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HFA-0002
Low Noise Wideband
Operational Amplifier
Description
The HFA-0002 is a very wideband, high slew rate, op amp,
featuring precision DC characteristics. Stable in gains of 10
or greater this all bipolar op amp offers a combination of AC
and DC performance never seen before in monolithic form.
The high gain bandwidth product (1GHz) and high slew rate
(250V/µs) make this op amp ideal for use in video and RF
circuits. The low offset voltage (0.6mV), low bias current
(0.23µA), and low voltage noise (2.7nV/√Hz) specifications
combined with the excellent AC characteristics make this op
amp ideal for high speed data acquisition systems with high
accuracy.
Features
• Wide Gain Bandwidth Product . . . . . . . . . . . . . . . 1GHz
• High Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . 250V/µs
• High Open Loop Gain . . . . . . . . . . . . . . . . . . . .105V/mV
• Low Offset Voltage . . . . . . . . . . . . . . . . . . . . . . . . 0.6mV
• Low Power Consumption . . . . . . . . . . . . . . . . . . 143mW
• Low Input Voltage Noise at 1kHz . . . . . . . . . .2.7nV/√Hz
• Monolithic Construction
Applications
• RF/IF Processors
• Video Amplifiers
• Radar Systems
• Pulse Amplifiers
• High Speed Communications
• Fast Data Acquisition Systems
Part Number Information
PART
NUMBER
HFA2-0002-5
HFA2-0002-9
HFA3-0002-5
HFA3-0002-9
HFA7-0002-5
HFA7-0002-9
HFA9P0002-5
HFA9P0002-9
TEMPERA-
TURE RANGE
0
o
C to +75
o
C
-40
o
C to +85
o
C
0
o
C to +75
o
C
-40
o
C to +85
o
C
0
o
C to +75
o
C
-40
o
C to +85
o
C
0
o
C to +75
o
C
-40
o
C to +85
o
C
PACKAGE
8 Pin CAN
8 Pin CAN
8 Lead Plastic DIP
8 Lead Plastic DIP
8 Lead Ceramic Sidebraze DIP
8 Lead Ceramic Sidebraze DIP
8 Lead SOIC
8 Lead SOIC
Pinouts
HFA-0002
(PDIP, CDIP, SOIC)
TOP VIEW
HFA-0002
(TO-99 METAL CAN)
TOP VIEW
NC
8
BAL 1
- IN 2
+IN
V-
3
4
+
8 NC
7 V+
6 OUT
5 BAL
+IN 3
BAL 1
- IN 2
+
7 V+
6 OUT
5 BAL
4
V-
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2002. All Rights Reserved
2-608
File Number
2917.3
DB500
Specifications HFA-0002
Absolute Maximum Ratings
(Note 1)
Supply Voltage Between V+ and V-Terminals . . . . . . . . . . . . . . 12V
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V
Input Voltage
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5V
Output Current
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20mA
Junction Temperature (Note 10). . . . . . . . . . . . . . . . . . . . . . +175
o
C
Junction Temperature (Plastic Package) . . . . . . . . . . . . . . . +150
o
C
Lead Temperature (Soldering 10 Sec.) . . . . . . . . . . . . . . . . +300
o
C
Operating Conditions
Operating Temperature Range :
HFA-0002-9 . . . . . . . . . . . . . . . . . . . . . . . . . . -40
o
C
≤
T
A
≤
+85
o
C
HFA-0002-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
o
C
≤
T
A
≤
+75
o
C
Storage Temperature Range . . . . . . . . . . . . . . -65
o
C
≤
T
A
≤
150
o
C
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.
Electrical Specifications
V+ = +5V, V- = -5V, Unless Otherwise Specified
HFA-0002-5/-9
PARAMETER
INPUT CHARACTERISTICS
Offset Voltage
TEMP
+25
o
C
Full
MIN
TYP
MAX
UNITS
-
-
-
-
-
-
-
-
±2.5
-
-
0.6
1.2
2.0
0.23
0.1
0.32
0.12
0.16
-
1
2
1
2
-
1.0
1.0
2.0
1.0
1.0
-
-
-
mV
mV
µV/
o
C
µA
µA
µA
µA
µA
V
MΩ
pF
Average Offset Voltage Drift
Bias Current
Full
+25
o
C
High
Low
+25
o
C
Full
Offset Current
Common Mode Range
Differential Input Resistance
Input Capacitance
Input Noise Voltage
0.1Hz to 10Hz
10Hz to 1MHz
Input Noise Voltage
f
O
= 10Hz
f
O
= 100Hz
f
O
= 1000Hz
Input Noise Current
f
O
= 10Hz
f
O
= 100Hz
f
O
= 1000Hz
TRANSFER CHARACTERISTICS
Large Signal Voltage Gain (Note 2, 4)
Common Mode Rejection Ratio (Note 3)
Full
+25
o
C
+25
o
C
+25
o
C
+25
o
C
+25
o
C
+25
o
C
+25
o
C
+25
o
C
+25
o
C
+25
o
C
-
-
5.1
2.02
-
-
nV
RMS
µV
RMS
nV/√Hz
nV/√Hz
nV/√Hz
-
-
-
8.9
3.7
2.7
-
-
-
-
-
-
25
8.4
4.5
-
-
-
pA/√Hz
pA/√Hz
pA/√Hz
Full
+25
o
C
Full
80
100
90
105
110
108
-
-
-
V/mV
dB
dB
Gain Bandwidth Product
f
O
= 1MHz
Minimum Stable Gain
OUTPUT CHARACTERISTICS
Output Voltage Swing (Note 4)
Full Power Bandwidth (Note 5)
Output Resistance, Open Loop
Output Current
TRANSIENT RESPONSE
Full
+25
o
C
+25
o
C
Full
±3.5
10.6
-
±10
±3.9
13.3
5
±12
-
-
-
-
V
MHz
Ω
mA
+25
o
C
Full
-
10
1
-
-
-
GHz
V/V
2-609
Specifications HFA-0002
Electrical Specifications
V+ = +5V, V- = -5V, Unless Otherwise Specified (Continued)
HFA-0002-5/-9
PARAMETER
Rise Time (Note 4, 6)
Slew Rate (Note 4, 7, 9)
Settling Time (Note 4, 7)
Overshoot (Note 4, 6)
POWER SUPPLY CHARACTERISTICS
Supply Current
Power Supply Rejection Ratio (Note 8)
NOTES:
1. Absolute maximum ratings are limiting values, applied individually, beyond which the serviceability of the circuit may be impaired. Func-
tional operation under any of these conditions is not necessarily implied.
2. V
OUT
=
±3V.
3.
∆V
CM
=
±2V.
Slew Rate
-
=
3.0V
.
5. Full Power Bandwidth is guaranteed by equation: FPBW =
-----------------------
, V
2π V peak peak
=
±100mV,
A = +10.
6. V
OUT
V
TEMP
+25
o
C
+25
o
C
+25
o
C
o
MIN
-
200
-
-
TYP
3.2
250
50
30
MAX
-
-
-
-
UNITS
ns
V/µs
ns
%
+25 C
Full
Full
-
90
14
99
20
-
mA
dB
4. R
L
= 5K, C
L
= 20pF.
7. V
OUT
=
±3V,
A
V
= +10.
8.
∆V
S
=
±4V
to
±6V.
9. This parameter is not tested. This limit is guaranteed based on characterization and reflects lot to lot variation.
10. See Thermal Constants in "Applications Information" section. Maximum power dissipation, including output load, must be designed to
maintain the junction temperature below +175
o
C for hermetic packages, and below +150
o
C for plastic packages.
Simplified Schematic Diagram
+BAL
BAL
+V
OUT
+IN
IN
V
Die Characteristics
Thermal Constants (
o
C/W)
CAN . . . . . . . . . . . . . . . . . . . . . . . . .
PDIP . . . . . . . . . . . . . . . . . . . . . . . .
CDIP . . . . . . . . . . . . . . . . . . . . . . . .
SOIC . . . . . . . . . . . . . . . . . . . . . . . .
θ
JA
117
96
75
158
θ
JC
36
34
13
43
2-610
HFA-0002
Test Circuits
V
IN
50Ω
+
V
OUT
4.5kΩ
20pF
500Ω
FIGURE 1. LARGE AND SMALL SIGNAL RESPONSE TEST CIRCUIT
0.3V
10mV
IN
0V
0V
-10mV
-0.3V
3V
100mV
OUT
0V
OUT
0V
-100mV
IN
-3V
LARGE SIGNAL RESPONSE
Input: 0.2V/Div. Output: 2V/Div.
Horizontal Scale: 20ns/Div.
SMALL SIGNAL RESPONSE
Input: 10mV/Div. Output: 100mV/Div.
V
SETTLE
1K
10K
• A
V
= -10
5K
• Feedback and summing resistors must be
matched (0.1%)
• HP5082-2810 clipping diodes recommended
+
V
OUT
• Tektronix P6201 FET probe used at settling point
500
V
IN
FIGURE 3. SETTLING TIME SCHEMATIC
2-611
HFA-0002
Typical Performance Curves
V
S
=
±5V,
T
A
= +25
o
C, Unless Otherwise Specified
120
100
GAIN (dB)
GAIN (dB)
80
60
40
20
0
PHASE
180
135
90
45
0
A
V
= +10, R
L
= 5K, C
L
= 20pF
80
60
40
20
0
PHASE
-20
0
45
90
135
180
GAIN
PHASE SHIFT (DEGREES)
PHASE SHIFT (DEGREES)
GAIN
PHASE MARGIN (DEGREES)
1K
10K
100K
1M
10M
FREQUENCY (Hz)
100M
500M
1M
10M
FREQUENCY (Hz)
100M
200M
FIGURE 4. OPEN LOOP GAIN AND PHASE vs FREQUENCY
FIGURE 5. CLOSED LOOP GAIN vs FREQUENCY
80
100
GAIN (dB)
80
PSRR (dB)
+PSRR
60
40
20
0
-PSRR
60
40
20
0
-20
A
V
= +100, R
L
= 5K, C
L
= 20pF
0
45
90
135
180
100
1K
10K
100K
1M
10M
100M
1K
10K
100K
1M
10M
100M
FREQUENCY (Hz)
FREQUENCY (Hz)
FIGURE 6. PSRR vs FREQUENCY
FIGURE 7. CLOSED LOOP GAIN vs FREQUENCY
V
OUT
= 3V, R
L
= 5K, C
L
= 20pF
120
100
SLEW RATE (V/µs)
80
CMRR (dB)
60
40
20
0
250
200
150
100
50
0
-60
300
100
1K
10K
100K
1M
FREQUENCY (Hz)
10M
100M
-40
-20
0
20
40
60
o
80
100
120
TEMPERATURE ( C)
FIGURE 8. CMRR vs FREQUENCY
FIGURE 9. SLEW RATE vs TEMPERATURE
2-612
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