DATASHEET
HA-2640, HA-2645
4MHz, High Supply Voltage Operational Amplifiers
HA-2640 and HA-2645 are monolithic operational amplifiers
which are designed to deliver unprecedented dynamic
specifications for a high voltage internally compensated
device. These dielectrically isolated devices offer very low
values for offset voltage and offset current coupled with
large output voltage swing and common mode input voltage.
For maximum reliability, these amplifiers offer unconditional
output overload protection through current limiting and a chip
temperature sensing circuit. This sensing device turns the
amplifier “off”, when the chip reaches a certain temperature
level.
These amplifiers deliver
35V
common mode input voltage
range,
35V
output voltage swing, and up to
40V
supply
range for use in such designs as regulators, power supplies,
and industrial control systems. 4MHz gain bandwidth and
5V/s slew rate make these devices excellent components
for high performance signal conditioning applications.
Outstanding input and output voltage swings coupled with a
low 5nA offset current make these amplifiers excitation
designs.
FN2904
Rev 6.00
August 7, 2015
Features
• Output Voltage Swing . . . . . . . . . . . . . . . . . . . . . . .
35V
• Supply Voltage . . . . . . . . . . . . . . . . . . . . . .
10V
to
40V
• Offset Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5nA
• Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4MHz
• Slew Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V/s
• Common Mode Input Voltage Range. . . . . . . . . . . .
35V
• Output Overload Protection
Applications
• Industrial Control Systems
• Power Supplies
• High Voltage Regulators
• Resolver Excitation
• Signal Conditioning
Ordering Information
PART NUMBER
HA2-2640-2
HA7-2640-2
HA2-2645-5 (No longer available or supported)
HA7-2645-5 (No longer available or supported)
PART MARKING TEMP. RANGE (
o
C)
HA2-2640-2
HA7-2640-2
HA2-2645-5
HA7-2645-5
-55 to 125
-55 to 125
0 to 75
0 to 75
PACKAGE
PKG. DWG. #
8 Pin Metal Can T8.C
8 Ld CERDIP
F8.3A
8 Pin Metal Can T8.C
8 Ld CERDIP
F8.3A
Pinouts
HA-2640/2645
(CERDIP)
TOP VIEW
HA-2640/2645
(METAL CAN)
TOP VIEW
COMP
8
BAL
-IN
1
2
8 COMP
BAL 1
7
V+
+IN 3
V- 4
-
+
7 V+
6 OUT
5 BAL
-IN
2
-
+
3
4
V-
5
6
OUT
+IN
BAL
(TO-99 CASE VOLTAGE = FLOATING)
FN2904 Rev 6.00
August 7, 2015
Page 1 of 9
HA-2640, HA-2645
Absolute Maximum Ratings
Voltage Between V+ and V- Terminals . . . . . . . . . . . . . . . . . . 100V
Differential Input Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . 37V
Output Current . . . . . . . . . . . . . . . . . . . . Full Short Circuit Protection
Thermal Information
Thermal Resistance (Typical, Note 1)
JA
(
o
C/W)
JC
(
o
C/W)
CERDIP Package. . . . . . . . . . . . . . . . .
135
50
Metal Can Package . . . . . . . . . . . . . . .
165
80
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . .175
o
C
Maximum Storage Temperature Range . . . . . . . . . -65
o
C to 150
o
C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300
o
C
Operating Conditions
Temperature Range
HA-2640-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55
o
C to 125
o
C
HA-2645-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
o
C to 75
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.
NOTE:
1.
JA
is measured with the component mounted on an evaluation PC board in free air.
Electrical Specifications
PARAMETER
INPUT CHARACTERISTICS
Offset Voltage
Average Offset Voltage Drift
Bias Current
Offset Current
Input Resistance (Note 2)
Common Mode Range
TRANSFER CHARACTERISTICS
Large Signal Voltage Gain
Common Mode Rejection Ratio
Minimum Stable Gain
Unity Gain Bandwidth
OUTPUT CHARACTERISTICS
Output Voltage Swing
Output Current
Output Resistance
Full Power Bandwidth (Note 3)
Rise Time
Overshoot
Slew Rate
V
SUPPLY
=
40V,
R
L
= 5k, Unless Otherwise Specified
TEST CONDITIONS
TEMP
(
o
C)
25
Full
Full
25
Full
25
Full
25
Full
V
OUT
=
30V
V
CM
=
20V
V
OUT
= 90mV
25
Full
Full
25
25
Full
R
L
= 1k
Open Loop
V
OUT
=
35V
V
OUT
=
200mV
V
OUT
=
200mV
25
25
25
25
25
25
25
Full
V
S
=
10V
to
40V
Full
-
-
-
-
-
50
35
100
75
80
1
-
35
12
-
-
-
-
3
-
10
80
HA-2640-2
MIN
-
TYP
2
-
15
10
-
5
-
250
-
200
-
100
-
4
-
15
500
23
60
15
5
3.2
-
90
MAX
4
6
-
25
50
12
35
-
-
-
-
-
-
-
-
-
-
-
135
30
-
3.8
40
-
2.5
-
10
74
MIN
-
-
-
-
-
-
-
40
35
100
75
74
1
-
35
10
-
-
-
HA-2645-5
TYP
2
-
15
12
-
15
-
200
-
200
-
100
-
4
-
12
500
23
60
15
5
3.2
-
90
MAX
6
7
-
30
50
30
50
-
-
-
-
-
-
-
-
-
-
-
135
40
-
4.5
40
-
UNITS
mV
mV
V/
o
C
nA
nA
nA
nA
M
V
kV/V
kV/V
dB
V/V
MHz
V
mA
kHz
ns
%
V/s
mA
V
dB
TRANSIENT RESPONSE
A
V
= +1, C
L
= 50pF, R
L
= 5k
POWER SUPPLY CHARACTERISTICS
Supply Current
Supply Voltage Range
Power Supply Rejection Ratio
NOTES:
2. This parameter is based upon design calculations.
3. Full Power Bandwidth guaranteed based upon slew rate measurement: FPBW = S.R./2
V
PEAK
; V
PEAK
= 35V.
FN2904 Rev 6.00
August 7, 2015
Page 2 of 9
HA-2640, HA-2645
Schematic Diagram
8 COMP
R
25
R
1
Q
1
R
5
Q
17
Q
15
R
6
R
7
Q
28
Q
30
R
25
R
4
Q
3
Q
5
Q
14
Q
7
Q9
Q
8
Q
13
Q
10
Q
4
Q
6
Q
12
Q
61
Q
18
Q
29
Q
31
D
2
D
3
Q
D
4 19
D
5
D
6
D
7
D
8
D
9
R
2
Q
16
Q
25
R
3
Q
11
3 +IN
R
10
R
27
R
11
2 -IN
5
BAL
R
26
1
BAL
R
17
R
18
Q
26
Q
27
Q
20
Q
47
Q
57
Q
59
R
23
6
V
OUT
Q
35
R
8
R
9
Q
34
Q
40
C
4
Q
46
D
13
C
3
Q
53
Q
55
R
12
R
21
R
22
7
V+
C
1
D
17
Q
21
Q
22
Q
23
Q
24
Q
32
Q
33
Q
36
Q
37
Q
38
Q
39
Q
41
Q
43
D
12
Q
51
Q
44
Q
48
Q
56
D
15
R
24
D
16
D
10
D
11
C
2
Q
42
R
13
Q
60
Q
58
R
15
R
14
R
16
Q
49
Q
52
Q
54
Q
50
R
19
R
20
4
V-
Test Circuits and Waveform
COMP
CAP
8
1
V+
IN
+
2
3
10k
4
7
-
+
5
6
-
OUT
5K
V-
50pF
V-
FIGURE 1. SLEW RATE AND TRANSIENT RESPONSE TEST
CIRCUIT
NOTE: Tested offset adjustment range is |V
OS
+1mV| minimum
referred to output. Typical range is
20mV
with R
T
= 10k.
FIGURE 2. SUGGESTED V
OS
ADJUSTMENT AND
COMPENSATION HOOK UP
FN2904 Rev 6.00
August 7, 2015
Page 3 of 9
HA-2640, HA-2645
Test Circuits and Waveform
(Continued)
Vertical = 10V/Div., Horizontal = 5s/Div.
NOTE: R
L
= 5k, C
L
= 50pF, T
A
= 25
o
C, V
S
=
40V
FIGURE 3. VOLTAGE FOLLOWER PULSE RESPONSE
Typical Performance Curves
25
V
S
=
40V,
T
A
= 25
o
C, Unless Otherwise Specified
1000
INPUT NOISE VOLTAGE (nV/Hz)
10
INPUT NOISE CURRENT (pA/Hz)
PHASE ANGLE (DEGREES)
20
CURRENT (nA)
100
INPUT NOISE CURRENT
10
INPUT NOISE VOLTAGE
1
15
10
BIAS CURRENT
0.1
5
OFFSET CURRENT
0
-50
-25
0
25
50
75
100
125
1
1
10
100
1K
10K
0.01
100K
TEMPERATURE (
o
C)
FREQUENCY (Hz)
FIGURE 4. INPUT BIAS AND OFFSET CURRENT vs
TEMPERATURE
NORMALIZED VALUE REFERRED TO 25
o
C
FIGURE 5. INPUT NOISE CHARACTERISTICS
0
OPEN LOOP VOLTAGE GAIN (dB)
1.4
120
80
40
0
-40
GAIN
45
90
135
180
225
270
1.2
PHASE
1.0
SLEW RATE
BANDWIDTH
0.8
-50
-25
0
25
50
75
TEMPERATURE (
o
C)
100
125
10
100
1K
10K
100K
1M
10M
FREQUENCY (Hz)
FIGURE 6. NORMALIZED AC PARAMETERS vs TEMPERATURE
FIGURE 7. OPEN LOOP FREQUENCY RESPONSE
FN2904 Rev 6.00
August 7, 2015
Page 4 of 9
HA-2640, HA-2645
Typical Performance Curves
NORMALIZED VALUE REFERRED TO
30V
1.2
V
S
=
40V,
T
A
= 25
o
C, Unless Otherwise Specified
(Continued)
120
1.1
OPEN LOOP GAIN (dB)
80
40
0
40
300pF
1,000pF
AUT
C
COMP
C
L
=
100pF
0pF
30pF
100pF
SLEW RATE
1.0
BANDWIDTH
0.9
0.8
10
20
30
40
10
100
1K
10K
100K
1M
10M
SUPPLY VOLTAGE (V)
FREQUENCY (Hz)
FIGURE 8. NORMALIZED AC PARAMETERS vs SUPPLY
VOLTAGE AT 25
o
C
FIGURE 9. OPEN LOOP FREQUENCY RESPONSE FOR
VARIOUS VALUES OF CAPACITORS FROM
COMPENSATION PIN TO GROUND
100
OUTPUT VOLTAGE SWING (V
P-P
)
V
SUPPLY
=
40V
V
SUPPLY
=
20V
OUTPUT VOLTAGE (V)
10.0
V
SUPPLY
=
10V
A
V
= 1, V
SUPPLY
=
20V
V
IN
= +15V
-55
o
C 25
o
C 125
o
C
-20
-15
-10
-5
A
V
= 1, V
SUPPLY
=
40V
V
IN
= +35V
40
30
20
10
5
10
15
20
125
o
C 25
o
C -55
o
C
-10
A
V
= 1, V
SUPPLY
=
20V
V
IN
= -15V
-20
-30
-40
125
o
C
25
o
C
-55
o
C
1.0
-55
o
C
125
o
C
25
o
C
0.1
1K
10K
100K
FREQUENCY (Hz)
1M
A
V
= 1, V
SUPPLY
=
40V
V
IN
= -35V
OUTPUT LOAD CURRENT (mA)
FIGURE 10. OUTPUT VOLTAGE SWING vs FREQUENCY
2.5
OUTPUT VOLTAGE SWING (V)
2.0
SUPPLY CURRENT (mA)
1.5
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
-2.5
10
15
20
25
-I
CC
30
35
40
+I
CC
FIGURE 11. OUTPUT CURRENT CHARACTERISTIC
40
30
20
10
0
-10
-20
-30
-40
10
15
20
25
-V
OUT
30
35
40
+V
OUT
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
FIGURE 12. SUPPLY CURRENT vs SUPPLY VOLTAGE
FIGURE 13. OUTPUT VOLTAGE SWING vs SUPPLY VOLTAGE
FN2904 Rev 6.00
August 7, 2015
Page 5 of 9
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