RS8751, RS8752, RS8754
250MHz, Rail-to-Rail Output
CMOS Operational Amplifier
FEATURES
DESCRIPTION
•
•
HIGH GAIN BANDWIDTH:250MHz
RAIL-TO-RAIL OUTPUT
•
1.5mV Typical Vos
•
•
INPUT VOLTAGE RANGE: -0.2V to +3.9V
with Vs = 5V
SUPPLY RANGE: +2.5V to +5.5V
•
SPECIFIED UP TO +125°C
•
Micro SIZE
The RS875X families of voltage-feedback (VFB)
products offer low voltage operation, negative-rail
input, rail-to-rail output, as well as excellent
speed/power consumption ratio, providing an
excellent bandwidth (250MHz) and slew rate of
180V/us. The op-amps are unity gain stable and
feature an ultra-low input bias current.
PACKAGES: SOT23-5
These amplifiers set an industry-leading power-toperformance ratio for rail-to-rail amplifiers. The
RS875X families of operational amplifiers are
specified at the full temperature range of −40°C to
+125°C under single or dual power supplies of 2.5V
to 5.5V.
APPLICATIONS
•
AUDIO ADC INPUT BUFFERS
•
•
PHOTODIODE PREAMP
HIGH-DENSITY SYSTEMS
•
PORTABLE SYSTEMS
•
DRIVING A/D CONVERTERS
PIN CONFIGURATIONS
RS8751
OUT
1
V-
2
+IN
3
RS8752
5
+
-
4
V+
-IN
RS8751
2
- IN
3
8
V+
2
7
OUTB
+IN A
3
6
-IN B
-IN
2
+IN
3
V-
4
8
NC
7
V+
+
1
5
+IN B
6
OUT
5
NC
SOIC-8(SOP8),MSOP-8
5
V+
+
A
B+
4
SOIC-8(SOP8),MSOP-8,
TDFN-3x3-8L,TSSOP-8
RS8754
OUT A
1
A
D
14
OUT D
-IN A
2
13
-IN D
+IN A
3
12
+IN D
V+
4
11
V-
+IN B
5
10
+IN C
-IN B
6
9
-IN C
OUT B
7
8
OUT C
- +
+ -
+
V-
NC
-
RS8751B
1
1
-IN A
V-
SOT23-5
+ IN
OUT A
4
OUT
SOT23-5
Note: NC indicates no internal connection
- +
B
+ C
SOIC-14(SOP14),TSSOP-14
REV B.2
1
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RS8751, RS8752, RS8754
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 ,TSSOP-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
2
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RS8751, RS8752, RS8754
ELECTRICAL CHARACTERISTICS
(At TA = +25℃, VS = 5V, G = +2, RF = 1K Ω, and RL = 1KΩ connected to VS/2, VIN_CM =Vs/2, unless otherwise noted.)
PARAMETER
CONDITIONS
RS8751,RS8752,RS8754
MIN
TYP
MAX
UINTS
5.5
V
3.5
mA
POWER SUPPLY
Vs
Operating Voltage Range
IQ
Quiescent Current/Amplifier
PSRR
2.5
2.9
Power-Supply Rejection Ratio
Vs=2.5V to 5.5V,
Vcm=(V-)+0.5V
Input Offset Voltage
Vcm=Vs/2
Input Offset Voltage Drift
Vcm=Vs/2, -40°C ≤ TA ≤125°C
70
90
dB
INPUT
Vos
ΔVos/ΔT
±1.5
±7.5
mV
µV/°C
4
IB
Input Bias Current
1
10
pA
Ios
Input Offset Current
Common-Mode Voltage
Range
Common-Mode Rejection
Ratio
1
10
pA
3.9
V
Vcm
CMRR
Vs= 5V
-0.2
Vs= 5.5V, Vcm=-0.2V to 3.5V
66
85
dB
Vs=5.0V, RL=1KΩ, Vo=Vs-0.2V
95
110
dB
Vs=5.0V, RL=150Ω, Vo=Vs-0.3V
78
85
dB
23
mV
OUTPUT
AOL
Open-Loop Voltage Gain
Output Swing From Rail
RL=1KΩ
Iout
Output Current Source
85
mA
Iout
Output Current Sink
125
mA
VOUT=100mVpp,G=1
250
MHz
VOUT=100mVpp,G=2
130
MHz
VOUT=100mVpp,G=5
33
MHz
VOUT=100mVpp,G=10
15
MHz
FREQUENCY RESPONSE
Small-Signal Bandwidth
SR
GBP
PM
NOISE
enp-p
en
Slew Rate
Gain-Bandwidth Product
180
V/us
250
MHz
Phase Margin
62
°
Input Voltage Noise
f = 0.1 Hz to 10 Hz
13
μVpp
Input Voltage Noise Density
f = 1 MHz
8
nV/√Hz
3
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RS8751, RS8752, RS8754
TYPICAL CHARACTERISTICS
At TA = +25℃, VS = 5V, G = +2, RF = 1K Ω, and RL = 1KΩ connected to VS/2, VIN_CM =Vs/2, unless otherwise noted
Non-Inverting Small-Signal Frequency
Response
G=1,
RF=24Ω
1
0
RL=1KΩ
Normalized Gain (dB)
Normalized Gain (dB)
2
-3dB_GW_Gain=1
-1
G=2
-2
-3
-4
G=5
-8
-7
G=10
-10
100K
RL=150Ω
-5
-6
1M
10M
100M
-9
10M
1000M
Frequency(Hz)
Frequency Response for Various CL
-3dB_GW_Gain=2
8
0
Normalized Gain (dB)
Normalized Gain (dB)
1000M
Frequency(Hz) Vs=5V
1
RL=10KΩ
-1
-2
RL=50Ω
-3
RL=150Ω
-4
RL=1KΩ
6
CL=100P
4
2
CL=47P
0
-2
CL=6P
-4
-6
-8
-5
1M
10M
100M
1M
1000M
10M
100M
1000M
Frequency(Hz) Vs=5V G=2 RF=887
Frequency(Hz)
AC Response
Frequency Response for Various RL
2
0.4
0
Normalized Gain (dB)
Normalized Gain (dB)
100M
RL=10KΩ
-2
-4
RL=1KΩ
-6
RL=150Ω
-8
-10
RL=50Ω
-12
-14
10M
0.2
0
-0.2
-0.4
-0.6
100M
1000M
1M
10M
100M
Temperature(℃) Vs=5V
Frequency(Hz) Vs=5V G=2 RF=887
4
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RS8751, RS8752, RS8754
TYPICAL CHARACTERISTICS
At TA = +25℃, VS = 5V, G = +2, RF = 1K Ω, and RL = 1KΩ connected to VS/2, VIN_CM =Vs/2, unless otherwise noted
SOURCE CURRENT vs TEMPERATURE
SINK CURRENT vs TEMPERATURE
130
150
145
140
135
130
125
120
115
110
105
100
Sink Current(mA)
Source Current(mA)
120
110
100
90
80
70
60
50
-40 -20
0
20 40 60 80 100 120 140
-40 -20
Temperature(℃)
20 40 60 80 100 120 140
Temperature(℃)
INPUT BIAS CURRENT vs TEMPERATURE
SMALL−SIGNAL STEP RESPONSE
10K
50mV/div
1K
100
10
1
0.1
-40 -20
0
20
40
60
10ns/div
80 100 120 140
Temperature(℃)
POSITIVE OVERLOAD RECOVERY
200mV/div
LARGE−SIGNAL STEP RESPONSE
0V
VIN
1V/div
VS=±2.5V
G=-100
VOUT
0V
10ns/div
1V/div
Input Bias Current(pA)
0
50ns/div
5
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RS8751, RS8752, RS8754
TYPICAL CHARACTERISTICS
At TA = +25℃, VS = 5V, G = +2, RF = 1K Ω, and RL = 1KΩ connected to VS/2, VIN_CM =Vs/2, unless otherwise noted
NEGATIVE OVERLOAD RECOVERY
VIN
0V
1V/div
0V
Percentage of Amplifiers (%)
200mV/div
25
VS=±2.5V
G=-100
VOUT
20
OFFSET VOLTAGE PRODUCTION
DISTRIBUTION
14300 Samples
1 Production Lot
VS = ±2.5V
15
10
5
0
50ns/div
-4
-3
-2
-1
0
1
2
3
Offset Voltage (mV)
6
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RS8751, RS8752, RS8754
APPLICATION NOTES
The RS8751, RS8752, RS8754 are high precision,
rail-to-rail operational amplifiers that can be run from
a single-supply voltage 2.5V to 5.5V
(±1.25V to ±2.75V). Supply voltages higher than 7V
(absolute maximum) can permanently damage the
amplifier.
Rail-to-rail input and output swing significantly
increases dynamic range, especially in low-supply
applications.
Good layout practice mandates use of a 0.1uF
capacitor place closely across the supply pins.
INSTRUMENTATION AMPLIFIER
In the three-op amp, instrumentation amplifier
configuration shown in Figure2,
V1
RS875X
RS875X
VOUT
LAYOUT GUIDELINS
RS875X
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 0.1uF 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 susceptibility.
V2
Figure2. Amplifier instrumentation amplifier
+Vs
10uF
0.1uF
Vin
Vip
Vout
RS875X
10uF
0.1uF
-Vs
Figure1. Amplifier with Bypass Capacitors
7
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RS8751, RS8752, RS8754
PACKAGE OUTLINE DIMENSIONS
SOT23-5
D
1.90
b
2.59
E1
E
0.99
0.95
0.69
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°
8
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RS8751, RS8752, RS8754
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°
9
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RS8751, RS8752, RS8754
TSSOP-8
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
2.900
3.100
0.114
0.122
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°
10
1°
7°
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RS8751, RS8752, RS8754
TSSOP-14
e
b
5.6
E1 E
1.78
D
0.65
0.42
RECOMMENDED LAND PATTERN (Unit: mm)
A2
A
A1
Symbol
H
C
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°
11
1°
7°
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RS8751, RS8752, RS8754
SOIC-8(SOP8)
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°
12
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RS8751, RS8752, RS8754
SOIC-14(SOP14)
e
b
5.2
1.27
E E1
0.6
D
1.27
RECOMMENDED LAND PATTERN (Unit: mm)
A2
A1
A
c
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°
13
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RS8751, RS8752, RS8754
TDFN-3x3-8L
E
e
D
E1
L
b
D1
TOP VIEW
A1
A2
A
BOTTOM VIEW
SIDE VIEW
Symbol
Dimensions In Millimeters
Dimensions In Inches
Min
Max
Min
Max
A
0.700
0.800
0.028
0.031
A1
0.000
0.050
0.000
0.002
A2
0.203
0.008
b
0.300
0.400
0.012
0.016
D
2.900
3.100
0.114
0.122
D1
2.510
2.610
0.099
0.103
E
2.900
3.100
0.114
0.122
E1
1.550
1.650
0.061
0.065
e
L
0.650 TYP
0.350
0.026 TYP
0.450
14
0.014
0.018
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