XR8051, XR8052, XR8054
Low Cost, High Speed Rail-to-Rail Amplifiers
FE ATU R E S
■■ 260MHz bandwidth
■■ Fully specified at +3V, +5V and ±5V
supplies
■■ Output voltage range:
❏❏ 0.03V to 4.95V; V = +5; R = 2kΩ
S
L
■■ Input voltage range:
❏❏ -0.3V to +4.1V; V = +5
S
■■ 190V/μs slew rate
■■ 2.6mA supply current per amplifier
■■ ±100mA linear output current
■■ ±125mA short circuit current
■■ XR8051 directly replaces AD8051, AD8091
■■ XR8052 directly replaces AD8052, AD8092
■■ XR8054 directly replaces AD8054
General Description
The XR8051 (single), XR8052 (dual) and XR8054 (quad) are low cost,
voltage feedback amplifiers. These amplifiers are designed to operate on
+3V to +5V, or ±5V supplies. The input voltage range extends 300mV below
the negative rail and 0.9V below the positive rail.
The XR8051, XR8052, and XR8054 offer superior dynamic performance
with a 260MHz small signal bandwidth and 190V/μs slew rate. The
combination of low power, high output current drive, and rail-to-rail
performance make these amplifiers well suited for battery-powered systems
and video applications.
The combination of low cost and high performance make the XR8051,
XR8052, and XR8054 suitable for high volume applications in both
consumer and industrial applications such as video surveillance and
distribution systems, professional and IPC cameras, active filter circuits,
coaxial cable drivers, and electronic white boards.
A P P LICATION S
■■ Video driver
■■ Video surveillance and distribution
■■ A/D driver
■■ Active filters
■■ CCD imaging systems
■■ CD/DVD ROM
■■ Coaxial cable drivers
■■ High capacitive load driver
■■ Portable/battery-powered applications
■■ Twisted pair driver
■■ Telecom and optical terminals
Ordering Information - page 26
Output Voltage Swing vs Competition
Large Signal Frequency Response
5
XR8052
4
Output Amplitude (V)
Normalized Gain (dB)
3
0
Vout = 2Vpp
-3
Vout = 3Vpp
Vout = 4Vpp
-6
Competition
3
2
1
0
-1
-2
-3
VS = ±5V, RL = 50Ω
-4
Vs = +/- 5V
-5
-9
0.1
1
10
100
1000
Frequency (MHz)
© 2007-2014 Exar Corporation
-5
-4
-3
-2
-1
0
1
2
3
4
5
Input Amplitude (V)
1 / 27 exar.com/XR8051
Rev 1B
XR8051, XR8052, XR8054
Absolute Maximum Ratings
Operating Conditions
Stresses beyond the limits listed below may cause
permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect
device reliability and lifetime.
Supply Voltage Range..................................................2.7 to 12.6V
Operating Temperature Range................................-40°C to 125°C
Junction Temperature............................................................ 150°C
Storage Temperature Range....................................-65°C to 170°C
Lead Temperature (Soldering, 10s).......................................260°C
VS.................................................................................. 0V to +14V
VIN............................................................. -VS - 0.5V to +VS +0.5V
Package Thermal Resistance
θJA (TSOT-5)......................................................................215°C/W
θJA (SOIC-8)......................................................................150°C/W
θJA (MSOP-8)................................................................... 200°C/W
θJA (SOIC-14)..................................................................... 90°C/W
θJA (TSSOP-14).................................................................100°C/W
Package thermal resistance (θJA), JEDEC standard, multi-layer
test boards, still air.
ESD Protection
XR8051, XR8052, XR8054 (HBM)............................................1kV
ESD Rating for HBM (Human Body Model).
© 2007-2014 Exar Corporation
2 / 27 exar.com/XR8051
Rev 1B
XR8051, XR8052, XR8054
Electrical Characteristics at +3V
TA = 25°C, VS = +3V, Rf = 1.5kΩ, RL = 2kΩ to VS/2; G = 2; unless otherwise noted.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Frequency Domain Response
GBWP
-3dB Gain Bandwidth Product
G = +11, VOUT = 0.2Vpp
90
MHz
UGBW
Unity Gain Bandwidth
VOUT = 0.2Vpp, RF = 0
245
MHz
BWSS
-3dB Bandwidth
VOUT = 0.2Vpp
85
MHz
f0.1dB
0.1dB Gain Flatness
VOUT = 0.2Vpp, RL = 150Ω
16
MHz
BWLS
Large Signal Bandwidth
VOUT = 2Vpp
40
MHz
DC-coupled Output
0.03
%
AC-coupled Output
0.04
%
DC-coupled Output
0.03
°
AC-coupled Output
0.06
°
DG
DP
Differential Gain
Differential Phase
Time Domain
tR, tF
Rise and Fall Time
VOUT = 0.2V step; (10% to 90%)
5
ns
tS
Settling Time to 0.1%
VOUT = 1V step
25
ns
OS
Overshoot
VOUT = 0.2V step
8
%
SR
Slew Rate
G = -1, 2V step
165
V/μs
Distortion/Noise Response
THD
Total Harmonic Distortion
1MHz, VOUT = 1Vpp
75
dBc
en
Input Voltage Noise
>50kHz
16
nV/√Hz
XTALK
Crosstalk
f = 5MHz
58
dB
DC Performance
VIO
Input Offset Voltage
dVIO
Average Drift
IB
Input Bias Current
dIB
Average Drift
IOS
Input Offset Current
PSRR
Power Supply Rejection Ratio
AOL
Open Loop Gain
IS
Supply Current
0.5
mV
5
μV/°C
1.4
μA
2
nA/°C
0.05
μA
DC
102
dB
RL = 2kΩ
92
dB
per channel
2.6
mA
Input Characteristics
CIN
Input Capacitance
CMIR
Common Mode Input Range
CMRR
Common Mode Rejection Ratio
0.5
pF
-0.3 to
2.1
V
100
dB
RL = 150Ω
0.3 to
2.75
V
RL = 2kΩ
0.02 to
2.96
V
DC, VCM = 0 to 1.5V
Output Characteristics
VOUT
Output Swing
IOUT
Output Current
ISC
Short Circuit Current
VS
Power Supply Operating Range
VOUT = VS / 2
© 2007-2014 Exar Corporation
±100
mA
±125
V
2.7 to
12.6
V
3 / 27 exar.com/XR8051
Rev 1B
XR8051, XR8052, XR8054
Electrical Characteristics at +5V
TA = 25°C, VS = +5V, Rf = 1.5kΩ, RL = 2kΩ to VS/2; G = 2; unless otherwise noted.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Frequency Domain Response
GBWP
-3dB Gain Bandwidth Product
G = +11, VOUT = 0.2Vpp
95
MHz
UGBW
Unity Gain Bandwidth
VOUT = 0.2Vpp, RF = 0
250
MHz
BWSS
-3dB Bandwidth
VOUT = 0.2Vpp
85
MHz
f0.1dB
0.1dB Gain Flatness
VOUT = 0.2Vpp, RL = 150Ω
35
MHz
BWLS
Large Signal Bandwidth
VOUT = 2Vpp
45
MHz
DC-coupled Output
0.03
%
AC-coupled Output
0.04
%
DC-coupled Output
0.03
°
AC-coupled Output
0.06
°
DG
DP
Differential Gain
Differential Phase
Time Domain
tR, tF
Rise and Fall Time
VOUT = 0.2V step
5
ns
tS
Settling Time to 0.1%
VOUT = 2V step
25
ns
OS
Overshoot
VOUT = 0.2V step
5
%
SR
Slew Rate
G = -1, 4V step
185
V/μs
Distortion/Noise Response
THD
Total Harmonic Distortion
1MHz, VOUT = 2Vpp
-75
dBc
en
Input Voltage Noise
>50kHz
16
nV/√Hz
XTALK
Crosstalk
f = 5MHz
58
dB
DC Performance
VIO
Input Offset Voltage
dVIO
Average Drift
-7
IB
Input Bias Current
dIB
Average Drift
IOS
Input Offset Current
PSRR
Power Supply Rejection Ratio
AOL
Open Loop Gain
IS
Supply Current
per channel
0.5
7
5
-2
1.4
2
2
-0.75
0.05
DC
80
102
RL = 2kΩ
80
92
2.6
mV
μV/°C
μA
nA/°C
0.75
μA
dB
dB
4
mA
Input Characteristics
CIN
Input Capacitance
CMIR
Common Mode Input Range
CMRR
Common Mode Rejection Ratio
DC, VCM = 0 to 3.5V
0.5
pF
-0.3 to
4.1
V
75
100
dB
0.35
0.1 to
4.9
Output Characteristics
RL = 150Ω
VOUT
Output Swing
RL = 2kΩ
IOUT
Output Current
ISC
Short Circuit Current
VS
Power Supply Operating Range
VOUT = VS / 2
© 2007-2014 Exar Corporation
4.65
V
0.03 to
4.95
V
±100
mA
±125
V
2.7 to
12.6
V
4 / 27 exar.com/XR8051
Rev 1B
XR8051, XR8052, XR8054
Electrical Characteristics at ±5V
TA = 25°C, VS = ±5V, Rf = 1.5kΩ, RL = 2kΩ to GND; G = 2; unless otherwise noted.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Frequency Domain Response
GBWP
-3dB Gain Bandwidth Product
G = +11, VOUT = 0.2Vpp
90
MHz
UGBW
Unity Gain Bandwidth
VOUT = 0.2Vpp, RF = 0
260
MHz
BWSS
-3dB Bandwidth
VOUT = 0.2Vpp
85
MHz
f0.1dB
0.1dB Gain Flatness
VOUT = 0.2Vpp, RL = 150Ω
22
MHz
BWLS
Large Signal Bandwidth
VOUT = 2Vpp
50
MHz
DC-coupled Output
0.03
%
AC-coupled Output
0.04
%
DC-coupled Output
0.03
°
AC-coupled Output
0.06
°
DG
DP
Differential Gain
Differential Phase
Time Domain
tR, tF
Rise and Fall Time
VOUT = 0.2V step
5
ns
tS
Settling Time to 0.1%
VOUT = 2V step, RL = 100Ω
25
ns
OS
Overshoot
VOUT = 0.2V step
5
%
SR
Slew Rate
G = -1, 5V step
190
V/μs
Distortion/Noise Response
THD
Total Harmonic Distortion
1MHz, VOUT = 2Vpp
76
dBc
en
Input Voltage Noise
>50kHz
16
nV/√Hz
XTALK
Crosstalk
f = 5MHz
58
dB
DC Performance
VIO
Input Offset Voltage
dVIO
Average Drift
IB
Input Bias Current
dIB
Average Drift
IOS
Input Offset Current
PSRR
Power Supply Rejection Ratio
AOL
Open Loop Gain
IS
Supply Current
0.5
mV
5
μV/°C
1.3
μA
2
nA/°C
0.04
μA
DC
102
dB
RL = 2kΩ
92
dB
per channel
2.6
mA
Input Characteristics
CIN
Input Capacitance
CMIR
Common Mode Input Range
CMRR
Common Mode Rejection Ratio
0.5
pF
-5.3 to
4.1
V
100
dB
RL = 150Ω
-4.8 to
4.8
V
RL = 2kΩ
-4.95 to
4.93
V
DC, VCM = -5 to 3.5V
Output Characteristics
VOUT
Output Swing
IOUT
Output Current
ISC
Short Circuit Current
VS
Power Supply Operating Range
VOUT = VS / 2
© 2007-2014 Exar Corporation
±100
mA
±125
V
2.7 to
12.6
V
5 / 27 exar.com/XR8051
Rev 1B
XR8051, XR8052, XR8054
XR8051 Pin Configurations
XR8051 Pin Assignments
TSOT-5
TSOT-5
OUT
1
-Vs
2
+IN
3
5
+
+Vs
4
-IN
SOIC-8
Pin Name
Description
1
OUT
Output
2
-VS
Negative supply
3
+IN
Positive input
4
-IN
Negative input
5
+VS
Positive supply
SOIC-8
NC
1
-IN
2
+IN
3
-Vs
Pin No.
+
4
8
NC
7
+Vs
6
OUT
5
NC
Pin No.
Pin Name
Description
1
NC
No Connect
2
-IN
Negative input
3
+IN
Positive input
4
-VS
Negative supply
5
NC
No Connect
6
OUT
Output
7
+VS
Positive supply
8
NC
No Connect
XR8052 Pin Configuration
XR8052 Pin Assignments
SOIC-8 / MSOP-8
SOIC-8 / MSOP-8
OUT1
1
-IN1
2
+IN1
3
-Vs
4
+
+
Pin Name
1
OUT1
Description
Output, channel 1
+Vs
2
-IN1
Negative input, channel 1
7
OUT2
3
+IN1
Positive input, channel 1
4
-IN2
-VS
6
5
+IN2
Positive input, channel 2
+IN2
6
-IN2
Negative input, channel 2
7
OUT2
8
+VS
8
-
Pin No.
5
© 2007-2014 Exar Corporation
Negative supply
Output, channel 2
Positive supply
6 / 27 exar.com/XR8051
Rev 1B
XR8051, XR8052, XR8054
XR8054 Pin Configuration
XR8054 Pin Assignments
SOIC-14 / TSSOP-14
SOIC-14 / TSSOP-14
OUT1
1
14
OUT4
-IN1
2
13
-IN4
+IN1
3
12
+IN4
+VS
4
11
-VS
+IN2
5
10
+IN3
-IN2
6
9
-IN3
OUT2
7
8
OUT3
© 2007-2014 Exar Corporation
Pin No.
Pin Name
Description
1
OUT1
2
-IN1
Negative input, channel 1
3
+IN1
Positive input, channel 1
4
+VS
Positive supply
5
+IN2
Positive input, channel 2
6
-IN2
Negative input, channel 2
7
OUT2
Output, channel 2
8
OUT3
Output, channel 3
Output, channel 1
9
-IN3
Negative input, channel 3
10
+IN3
Positive input, channel 3
11
-VS
12
+IN4
Positive input, channel 4
13
-IN4
Negative input, channel 4
14
OUT4
Negative supply
Output, channel 4
7 / 27 exar.com/XR8051
Rev 1B
XR8051, XR8052, XR8054
Typical Performance Characteristics
TA = 25°C, VS = +3V, RL = 2kΩ to VS/2, G = +2, RF = 1.5kΩ; unless otherwise noted.
Non-Inverting Freq. Resp.
Inverting Freq. Resp.
3
3
G = -1
Normalized Gain (dB)
Normalized Gain (dB)
G = +1, RF = 0Ω
0
G = +2
-3
G = +5
G = +10
-6
0
G = -2
-3
G = -5
G = -10
-6
Vs = +3V, VOUT = 0.2Vpp
Vs = +3V, VOUT = 0.2Vpp
-9
-9
0.1
1
10
100
1000
0.1
1
10
Frequency (MHz)
Freq. Resp. vs CL
Vs = +3V, VOUT = 0.2Vpp
CL = 47pF
RS = 20Ω
CL = 100pF
RS = 18Ω
3
CL = 22pF
No RS
0
CL = 492pF
RS = 7.5Ω
-3
1000
Freq. Resp. vs RL
CL = 1000pF
RS = 4.3Ω
Normalized Gain (dB)
Normalized Gain (dB)
3
100
Frequency (MHz)
RL = 150Ω
0
RL = 500Ω
-3
-6
-6
-9
-9
RL = 5KΩ
RL = 1KΩ
Vs = +3V, VOUT = 0.2Vpp
0.1
1
10
100
0.1
1000
1
10
100
1000
Frequency (MHz)
Frequency (MHz)
Large Signal Freq. Resp.
-3dB BW vs Output Voltage
120
3
110
RL = 2KΩ
-3dB Bandwidth (MHz)
Normalized Gain (dB)
100
0
Vout = 1Vpp
-3
Vout = 2Vpp
-6
90
80
RL = 150Ω
70
60
50
40
30
Vs = +3V
-9
0.1
1
10
100
1000
Frequency (MHz)
© 2007-2014 Exar Corporation
Vs = +3V
20
0
0.5
1
1.5
2
Output Voltage (Vpp)
8 / 27 exar.com/XR8051
Rev 1B
XR8051, XR8052, XR8054
Typical Performance Characteristics
TA = 25°C, VS = +3V, RL = 2kΩ to VS/2, G = +2, RF = 1.5kΩ; unless otherwise noted.
2nd Harmonic Distortion vs RL over Freq.
55
-20
50
-30
45
-40
Distortion (dBc)
Input Voltage Noise (nV/√Hz)
Input Voltage Noise vs Freq.
40
35
30
Hd2_RL = 2KΩ
-50
-60
Hd2_RL = 150Ω
-70
25
-80
20
-90
15
-100
Vs = +3V_VOUT = 1Vpp
0.1
1
10
100
1000
0
5
10
Frequency (KHz)
15
20
Frequency (MHz)
3rd Harmonic Distortion vs RL over Freq.
2nd Harmonic Distortion vs VO over Freq.
-20
-40
-30
-50
Hd3_RL = 150Ω
-50
-60
Distortion (dBc)
Distortion (dBc)
-40
Hd3_RL = 2KΩ
-70
-60
5MHz
2MHz
-70
1MHz
-80
-80
-90
-90
Vs = +3V_VOUT = 1Vpp
Vs = +3V_RL = 150Ω
-100
-100
0
5
10
15
20
0.5
1
Frequency (MHz)
1.5
2
Output Amplitude (Vpp)
3rd Harmonic Distortion vs VO over Freq.
Non-Inverting Small Signal Pulse Response
1.7
-40
-50
-70
Voltage (V)
Distortion (dBc)
1.6
5MHz
-60
2MHz
1.5
-80
1.4
-90
1MHz
Vs = +3V_RL = 150Ω
Vs = +3V
-100
1.3
0.5
1
1.5
Output Amplitude (Vpp)
© 2007-2014 Exar Corporation
2
0
50
100
150
200
Time (ns)
9 / 27 exar.com/XR8051
Rev 1B
XR8051, XR8052, XR8054
Typical Performance Characteristics
TA = 25°C, VS = +3V, RL = 2kΩ to VS/2, G = +2, RF = 1.5kΩ; unless otherwise noted.
Crosstalk vs Frequency (XR8052)
3
-40
2.5
-50
2
-60
Crosstalk (dB)
Voltage (V)
Non-Inverting Large Signal Pulse Response
1.5
1
-70
-80
-90
0.5
Vs = +3V, RL = 150Ω, VOUT = 2Vpp
Vs = +3V
0
0
50
100
150
Time (ns)
Differential Gain & Phase_DC Coupled
200
-100
0.01
0.1
1
10
Frequency (MHz)
Differential Gain & Phase_AC Coupled
© 2007-2014 Exar Corporation
10 / 27 exar.com/XR8051
Rev 1B
XR8051, XR8052, XR8054
Typical Performance Characteristics
TA = 25°C, VS = +5V, RL = 2kΩ to VS/2, G = +2, RF = 1.5kΩ; unless otherwise noted.
Non-Inverting Freq. Resp.
Inverting Freq. Resp.
3
3
G = -1
Normalized Gain (dB)
Normalized Gain (dB)
G = +1, RF = 0Ω
0
G = +2
-3
G = +5
G = +10
-6
0
G = -2
-3
G = -5
G = -10
-6
Vs = +5V, VOUT = 0.2Vpp
Vs = +5V, VOUT = 0.2Vpp
-9
-9
0.1
1
10
100
1000
0.1
1
10
Frequency (MHz)
Freq. Resp. vs CL
Vs = +5V, VOUT = 0.2Vpp
CL = 47pF
RS = 20Ω
CL = 100pF
RS = 18Ω
3
CL = 22pF
No RS
0
CL = 492pF
RS = 7.5Ω
-3
1000
Freq. Resp. vs RL
CL = 1000pF
RS = 4.3Ω
Normalized Gain (dB)
Normalized Gain (dB)
3
100
Frequency (MHz)
RL = 150Ω
0
RL = 500Ω
-3
-6
-6
-9
-9
RL = 5KΩ
RL = 1KΩ
Vs = +5V, VOUT = 0.2Vpp
0.1
1
10
100
1000
0.1
1
10
Frequency (MHz)
100
1000
Frequency (MHz)
Large Signal Freq. Resp.
-3dB BW vs Output Voltage
110
3
RL = 2KΩ
100
-3dB Bandwidth (MHz)
Normalized Gain (dB)
90
0
Vout = 1Vpp
-3
Vout = 2Vpp
Vout = 3Vpp
-6
80
RL = 150Ω
70
60
50
40
30
Vs = 5V
Vs = +5V
20
-9
0.1
1
10
100
1000
Frequency (MHz)
© 2007-2014 Exar Corporation
0
0.5
1
1.5
2
2.5
3
Output Voltage (Vpp)
11 / 27 exar.com/XR8051
Rev 1B
XR8051, XR8052, XR8054
Typical Performance Characteristics
TA = 25°C, VS = +5V, RL = 2kΩ to VS/2, G = +2, RF = 1.5kΩ; unless otherwise noted.
2nd Harmonic Distortion vs RL over Freq.
55
-20
50
-30
45
-40
Distortion (dBc)
Input Voltage Noise (nV/√Hz)
Input Voltage Noise vs Freq.
40
35
30
Hd2_RL = 2KΩ
-50
-60
Hd2_RL = 150Ω
-70
25
-80
20
-90
15
-100
Vs = +5V_VOUT = 2Vpp
0.1
1
10
100
1000
0
5
10
Frequency (KHz)
3rd Harmonic Distortion vs RL over Freq.
20
2nd Harmonic Distortion vs VO over Freq.
-20
-40
-30
-50
-40
Hd3_RL = 150Ω
Distortion (dBc)
Distortion (dBc)
15
Frequency (MHz)
-50
-60
-70
Hd3_RL = 2kΩ
-60
2MHz
5MHz
-70
-80
1MHz
-80
-90
-90
Vs = +5V_V
+/-5V_V
==2V2V
OUT
OUT
pppp
Vs = +5V_RL = 150Ω
-100
-100
0
5
10
15
20
0.5
1
Frequency (MHz)
1.5
2
Output Amplitude (Vpp)
3rd Harmonic Distortion vs VO over Freq.
Non-Inverting Small Signal Pulse Response
2.7
-40
-50
-70
Voltage (V)
Distortion (dBc)
2.6
5MHz
-60
2MHz
2.5
-80
2.4
-90
1MHz
Vs = +5V_RL = 150Ω
Vs = +5V
2.3
-100
0.5
1
1.5
Output Amplitude (Vpp)
© 2007-2014 Exar Corporation
2
0
50
100
150
200
Time (ns)
12 / 27 exar.com/XR8051
Rev 1B
XR8051, XR8052, XR8054
Typical Performance Characteristics
TA = 25°C, VS = +5V, RL = 2kΩ to VS/2, G = +2, RF = 1.5kΩ; unless otherwise noted.
Non-Inverting Large Signal Pulse Response
Crosstalk vs Frequency (XR8052)
-40
5
-50
Crosstalk (dB)
Voltage (V)
4
3
2
1
-60
-70
-80
-90
Vs = +5V, RL = 150Ω, VOUT = 2Vpp
Vs = +5V
0
0
50
100
150
Time (ns)
Differential Gain & Phase_DC Coupled
200
-100
0.01
0.1
1
10
Frequency (MHz)
Differential Gain & Phase_AC Coupled
© 2007-2014 Exar Corporation
13 / 27 exar.com/XR8051
Rev 1B
XR8051, XR8052, XR8054
Typical Performance Characteristics
TA = 25°C, VS = ±5V, RL = 2kΩ to GND, G = +2, RF = 1.5kΩ; unless otherwise noted.
Non-Inverting Freq. Resp.
Inverting Freq. Resp.
3
3
G = -1
Normalized Gain (dB)
Normalized Gain (dB)
G = +1, RF = 0Ω
0
G = +2
-3
G = +5
G = +10
0
G = -2
-3
G = -5
G = -10
-6
-6
Vs = +/- 5V, VOUT = 0.2Vpp
Vs = +/- 5V, VOUT = 0.2Vpp
-9
-9
0.1
1
10
100
0.1
1000
1
10
Freq. Resp. vs CL
Vs = +/- 5V, VOUT = 0.2Vpp
CL = 47pF
RS = 15Ω
CL = 100pF
RS = 15Ω
3
CL = 22pF
No RS
0
CL = 492pF
RS = 6.5Ω
-3
1000
Freq. Resp. vs RL
CL = 1000pF
RS = 4.3Ω
Normalized Gain (dB)
Normalized Gain (dB)
3
100
Frequency (MHz)
Frequency (MHz)
RL = 150Ω
0
RL = 500Ω
-3
-6
-6
-9
-9
RL = 5KΩ
RL = 1KΩ
Vs = +/-5V, VOUT = 0.2Vpp
0.1
1
10
100
1000
0.1
1
10
Frequency (MHz)
100
1000
Frequency (MHz)
Large Signal Freq. Resp.
-3dB BW vs Output Voltage
110
3
100
RL = 2KΩ
-3dB Bandwidth (MHz)
Normalized Gain (dB)
90
0
Vout = 2Vpp
-3
Vout = 3Vpp
Vout = 4Vpp
-6
80
RL = 150Ω
70
60
50
40
30
Vs = +/- 5V
-9
Vs = +/-5V
20
0.1
1
10
100
1000
Frequency (MHz)
© 2007-2014 Exar Corporation
0
0.5
1
1.5
2
2.5
3
3.5
4
Output Voltage (Vpp)
14 / 27 exar.com/XR8051
Rev 1B
XR8051, XR8052, XR8054
Typical Performance Characteristics
TA = 25°C, VS = ±5V, RL = 2kΩ to GND, G = +2, RF = 1.5kΩ; unless otherwise noted.
2nd Harmonic Distortion vs RL over Freq.
55
-20
50
-30
45
-40
Distortion (dBc)
Input Voltage Noise (nV/√Hz)
Input Voltage Noise vs Freq.
40
35
30
Hd2_RL = 2KΩ
-50
-60
Hd2_RL = 150Ω
-70
25
-80
20
-90
15
-100
Vs = +/-5V_VOUT = 2Vpp
0.1
1
10
100
1000
0
5
10
Frequency (KHz)
3rd Harmonic Distortion vs RL over Freq.
20
2nd Harmonic Distortion vs VO over Freq.
-20
-40
-30
-50
-40
Hd3_RL = 150Ω
Distortion (dBc)
Distortion (dBc)
15
Frequency (MHz)
-50
-60
-70
Hd3_RL = 2kΩ
-60
5MHz
2MHz
-70
-80
-80
1MHz
-90
-90
Vs = +/-5V_VOUT = 2Vpp
Vs = +/-5V_RL = 150Ω
-100
-100
0
5
10
15
20
0.5
1
Frequency (MHz)
1.5
2
Output Amplitude (Vpp)
3rd Harmonic Distortion vs VO over Freq.
Non-Inverting Small Signal Pulse Response
-40
0.25
0.2
0.15
0.1
-60
5MHz
-70
Voltage (V)
Distortion (dBc)
-50
2MHz
-80
0.05
0
-0.05
-0.1
-0.15
-90
1MHz
-0.2
Vs = +/-5V_RL = 150Ω
-100
Vs = +/-5V
-0.25
0.5
1
1.5
Output Amplitude (Vpp)
© 2007-2014 Exar Corporation
2
0
50
100
150
200
Time (ns)
15 / 27 exar.com/XR8051
Rev 1B
XR8051, XR8052, XR8054
Typical Performance Characteristics
TA = 25°C, VS = ±5V, RL = 2kΩ to GND, G = +2, RF = 1.5kΩ; unless otherwise noted.
Crosstalk vs Frequency (XR8052)
3
-40
2
-50
1
-60
Crosstalk (dB)
Voltage (V)
Non-Inverting Large Signal Pulse Response
0
-1
-70
-80
-90
-2
Vs = +/- 5V, RL = 150Ω, VOUT = 2Vpp
Vs = +/-5V
-3
0
50
100
150
Time (ns)
Differential Gain & Phase_DC Coupled
200
-100
0.01
0.1
1
10
Frequency (MHz)
Differential Gain & Phase_AC Coupled
© 2007-2014 Exar Corporation
16 / 27 exar.com/XR8051
Rev 1B
XR8051, XR8052, XR8054
Application Information
+Vs
General Description
The XR8051, XR8052, and XR8054 are single supply,
general purpose, voltage-feedback amplifiers fabricated on
a complementary bipolar process using a patent pending
topography. They feature a rail-to-rail output stage and is
unity gain stable.
Input
0.1μF
+
Output
RL
0.1μF
The common mode input range extends to 300mV below
ground and to 0.9V below Vs. Exceeding these values will
not cause phase reversal. However, if the input voltage
exceeds the rails by more than 0.5V, the input ESD devices
will begin to conduct. The output will stay at the rail during
this overdrive condition.
6.8μF
Figure 3: Unity Gain Circuit
+Vs
Figures 1, 2, and 3 illustrate typical circuit configurations for
non-inverting, inverting, and unity gain topologies for dual
supply applications. They show the recommended bypass
capacitor values and overall closed loop gain equations. Figure
4 shows the typical non-inverting gain circuit for single supply
applications.
Input
6.8μF
+
In
0.1μF
+
Out
-
6.8μF
Rf
Rg
Figure 4: Single Supply Non-Inverting Gain Circuit
0.1μF
+
G=1
-Vs
The design is short circuit protected and offers “soft”
saturation protection that improves recovery time.
+Vs
6.8μF
Output
-
Overdrive Recovery
RL
0.1μF
Rg
6.8μF
-Vs
Rf
G = 1 + (Rf/Rg)
Figure 1: Typical Non-Inverting Gain Circuit
+Vs
For an amplifier, an overdrive condition occurs when the
output and/or input ranges are exceeded. The recovery time
varies based on whether the input or output is overdriven
and by how much the ranges are exceeded. The XR8051,
XR8052, and XR8054 will typically recover in less than 20ns
from an overdrive condition. Figure 5 shows the XR8052 in
an overdriven condition.
6.8μF
6
Input
Rg
OUTPUT
4
0.1μF
+
Output
RL
0.1μF
6.8μF
-Vs
Rf
G = - (Rf/Rg)
For optimum input offset
voltage set R1 = Rf || Rg
Figure 2: Typical Inverting Gain Circuit
2
Voltage (V)
R1
0
INPUT
-2
-4
Vs = +/-5V_RL=2K_AV=+5
-6
0
100
200
300
400
500
600
700
800
900
1,000
Time (ns)
Figure 5: Overdrive Recovery
© 2007-2014 Exar Corporation
17 / 27 exar.com/XR8051
Rev 1B
XR8051, XR8052, XR8054
Power dissipation should not be a factor when operating
under the stated 2kΩ load condition. However, applications
with low impedance, DC coupled loads should be analyzed
to ensure that maximum allowed junction temperature is
not exceeded. Guidelines listed below can be used to verify
that the particular application will not cause the device to
operate beyond it’s intended operating range.
Maximum power levels are set by the absolute maximum
junction rating of 170°C. To calculate the junction
temperature, the package thermal resistance value ThetaJA
(θJA) is used along with the total die power dissipation.
TJunction = TAmbient + (θJA × PD)
Where TAmbient is the temperature of the working
environment.
In order to determine PD, the power dissipated in the load
needs to be subtracted from the total power delivered by the
supplies.
Assuming the load is referenced in the middle of the power
rails or Vsupply/2.
The XR8051 is short circuit protected. However, this may not
guarantee that the maximum junction temperature (+150°C)
is not exceeded under all conditions. Figure 6 shows the
maximum safe power dissipation in the package vs. the
ambient temperature for the packages available.
2.5
Maximum Power Dissipation (W)
Power Dissipation
TSSOP-14
2
SOIC-14
1.5
SOIC-8
1
0.5
TSOT-5
MSOP-8
0
-40
-20
0
20
40
60
80
100
120
Ambient Temperature (°C)
PD = Psupply - Pload
Figure 6. Maximum Power Derating
Supply power is calculated by the standard power equation.
Psupply = Vsupply × IRMSsupply
Vsupply = VS+ - VSPower delivered to a purely resistive load is:
Pload = ((Vload)RMS2)/Rloadeff
The effective load resistor (Rloadeff) will need to include the
effect of the feedback network. For instance,
Rloadeff in Figure 3 would be calculated as:
Driving Capacitive Loads
Increased phase delay at the output due to capacitive loading
can cause ringing, peaking in the frequency response, and
possible unstable behavior. Use a series resistance, RS,
between the amplifier and the load to help improve stability
and settling performance. Refer to Figure 7.
Input
+
RL || (Rf + Rg)
These measurements are basic and are relatively easy to
perform with standard lab equipment. For design purposes
however, prior knowledge of actual signal levels and load
impedance is needed to determine the dissipated power.
Here, PD can be found from
PD = PQuiescent + PDynamic - Pload
Quiescent power can be derived from the specified IS values
along with known supply voltage, Vsupply. Load power can
be calculated as above with the desired signal amplitudes
using:
(Vload)RMS = Vpeak / √2
( Iload)RMS = ( Vload)RMS / Rloadeff
The dynamic power is focused primarily within the output
stage driving the load. This value can be calculated as:
PDynamic = (VS+ - Vload)RMS × ( Iload)RMS
© 2007-2014 Exar Corporation
Rs
Rf
Output
CL
RL
Rg
Figure 7. Addition of RS for Driving Capacitive Loads
Table 1 provides the recommended RS for various capacitive
loads. The recommended RS values result in approximately
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