INTERSIL HFA1105IP

HFA1105
September 1998
File Number 3395.6
330MHz, Low Power, Current Feedback
Video Operational Amplifier
Features
The HFA1105 is a high speed, low power current feedback
amplifier built with Intersil’s proprietary complementary
bipolar UHF-1 process.
• High Input Impedance . . . . . . . . . . . . . . . . . . . . . . . 1MΩ
This amplifier features an excellent combination of low
power dissipation (58mW) and high performance. The slew
rate, bandwidth, and low output impedance (0.08Ω) make
this amplifier a good choice for driving Flash ADCs.
Component and composite video systems also benefit from
this op amp’s excellent gain flatness, and good differential
gain and phase specifications. The HFA1105 is ideal for
interfacing to Intersil’s line of video crosspoint switches
(HA4201, HA4600, HA4314, HA4404, HA4344), to create
high performance, low power switchers and routers.
The HFA1105 is a low power, high performance upgrade for
the CLC406. For a comparable amplifier with output disable
or output limiting functions, please see the data sheets for
the HFA1145 and HFA1135 respectively.
For Military grade product, please refer to the HFA1145/883
data sheet.
TEMP.
RANGE (oC)
• Very Fast Slew Rate . . . . . . . . . . . . . . . . . . . . . . 1000V/µs
• Gain Flatness (to 75MHz) . . . . . . . . . . . . . . . . . . . . 0.1dB
• Differential Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.02%
• Differential Phase . . . . . . . . . . . . . . . . . . . . 0.03 Degrees
• Pin Compatible Upgrade for CLC406
Applications
• Flash A/D Drivers
• Video Switching and Routing
• Professional Video Processing
• Video Digitizing Boards/Systems
• Multimedia Systems
• RGB Preamps
• Hand Held and Miniaturized RF Equipment
PACKAGE
PKG. NO.
• Battery Powered Communications
Pinout
HFA1105IP
-40 to 85
8 Ld PDIP
E8.3
HFA1105IB
(H1105I)
-40 to 85
8 Ld SOIC
M8.15
HFA11XXEVAL
• Wide -3dB Bandwidth. . . . . . . . . . . . . . . . . . . . . . 330MHz
• Medical Imaging
Ordering Information
PART NUMBER
(BRAND)
• Low Supply Current . . . . . . . . . . . . . . . . . . . . . . . . 5.8mA
HFA1105
(PDIP, SOIC)
TOP VIEW
DIP Evaluation Board for High Speed
Op Amps
1
NC
1
-IN
2
+IN
3
V-
4
+
8
NC
7
V+
6
OUT
5
NC
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999
HFA1105
Absolute Maximum Ratings
Thermal Information
Supply Voltage (V+ to V-). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11V
DC Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VSUPPLY
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8V
Output Current (Note 1) . . . . . . . . . . . . . . . . .Short Circuit Protected
30mA Continuous
60mA ≤ 50% Duty Cycle
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >600V
Thermal Resistance (Typical, Note 2)
θJA (oC/W)
PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
130
SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
170
Maximum Junction Temperature (Die) . . . . . . . . . . . . . . . . . . . .175oC
Maximum Junction Temperature (Plastic Package) . . . . . . . .150oC
Maximum Storage Temperature Range . . . . . . . . . . -65oC to 150oC
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC
(SOIC - Lead Tips Only)
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to 85oC
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
1. Output is short circuit protected to ground. Brief short circuits to ground will not degrade reliability, however continuous (100% duty cycle) output
current must not exceed 30mA for maximum reliability.
2. θJA is measured with the component mounted on an evaluation PC board in free air.
Electrical Specifications
VSUPPLY = ±5V, AV = +1, RF = 510Ω, RL = 100Ω, Unless Otherwise Specified
(NOTE 3)
PARAMETER
TEST CONDITIONS
TEST
LEVEL
TEMP.
(oC)
MIN
TYP
MAX
UNITS
INPUT CHARACTERISTICS
Input Offset Voltage
A
25
-
2
5
mV
A
Full
-
3
8
mV
B
Full
-
1
10
µV/oC
∆VCM = ±1.8V
A
25
47
50
-
dB
∆VCM = ±1.8V
A
85
45
48
-
dB
∆VCM = ±1.2V
A
-40
45
48
-
dB
Average Input Offset Voltage Drift
Input Offset Voltage
Common-Mode Rejection Ratio
Input Offset Voltage
Power Supply Rejection Ratio
∆VPS = ±1.8V
A
25
50
54
-
dB
∆VPS = ±1.8V
A
85
47
50
-
dB
∆VPS = ±1.2V
A
-40
47
50
-
dB
A
25
-
6
15
µA
A
Full
-
10
25
µA
B
Full
-
5
60
nA/oC
∆VPS = ±1.8V
A
25
-
0.5
1
µA/V
∆VPS = ±1.8V
A
85
-
0.8
3
µA/V
∆VPS = ±1.2V
A
-40
-
0.8
3
µA/V
∆VCM = ±1.8V
A
25
0.8
1.2
-
MΩ
∆VCM = ±1.8V
A
85
0.5
0.8
-
MΩ
∆VCM = ±1.2V
A
-40
0.5
0.8
-
MΩ
A
25
-
2
7.5
µA
A
Full
-
5
15
µA
B
Full
-
60
200
nA/oC
∆VCM = ±1.8V
A
25
-
3
6
µA/V
∆VCM = ±1.8V
A
85
-
4
8
µA/V
∆VCM = ±1.2V
A
-40
-
4
8
µA/V
Non-Inverting Input Bias Current
Non-Inverting Input Bias Current Drift
Non-Inverting Input Bias Current
Power Supply Sensitivity
Non-Inverting Input Resistance
Inverting Input Bias Current
Inverting Input Bias Current Drift
Inverting Input Bias Current
Common-Mode Sensitivity
Inverting Input Bias Current
Power Supply Sensitivity
2
∆VPS = ±1.8V
A
25
-
2
5
µA/V
∆VPS = ±1.8V
A
85
-
4
8
µA/V
∆VPS = ±1.2V
A
-40
-
4
8
µA/V
HFA1105
Electrical Specifications
VSUPPLY = ±5V, AV = +1, RF = 510Ω, RL = 100Ω, Unless Otherwise Specified (Continued)
(NOTE 3)
TEST
LEVEL
TEMP.
(oC)
MIN
Inverting Input Resistance
C
25
-
60
-
Ω
Input Capacitance
C
25
-
1.6
-
pF
Input Voltage Common Mode Range
(Implied by VIO CMRR, +RIN, and -IBIAS CMS Tests)
A
25, 85
±1.8
±2.4
-
V
A
-40
±1.2
±1.7
-
V
B
25
-
3.5
-
nV/√Hz
PARAMETER
Input Noise Voltage Density (Note 6)
TEST CONDITIONS
f = 100kHz
TYP
MAX
UNITS
Non-Inverting Input Noise Current Density (Note 6)
f = 100kHz
B
25
-
2.5
-
pA/√Hz
Inverting Input Noise Current Density (Note 6)
f = 100kHz
B
25
-
20
-
pA/√Hz
AV = -1
C
25
-
500
-
kΩ
AV = +1, +RS = 510Ω
B
25
-
270
-
MHz
B
Full
-
240
-
MHz
AV = -1, RF = 425Ω
B
25
-
300
-
MHz
TRANSFER CHARACTERISTICS
Open Loop Transimpedance Gain
AC CHARACTERISTICS
RF = 510Ω, Unless Otherwise Specified
-3dB Bandwidth
(VOUT = 0.2VP-P, Note 6)
AV = +2
AV = +10, RF = 180Ω
B
25
-
330
-
MHz
B
Full
-
260
-
MHz
B
25
-
130
-
MHz
B
Full
-
90
-
MHz
Full Power Bandwidth
(VOUT = 5VP-P at AV = +2/-1,
4VP-P at AV = +1, Note 6)
AV = +1, +RS = 510Ω
B
25
-
135
-
MHz
AV = -1
B
25
-
140
-
MHz
AV = +2
B
25
-
115
-
MHz
Gain Flatness
(AV = +2, VOUT = 0.2VP-P, Note 6)
To 25MHz
B
25
-
±0.03
-
dB
B
Full
-
±0.04
-
dB
To 75MHz
B
25
-
±0.11
-
dB
B
Full
-
±0.22
-
dB
To 25MHz
B
25
-
±0.03
-
dB
To 75MHz
B
25
-
±0.09
-
dB
A
Full
-
1
-
V/V
25
±3
±3.4
-
V
Gain Flatness
(AV = +1, +RS = 510Ω, VOUT = 0.2VP-P, Note 6)
Minimum Stable gain
OUTPUT CHARACTERISTICS AV = +2, RF = 510Ω, Unless Otherwise Specified
Output Voltage Swing (Note 6)
AV = -1, RL = 100Ω
A
A
Full
±2.8
±3
-
V
Output Current (Note 6)
AV = -1, RL = 50Ω
A
25, 85
50
60
-
mA
A
-40
28
42
-
mA
Output Short Circuit Current
B
25
-
90
-
mA
Closed Loop Output Impedance (Note 6)
DC
B
25
-
0.08
-
Ω
Second Harmonic Distortion
(VOUT = 2VP-P, Note 6)
10MHz
B
25
-
-48
-
dBc
20MHz
B
25
-
-44
-
dBc
Third Harmonic Distortion
(VOUT = 2VP-P, Note 6)
10MHz
B
25
-
-50
-
dBc
20MHz
B
25
-
-45
-
dBc
Reverse Isolation (S12, Note 6)
30MHz
B
25
-
-55
-
dB
B
25
-
1.1
-
ns
B
Full
-
1.4
-
ns
TRANSIENT CHARACTERISTICS AV = +2, RF = 510Ω, Unless Otherwise Specified
Rise and Fall Times
VOUT = 0.5VP-P
3
HFA1105
VSUPPLY = ±5V, AV = +1, RF = 510Ω, RL = 100Ω, Unless Otherwise Specified (Continued)
Electrical Specifications
(NOTE 3)
PARAMETER
TEST CONDITIONS
TEST
LEVEL
TEMP.
(oC)
MIN
TYP
MAX
UNITS
Overshoot (Note 4)
(VOUT = 0 to 0.5V, VIN tRISE = 1ns)
+OS
B
25
-
3
-
%
-OS
B
25
-
5
-
%
Overshoot (Note 4)
(VOUT = 0.5VP-P, VIN tRISE = 1ns)
+OS
B
25
-
3
-
%
-OS
B
25
-
11
-
%
Slew Rate
(VOUT = 4VP-P, AV = +1, +RS = 510Ω)
+SR
B
25
-
1000
-
V/µs
B
Full
-
975
-
V/µs
-SR (Note 5)
B
25
-
650
-
V/µs
B
Full
-
580
-
V/µs
B
25
-
1400
-
V/µs
B
Full
-
1200
-
V/µs
-SR (Note 5)
B
25
-
800
-
V/µs
B
Full
-
700
-
V/µs
+SR
B
25
-
2100
-
V/µs
B
Full
-
1900
-
V/µs
-SR (Note 5)
B
25
-
1000
-
V/µs
B
Full
-
900
-
V/µs
To 0.1%
B
25
-
15
-
ns
To 0.05%
B
25
-
23
-
ns
To 0.02%
B
25
-
30
-
ns
VIN = ±2V
B
25
-
8.5
-
ns
Slew Rate
(VOUT = 5VP-P, AV = +2)
+SR
Slew Rate
(VOUT = 5VP-P, AV = -1)
Settling Time
(VOUT = +2V to 0V step, Note 6)
Overdrive Recovery Time
VIDEO CHARACTERISTICS
AV = +2, RF = 510Ω, Unless Otherwise Specified
Differential Gain
(f = 3.58MHz)
RL = 150Ω
B
25
-
0.02
-
%
RL = 75Ω
B
25
-
0.03
-
%
Differential Phase
(f = 3.58MHz)
RL = 150Ω
B
25
-
0.03
-
Degrees
RL = 75Ω
B
25
-
0.05
-
Degrees
C
25
±4.5
-
±5.5
V
A
25
-
5.8
6.1
mA
A
Full
-
5.9
6.3
mA
POWER SUPPLY CHARACTERISTICS
Power Supply Range
Power Supply Current (Note 6)
NOTES:
3. Test Level: A. Production Tested; B. Typical or Guaranteed Limit Based on Characterization; C. Design Typical for Information Only.
4. Undershoot dominates for output signal swings below GND (e.g., 0.5VP-P), yielding a higher overshoot limit compared to the VOUT = 0 to 0.5V
condition. See the “Application Information” section for details.
5. Slew rates are asymmetrical if the output swings below GND (e.g. a bipolar signal). Positive unipolar output signals have symmetric positive and
negative slew rates comparable to the +SR specification. See the “Application Information” section, and the pulse response graphs for details.
6. See Typical Performance Curves for more information.
Application Information
Optimum Feedback Resistor
Although a current feedback amplifier’s bandwidth
dependency on closed loop gain isn’t as severe as that of a
voltage feedback amplifier, there can be an appreciable
decrease in bandwidth at higher gains. This decrease may
be minimized by taking advantage of the current feedback
4
amplifier’s unique relationship between bandwidth and RF.
All current feedback amplifiers require a feedback resistor,
even for unity gain applications, and RF, in conjunction with
the internal compensation capacitor, sets the dominant pole
of the frequency response. Thus, the amplifier’s bandwidth is
inversely proportional to RF. The HFA1105 design is
optimized for RF = 510Ω at a gain of +2. Decreasing RF
decreases stability, resulting in excessive peaking and
HFA1105
overshoot (Note: Capacitive feedback will cause the same
problems due to the feedback impedance decrease at higher
frequencies). At higher gains, however, the amplifier is more
stable so RF can be decreased in a trade-off of stability for
bandwidth.
The table below lists recommended RF values for various
gains, and the expected bandwidth. For a gain of +1, a
resistor (+RS) in series with +IN is required to reduce gain
peaking and increase stability.
Terminated microstrip signal lines are recommended at the
device’s input and output connections. Capacitance,
parasitic or planned, connected to the output must be
minimized, or isolated as discussed in the next section.
Care must also be taken to minimize the capacitance to
ground at the amplifier’s inverting input (-IN), as this
capacitance causes gain peaking, pulse overshoot, and if
large enough, instability. To reduce this capacitance, the
designer should remove the ground plane under traces
connected to
-IN, and keep connections to -IN as short as possible.
An example of a good high frequency layout is the
Evaluation Board shown in Figure 2.
GAIN
(ACL)
RF (Ω)
BANDWIDTH
(MHz)
-1
425
300
Driving Capacitive Loads
+1
510 (+RS = 510Ω)
270
+2
510
330
+5
200
300
+10
180
130
Capacitive loads, such as an A/D input, or an improperly
terminated transmission line will degrade the amplifier’s
phase margin resulting in frequency response peaking and
possible oscillations. In most cases, the oscillation can be
avoided by placing a resistor (RS) in series with the output
prior to the capacitance.
Non-Inverting Input Source Impedance
For best operation, the DC source impedance seen by the
non-inverting input should be ≥50Ω. This is especially
important in inverting gain configurations where the noninverting input would normally be connected directly to GND.
Pulse Undershoot and Asymmetrical Slew Rates
The HFA1105 utilizes a quasi-complementary output stage to
achieve high output current while minimizing quiescent supply
current. In this approach, a composite device replaces the
traditional PNP pulldown transistor. The composite device
switches modes after crossing 0V, resulting in added
distortion for signals swinging below ground, and an
increased undershoot on the negative portion of the output
waveform (See Figures 5, 8, and 11). This undershoot isn’t
present for small bipolar signals, or large positive signals.
Another artifact of the composite device is asymmetrical slew
rates for output signals with a negative voltage component.
The slew rate degrades as the output signal crosses through
0V (See Figures 5, 8, and 11), resulting in a slower overall
negative slew rate. Positive only signals have symmetrical
slew rates as illustrated in the large signal positive pulse
response graphs (See Figures 4, 7, and 10).
PC Board Layout
The amplifier’s frequency response depends greatly on the
care taken in designing the PC board. The use of low
inductance components such as chip resistors and chip
capacitors is strongly recommended, while a solid
ground plane is a must!
Attention should be given to decoupling the power supplies.
A large value (10µF) tantalum in parallel with a small value
(0.1µF) chip capacitor works well in most cases.
5
Figure 1 details starting points for the selection of this
resistor. The points on the curve indicate the RS and CL
combinations for the optimum bandwidth, stability, and
settling time, but experimental fine tuning is recommended.
Picking a point above or to the right of the curve yields an
overdamped response, while points below or left of the curve
indicate areas of underdamped performance.
RS and CL form a low pass network at the output, thus limiting
system bandwidth well below the amplifier bandwidth of
270MHz (for AV = +1). By decreasing RS as CL increases (as
illustrated in the curves), the maximum bandwidth is obtained
without sacrificing stability. In spite of this, the bandwidth
decreases as the load capacitance increases. For example, at
AV = +1, RS = 62Ω, CL = 40pF, the overall bandwidth is limited
to 180MHz, and bandwidth drops to 75MHz at AV = +1,
RS = 8Ω, CL = 400pF.
HFA1105
SERIES OUTPUT RESISTANCE (Ω)
50
510
510
VH
R1
40
50Ω
IN
30
10µF
20
1
8
2
7
3
6
4
5
+5V
50Ω
OUT
GND
0.1µF
-5V
AV = +1
10µF
0.1µF
VL
GND
FIGURE 2C. SCHEMATIC
AV = +2
10
FIGURE 2. EVALUATION BOARD SCHEMATIC AND LAYOUT
0
0
100
50
150
200
300
250
350
400
LOAD CAPACITANCE (pF)
FIGURE 1. RECOMMENDED SERIES OUTPUT RESISTOR vs
LOAD CAPACITANCE
Evaluation Board
The performance of the HFA1105 may be evaluated using
the HFA11XX Evaluation Board.
The layout and schematic of the board are shown in Figure
2. To order evaluation boards (part number HFA11XXEVAL),
please contact your local sales office.
VH
1
+IN
OUT
VL
V+
VGND
FIGURE 2A. TOP LAYOUT
FIGURE 2B. BOTTOM LAYOUT
6
HFA1105
Typical Performance Curves
200
3.0
AV = +1
+RS = 510Ω
2.5
100
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (mV)
150
VSUPPLY = ±5V, RF = 510Ω, TA = 25oC, RL = 100Ω, Unless Otherwise Specified
50
0
-50
-100
AV = +1
+RS = 510Ω
2.0
1.5
1.0
0.5
0
-0.5
-150
-1.0
-200
TIME (5ns/DIV.)
TIME (5ns/DIV.)
FIGURE 3. SMALL SIGNAL PULSE RESPONSE
2.0
200
AV = +1
+RS = 510Ω
AV = +2
150
1.0
OUTPUT VOLTAGE (mV)
OUTPUT VOLTAGE (V)
1.5
FIGURE 4. LARGE SIGNAL POSITIVE PULSE RESPONSE
0.5
0
-0.5
-1.0
-1.5
100
50
0
-50
-100
-150
-2.0
-200
TIME (5ns/DIV.)
TIME (5ns/DIV.)
FIGURE 5. LARGE SIGNAL BIPOLAR PULSE RESPONSE
FIGURE 6. SMALL SIGNAL PULSE RESPONSE
3.0
2.0
AV = +2
2.5
1.5
2.0
1.0
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
AV = +2
1.5
1.0
0.5
0
-0.5
0.5
0
-0.5
-1.0
-1.5
-1.0
-2.0
TIME (5ns/DIV.)
FIGURE 7. LARGE SIGNAL POSITIVE PULSE RESPONSE
7
TIME (5ns/DIV.)
FIGURE 8. LARGE SIGNAL BIPOLAR PULSE RESPONSE
HFA1105
Typical Performance Curves
VSUPPLY = ±5V, RF = 510Ω, TA = 25oC, RL = 100Ω, Unless Otherwise Specified (Continued)
3.0
200
AV = +10
RF = 180Ω
2.5
100
2.0
OUTPUT VOLTAGE (V)
50
0
-50
-100
1.5
1.0
0.5
0
-0.5
-150
-1.0
-200
TIME (5ns/DIV.)
TIME (5ns/DIV.)
FIGURE 10. LARGE SIGNAL POSITIVE PULSE RESPONSE
2.0
OUTPUT VOLTAGE (V)
1.5
GAIN (dB)
AV = +10
RF = 180Ω
1.0
3
0
VOUT = 200mVP-P
+RS = 510Ω (+1)
+RS = 0Ω (-1)
AV = +1
AV = -1
-3
0.5
0
90
-1.0
180
-1.5
AV = +1
-2.0
0.3
1
TIME (5ns/DIV.)
FIGURE 11. LARGE SIGNAL BIPOLAR PULSE RESPONSE
NORMALIZED GAIN (dB)
3
AV = +2
0
AV = +10
-3
AV = +5
AV = +2
VOUT = 200mVP-P
RF = 510Ω (+2)
RF = 200Ω (+5)
RF = 180Ω (+10)
0.3
1
0
90
AV = +5
180
AV = +10
10
FREQUENCY (MHz)
100
FIGURE 13. FREQUENCY RESPONSE
8
270
500
10
FREQUENCY (MHz)
100
270
500
FIGURE 12. FREQUENCY RESPONSE
AV = +2
VOUT = 200mVP-P
3
0
VOUT = 1.5VP-P
-3
VOUT = 5VP-P
VOUT = 200mVP-P
PHASE (DEGREES)
NORMALIZED GAIN (dB)
0
AV = -1
-0.5
NORMALIZED PHASE (DEGREES)
FIGURE 9. SMALL SIGNAL PULSE RESPONSE
0
90
VOUT = 1.5VP-P
180
270
VOUT = 5VP-P
0.3
1
10
100
PHASE (DEGREES)
OUTPUT VOLTAGE (mV)
150
AV = +10
RF = 180Ω
500
FREQUENCY (MHz)
FIGURE 14. FREQUENCY RESPONSE FOR VARIOUS OUTPUT
VOLTAGES
HFA1105
VSUPPLY = ±5V, RF = 510Ω, TA = 25oC, RL = 100Ω, Unless Otherwise Specified (Continued)
AV = -1
0
VOUT = 4VP-P (+1)
VOUT = 5VP-P (-1, +2)
+RS = 510Ω (+1)
-3
AV = +1
AV = +2
VOUT = 200mVP-P
3
AV = +2
RL = 500Ω
RL = 1kΩ
0
RL = 50Ω
-3
RL = 100Ω
RL = 50Ω
RL = 100Ω
0
90
RL = 1kΩ
RL = 500Ω
180
270
1
10
FREQUENCY (MHz)
100
0.3
200
FIGURE 15. FULL POWER BANDWIDTH
NORMALIZED GAIN (dB)
BANDWIDTH (MHz)
0.25
AV = +1
300
200
AV = +10
100
500
VOUT = 200mVP-P
+RS = 510Ω (+1)
VOUT = 200mVP-P
RF = 180Ω (+10)
+RS = 510Ω (+1)
400
100
FIGURE 16. FREQUENCY RESPONSE FOR VARIOUS LOAD
RESISTORS
500
AV = +2
10
FREQUENCY (MHz)
1
PHASE (DEGREES)
3
NORMALIZED GAIN (dB)
NORMALIZED GAIN (dB)
Typical Performance Curves
0.20
0.15
0.10
AV = +2
0.05
0
AV = +1
-0.05
-0.10
0
-100
-50
0
50
100
150
1
10
FREQUENCY (MHz)
TEMPERATURE (oC)
FIGURE 18. GAIN FLATNESS
-40
AV = +2
VOUT = 2VP-P
AV = +1, +2
OUTPUT IMPEDANCE (Ω)
REVERSE ISOLATION (dB)
FIGURE 17. -3dB BANDWIDTH vs TEMPERATURE
-50
-60
AV = -1
-70
-80
-90
0.3
1
75
10
FREQUENCY (MHz)
FIGURE 19. REVERSE ISOLATION
9
100
1K
100
10
1
0.1
0.01
0.3
1
10
100
FREQUENCY (MHz)
FIGURE 20. OUTPUT IMPEDANCE
1000
HFA1105
Typical Performance Curves
VSUPPLY = ±5V, RF = 510Ω, TA = 25oC, RL = 100Ω, Unless Otherwise Specified (Continued)
-30
AV = +2
0.8
AV = +2
VOUT = 2V
-40
DISTORTION (dBc)
SETTLING ERROR (%)
0.6
0.4
0.2
0.1
0
-0.2
-0.4
10MHz
-50
20MHz
-60
-0.6
-0.8
-70
3
8
13
18
23
28
TIME (ns)
33
38
43
-5
48
5
15
FIGURE 22. SECOND HARMONIC DISTORTION vs POUT
-30
3.6
AV = +2
3.5
OUTPUT VOLTAGE (V)
Hz
20M
-50
Hz
10M
-60
|-VOUT| (RL= 100Ω)
AV = -1
+VOUT (RL= 100Ω)
3.4
-40
3.3
3.2
3.1
+VOUT (RL= 50Ω)
3.0
2.9
2.8
|-VOUT| (RL= 50Ω)
2.7
2.6
-50
-70
-5
0
5
OUTPUT POWER (dBm)
10
15
-25
0
25
50
75
100
125
TEMPERATURE (oC)
FIGURE 23. THIRD HARMONIC DISTORTION vs POUT
100
FIGURE 24. OUTPUT VOLTAGE vs TEMPERATURE
100
10
10
ENI
I NI+
POWER SUPPLY CURRENT (mA)
INI-
6.1
NOISE CURRENT (pA/√Hz)
NOISE VOLTAGE (nV/√Hz)
10
OUTPUT POWER (dBm)
FIGURE 21. SETTLING RESPONSE
DISTORTION (dBc)
0
6.0
5.9
5.8
5.7
5.6
1
0.1
1
10
1
100
FREQUENCY (kHz)
FIGURE 25. INPUT NOISE CHARACTERISTICS
10
3.5
4
4.5
5
5.5
6
6.5
7
7.5
POWER SUPPLY VOLTAGE (±V)
FIGURE 26. SUPPLY CURRENT vs SUPPLY VOLTAGE
HFA1105
Die Characteristics
DIE DIMENSIONS:
PASSIVATION:
59 mils x 59 mils x 19 mils
1500µm x 1500µm x 483µm
Type: Nitride
Thickness: 4kÅ ±0.5kÅ
METALLIZATION:
TRANSISTOR COUNT:
Type: Metal 1: AICu(2%)/TiW
Thickness: Metal 1: 8kÅ ±0.4kÅ
75
SUBSTRATE POTENTIAL (Powered Up):
Type: Metal 2: AICu(2%)
Thickness: Metal 2: 16kÅ ±0.8kÅ
Floating
(Recommend Connection to V-)
Metallization Mask Layout
HFA1105
NC
-IN
V+
OUT
+IN
V-
NC
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Intersil semiconductor products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
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