDOWN
tOFF
2
tON
150
VL (shutdown)
VH (amplifier is active)
us
0
+0.8
V
0.75(V+)
V+
V
Input Bias Current of Enable Pin
50
IQSD
1
4
μs
pA
5
uA
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RS8561, RS8562
RS8563, RS8564
TYPICAL CHARACTERISTICS
At TA = +25C, Vs=5V, RL = 10kΩconnected to VS/2, VOUT = VS/2, unless otherwise noted.
OFFSET VOLTAGE PRODUCTION
DISTRIBUTION
OFFSET VOLTAGE DRIFT PRODUCTION
DISTRIBUTION
Population
Number Of Amplifiers
6
5
4
3
2
1
0
-20
-15
-10
-5
0
5
10
-0.3
15
-0.2
Offset Voltage (uV)
Open-Loop Gain(dB)
Phase
110
80
90
60
70
40
50
20
30
0
10
-20
0.3
1K
100
-10
100M
1M
10
-40 -20
0
20
40
60
80 100 120 140
Temperature(℃)
Frequency(Hz)
POWER−SUPPLY REJECTION RATIO vs
FREQUENCY
140
120
COMMON−MODE REJECTION RATIO vs
FREQUENCY
120
100
100
CMRR(dB)
PSRR(dB)
0.2
10K
Input Bias Current(pA)
Gain
100
140
0.1
INPUT BIAS CURRENT vs TEMPERATURE
130
Phase Margin (°)
120
10K
0
Input Offset Drift (uV/℃)
OPEN−LOOP GAIN AND PHASE vs FREQUENCY
100
-0.1
80
60
40
80
60
40
20
20
0
100
1K
10K
100K
1M
0
10M
100
Frequency(Hz)
5
1K
10K
100K
Frequency(Hz)
1M
10M
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RS8561, RS8562
RS8563, RS8564
TYPICAL CHARACTERISTICS
At TA = +25C, Vs=5V, RL = 10kΩconnected to VS/2, VOUT = VS/2, unless otherwise noted.
QUIESCENT CURRENT vs TEMPERATURE
QUIESCENT CURRENT vs TEMPERATURE
1.31
Quiescent Current(mA)
1.31
Quiescent Current(mA)
1.32
1.32
1.3
1.29
1.28
1.27
1.3
1.29
1.28
1.27
1.26
1.26
-40 -20 0
-40 -20 0 20 40 60 80 100 120 140
Temperature(℃) Vs=2.9V
20 40 60 80 100 120 140
Temperature(℃) Vs=5V
SINK CURRENT vs TEMPERATURE
90
85
85
80
80
Sink Current(mA)
90
75
70
65
60
75
70
65
60
55
55
50
50
-40 -20 0
-40 -20 0 20 40 60 80 100 120 140
Temperature(℃)
20 40 60 80 100 120 140
Temperature(℃)
SMALL−SIGNAL STEP RESPONSE
LARGE−SIGNAL STEP RESPONSE
CL=100PF
CL=100PF
1V/div
50mV/div
Source Current(mA)
SOURCE CURRENT vs TEMPERATURE
200ns/div
500ns/div
6
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RS8561, RS8562
RS8563, RS8564
TYPICAL CHARACTERISTICS
At TA = +25C, Vs=5V, RL = 10kΩconnected to VS/2, VOUT = VS/2, unless otherwise noted.
0V
0V
VS=±2.5V
G=-100
VS=±2.5V
G=-100
VOUT
100ns/DIV
100ns/DIV
0.01Hz TO 10Hz NOISE AT Vs=2.9V
200nV/div
400nV/div
0.01Hz TO 10Hz NOISE AT Vs=5V
10s/div
10s/div
0.01Hz TO 1Hz NOISE AT Vs=5V
200nV/div
0.01Hz TO 1Hz NOISE AT Vs=2.9V
100nV/div
0V
1V/div
VOUT
200mV/div
VIN
VIN
1V/div
0V
NEGATIVE OVERVOLTAGE RECOVERY
200mV/div
POSITIVE OVERVOLTAGE RECOVERY
10s/div
10s/div
7
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RS8561, RS8562
RS8563, RS8564
75% of the total supply voltage. The valid logic high
signal can be up to 5.5V above the negative supply,
independent of the positive supply voltage. A valid
logic low is defined as < 0.8V above the V– supply
pin. If dual or split power supplies are used, be sure
that logic input signals are properly referred to the
negative supply voltage. The Enable pin must be
connected to a valid high or low voltage, or driven,
not left open circuit.
The logic input is a high-impedance CMOS input,
with separate logic inputs provided on the dual
version. For battery operated applications, this
feature can be used to greatly reduce the average
current and extend battery life.
APPLICATION NOTES
The RS8561, RS8562, RS8563, RS8564 series op
amps are unity-gain stable and free from
unexpected output phase reversal. They use autozeroing techniques to provide low offset voltage and
very low drift over time and temperature.
Good layout practice mandates use of a 0.1µF
capacitor placed closely across the supply pins.
For lowest offset voltage and precision performance,
circuit layout and mechanical conditions should be
optimized. Avoid temperature gradients that create
thermoelectric (Seebeck) effects in thermocouple
junctions formed from connecting dissimilar
conductors. These thermally-generated potentials
can be made to cancel by assuring that they are
equal on both input terminals.
The enable time includes one full autozero cycle
required by the amplifier to return to VOS accuracy.
Prior to this time, the amplifier functions properly,
but with unspecified offset voltage.
• Use low thermoelectric-coefficient connections
(avoid dissimilar metals).
• Thermally isolate components
supplies or other heat-sources.
from
Disable time is 1µs. When disabled, the output
assumes a high-impedance state. This allows the
RS8563 to be operated as a gated amplifier, or to
have the output multiplexed onto a common analog
output bus.
power
• Shield op amp and input circuitry from air
currents, such as cooling fans.
Following these guidelines will reduce the likelihood
of junctions being at different temperatures, which
can cause thermoelectric voltages of 0.1µV/°C or
higher, depending on materials used.
LAYOUT GUIDELINES
Attention to good layout practices is always
recommended. Keep traces short. When possible,
use a PCB ground plane with surface-mount
components placed as close to the device pins as
possible. Place a 0.1µF capacitor closely across the
supply pins. These guidelines should be applied
throughout the analog circuit to improve
performance and provide benefits such as reducing
the EMI (electromagnetic-interference) susceptibility.
OPERATING VOLTAGE
The RS8561, RS8562, RS8563, RS8564 series op
amps operate over a power-supply range of +2.9V
to +5.5V (±1.45V to ±2.75V). Supply voltages higher
than 7V (absolute maximum) can permanently
damage the amplifier. Parameters that vary over
supply voltage or temperature are shown in the
Typical Characteristics section of this data sheet.
RS8563 ENABLE FUNCTION
The enable/shutdown digital input is referenced to
the V– supply voltage of the amp. A logic high
enables the op amp. A valid logic high is defined as >
Figure 1. The Layout of Guard Ring
8
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RS8561, RS8562
RS8563, RS8564
PACKAGE OUTLINE DIMENSIONS
SOT23-5
D
1.90
b
2.59
E1
E
0.99
0.69
0.95
e
e1
RECOMMENDED LAND PATTERN (Unit: mm)
0.2
A A2
L
A1
Symbol
c
θ
Dimensions In Millimeters
Dimensions In Inches
Min
Max
Min
Max
A
1.050
1.250
0.041
0.049
A1
0.000
0.100
0.000
0.004
A2
1.050
1.150
0.041
0.045
b
0.300
0.500
0.012
0.020
c
0.100
0.200
0.004
0.008
D
2.820
3.020
0.111
0.119
E
1.500
1.700
0.059
0.067
E1
2.650
2.950
0.104
0.116
e
0.950(BSC)
0.037(BSC)
e1
1.800
2.000
0.071
0.079
L
0.300
0.600
0.012
0.024
θ
0°
8°
0°
8°
9
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RS8561, RS8562
RS8563, RS8564
MSOP-8
b
e
E
E1
4.8
1.02
D
0.65
0.41
RECOMMENDED LAND PATTERN (Unit: mm)
A2
c
A
A1
L
Symbol
Dimensions In Millimeters
θ
Dimensions In Inches
Min
Max
Min
Max
A
0.820
1.100
0.032
0.043
A1
0.020
0.150
0.001
0.006
A2
0.750
0.950
0.030
0.037
b
0.250
0.380
0.010
0.015
c
0.090
0.230
0.004
0.009
D
2.900
3.100
0.114
0.122
e
0.650(BSC)
0.026(BSC)
E
2.900
3.100
0.114
0.122
E1
4.750
5.050
0.187
0.199
L
0.400
0.800
0.016
0.031
θ
0°
6°
0°
6°
10
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RS8561, RS8562
RS8563, RS8564
MSOP-10
b
e
E
4.65
E1
1.02
0.31
D
0.5
RECOMMENDED LAND PATTERN (Unit: mm)
A2
A1
Symbol
A
c
L
Dimensions In Millimeters
θ
Dimensions In Inches
Min
Max
Min
Max
A
0.820
1.100
0.032
0.043
A1
0.020
0.150
0.001
0.006
A2
0.750
0.950
0.030
0.037
b
0.180
0.280
0.007
0.011
c
0.090
0.230
0.004
0.009
D
2.900
3.100
0.114
0.122
e
0.50(BSC)
0.020(BSC)
E
2.900
3.100
0.114
0.122
E1
4.750
5.050
0.187
0.199
L
0.400
0.800
0.016
0.031
θ
0°
6°
0°
6°
11
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RS8561, RS8562
RS8563, RS8564
TSSOP-14
e
b
5.6
E1 E
1.78
D
0.65
0.42
RECOMMENDED LAND PATTERN (Unit: mm)
A2
A1
Symbol
H
C
A
θ
L
Dimensions In Millimeters
Min
Max
A
Dimensions In Inches
Min
Max
1.200
0.047
A1
0.050
0.150
0.002
0.006
A2
0.800
1.050
0.031
0.041
b
0.190
0.300
0.007
0.012
c
0.090
0.200
0.004
0.008
D
4.860
5.100
0.191
0.201
E
4.300
4.500
0.169
0.177
E1
6.250
6.550
0.246
0.258
e
L
0.650(BSC)
0.500
H
θ
0.026(BSC)
0.700
0.020
0.25(TYP)
1°
0.028
0.01(TYP)
7°
12
1°
7°
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RS8561, RS8562
RS8563, RS8564
SOIC-8
b
e
5.2
E
E1
2.2
D
1.27
0.6
RECOMMENDED LAND PATTERN (Unit: mm)
A2
c
A
A1
L
Symbol
Dimensions In Millimeters
θ
Dimensions In Inches
Min
Max
Min
Max
A
1.350
1.750
0.053
0.069
A1
0.100
0.250
0.004
0.010
A2
1.350
1.550
0.053
0.061
b
0.330
0.510
0.013
0.020
c
0.170
0.250
0.007
0.010
D
4.800
5.000
0.189
0.197
e
1.270(BSC)
0.050(BSC)
E
5.800
6.200
0.228
0.244
E1
3.800
4.000
0.150
0.157
L
0.400
1.270
0.016
0.050
θ
0°
8°
0°
8°
13
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RS8561, RS8562
RS8563, RS8564
SOIC-14
e
b
5.2
1.27
E E1
0.6
D
1.27
RECOMMENDED LAND PATTERN (Unit: mm)
A2
A1
c
A
θ
L
Symbol
Dimensions In Millimeters
Dimensions In Inches
Min
Max
Min
Max
A
1.350
1.750
0.053
0.069
A1
0.100
0.250
0.004
0.010
A2
1.350
1.550
0.053
0.061
b
0.310
0.510
0.012
0.020
c
0.100
0.250
0.004
0.010
D
8.450
8.850
0.333
0.348
e
1.270(BSC)
0.050(BSC)
E
5.800
6.200
0.228
0.244
E1
3.800
4.000
0.150
0.157
L
0.400
1.270
0.016
0.050
θ
0°
8°
0°
8°
14
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