AM-1435

AM-1435
Ultra-Fast, Wideband Operational Amplifiers
PRODUCT OVERVIEW
FEATURES
„ 70 nanosecond settling to ±0.01%
„ 1GHz gain bandwidth product
„ 100dB open loop gain
DATEL ’s AM-1435 is an ultrafast settling,
wideband operational amplifier. Utilizing precision thin-film hybrid construction and differential
input operational amplifier design techniques,
the AM-1435 achieves a settling time of only 70
nanoseconds for a 10V step to ±0.01% accuracy.
High-speed performance is optimized with high
open-loop gain, flat frequency response beyond
10kHz, and a roll-off of 6dB/octave to beyond
100MHz. Typically, gain bandwidth product is 1GHz,
and slew rate is ±300V/microsecond.
AM-1435’s dc characteristics include a dc
open loop gain of 100dB, 1MΩ input impedance,
and an initial input offset voltage of only ±2mV.
Input offset voltage drift is typically ±5μV/°C. Also
featured is a minimum common mode rejection
ratio of 80dB and full power frequency of 8MHz.
The AM-1435 is designed specifically for applications requiring high accuracy in the amplification
of complex wideband waveforms. Such applications include radar and sonar signal processing,
video instrumentation, ultrafast A/D and D/A
converters and sample-hold amplifiers.
Power supply requirements are ±15V at 30mA
maximum quiescent current. Models are specified
for operation over the commercial (0 to +70°C),
–40 to +100°C and military (–55 to +125°C)
temperature ranges. A high-reliability version
manufactured and screened to DATEL ’s QL screening program is also available. The package is a
14-pin ceramic DIP.
PIN
FUNCTION
1
OPTIONAL BYPASS CAPACITOR
2
OUTPUT
3
COMPENSATION CAPACITOR
4
+15V SUPPLY (+VS)
5
OFFSET ADJUST
6
OFFSET ADJUST
7
–INPUT
8
+INPUT
9
N.C.
10
N.C.
11
N.C.
„ 80dB minimum CMRR
12
–15V SUPPLY (–VS)
„ –55 to +125°C operation
13
OUTPUT CURRENT SINK
„ Industry standard
14
COMMON
FUNCTIONAL BLOCK DIAGRAM
OFFSET
ADJUST
COMPENSATION
CAPACITOR
5 6
3
+15V
SUPPLY
4
1 OPTIONAL
BYPASS CAPACITOR
–INPUT 7
+INPUT 8
2 OUTPUT
+
@14mA
13 OUTPUT
CURRENT SINK
14 COMMON
12
–15V SUPPLY
Figure 1. Functional Block Diagram
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
• Tel: (508) 339-3000
•
www.datel.com
•
e-mail: help@datel.com
MDA_AM-1435.C02 Page 1 of 4
AM-1435
Ultra-Fast, Wideband Operational Amplifiers
FUNCTIONAL SPECIFICATIONS
(Typical at +25°C and ±15V supplies, unless otherwise noted.)
INPUT
Differential Between Inputs
Common Mode Voltage Range ➀
Common Mode Rejection Ratio
1MHz
DC
Input Impedance
Common Mode
Differential Mode
Input Bias Current
Input Offset Current
Input Offset Voltage ➁
PERFORMANCE
DC Open Loop Gain ➂
Input Offset Voltage Drift
Input Bias Current Drift
Input Offset Current Drift
Input Voltage Noise
0.01Hz to 10Hz
100Hz to 10kHz
10Hz to 1MHz
Input Current Noise ➃
0.01Hz to 10Hz
100Hz to 10kHz
10Hz to 1MHz
Power Supply Rejection Ratio
DYNAMIC CHARACTERISTICS
Gain Bandwidth Product
Unity Gain Bandwidth
Full Power Frequency ➄
Settling Time
10V to ±0.025% ➅
10V to ±0.01% ➅
5V to ±1.0%
5V to ±0.1%
1V to ±1.0%
1V to ±0.1%
Slew Rate ➄
Overshoot
Propagation Delay
Rise Time (10V step)
Overload Recovery Time
OUTPUT
Output Voltage ➂
Output Current ➂
Stable Capacitative Load ➆
POWER REQUIREMENTS
Rated Supply Voltages
Quiescent Current
PHYSICAL/ENVIRONMENTAL
Operating Temp. Range, Case
AM-1435MC
AM-1435ME
AM-1435MM, MM-QL ➇
Storage Temp. Range
Package Type
MIN.
TYP.
MAX.
UNITS
MIN.
—
±7
TYP.
—
±8.5
MAX.
±4
—
UNITS
Volts
Volts
—
73
70
100
—
—
dB
dB
—
—
—
—
—
1 ❘❘ 2
2.5 ❘❘ 2
±20
±0.3
±2
—
—
40
—
±5
MΩ ❘❘ pF
kΩ ❘❘ pF
μA
μA
mV
88
—
—
—
100
±5
±50
±2
—
±25
±100
—
dB
μV/°C
nA/°C
nA/°C
—
—
—
15
1.6
5.2
—
—
—
μVp-p
μVrms
μVrms
—
—
—
—
2.5
2.5
3.5
±0.15
—
—
—
—
nAp-p
nArms
nArms
mV/V
700
—
8
1000
150
10
—
—
—
MHz
MHz
MHz
4. A 1μF bypass capacitor (C4) connected from OPTIONAL BYPASS
CAPACITOR (pin 1) to COMMON (pin 14) may be required to inhibit
output oscillation when driving capacitive loads.
—
—
—
—
—
—
±250
—
—
—
—
60
70
25
40
10
20
±300
1
5
40
50
—
—
—
60
—
—
—
—
—
—
—
ns
ns
ns
ns
ns
ns
V/μs
%
ns
ns
ns
5. To ensure stable operation when the noise gain is less than 10, a 2pF
compensation capacitor (C1) must be connected between pins 3 and 7.
The value of the compensation capacitor may be application sensitive.
±5
±10
—
±7
±14
1000
—
—
—
Volts
mA
pF
±12
—
±15
±22
±16
±30
Volts
mA
Footnotes:
➀ Specified for dc linear operation. Common mode voltage range prior to fault
condition is ±10V maximum.
0
—
+70
°C
–40
—
+100
°C
–55
—
+125
°C
–65
—
+150
°C
14-pin, metal-sealed, ceramic DIP
TECHNICAL NOTES
1. The use of good high-frequency circuit board layout techniques is
required for rated performance. The extensive use of a ground plane
for all common connections is recommended. Lead lengths should be
kept to a minimum with point-to-point connections wired directly to the
amplifier pins. 1μF tantalum bypass capacitors should be used at the
±15V supply pins.
2. Operation of the AM-1435MM and MM-QL over the +85 to +125°C
temperature range requires additional thermal dissipation to achieve
rated performance. Use of an
18°C/W heat sink is recommended.
3. No input protection is provided so as to maximize frequency response.
As a result, several precautions must be observed. Do not apply the
positive supply voltage before the negative supply. Do not apply signals
to either input prior to power-up. If frequency response is not critical,
installation of an external input-protection circuit is recommended.
6. The AM-1435 is a prime choice as a current-to-voltage converter due
to its excellent EOS and IOS temperature coefficient ratings. Input bias
currents are easily compensated by adding a resistor from pin 8 to
ground, which is equal to the parallel combination of the feedback
resistor and input impedance.
ABSOLUTE MAXIMUM RATINGS, ALL MODELS
Positive Supply, Pin 4
+18V
Negative Supply, Pin 12
–18V
Lead Temperature (soldering, 10s)
300°C
➁ Adjustable to zero.
➂ RL = 500Ω.
➃ Referred to input.
➄ C1 = 0.5pF.
➅ C1 = 1pF.
➆ C1 = 3pF, noise gain >2.
➇ Requires 18°C/W heat sink above +85°C.
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
• Tel: (508) 339-3000
•
www.datel.com
•
e-mail: help@datel.com
MDA_AM-1435.C02 Page 2 of 4
AM-1435
Ultra-Fast, Wideband Operational Amplifiers
+15V
R4
1kW
+
C2
1µF
R3
2pF
4
1kW
C1
R1
5
3
–
INPUT
6
7
1kW
OFFSET
ADJUST
(OPT.)
2
AM-1435
OUTPUT
13
R2
1
+
8
500W
14
+
C4 (OPT.)
1µF
12
+
C3
1µF
–15V
Figure 2. Typical Connection Diagram
TYPICAL CONNECTION AND COMPENSATION
The typical connection diagram (above) shows the AM-1435 in a unitygain inverting configuration. When used in any conventional operationalamplifier configuration, the AM-1435 (as a non-inverting amplifier) requires
a noise gain of at least two (noise gain = 1 + R4/R1).
capacitive loads to prevent oscillation of the output stage.
Operation of the AM-1435 at low impedances requires careful attention to
include the feedback resistor as a part of the total output load.
The 2pF compensation capacitor, C1, at pin 3 is required for stable
operation when the noise gain is less than 10. Compensation for bias
current is provided by R2 and its value is determined by the formula:
(R1) x (R4)
R2 =
R4compensation capacitor C4
The offset adjust potentiometer R3 R1
and+the
are optional. Note, however, that C4 should be implemented when driving
100
0°
40°
GAIN
60
60°
40
100°
PHASE ANGLE
20
140°
0
180°
-20
GAIN
100
180°
80
140°
60
100°
40
60°
20
20°
0
PHASE ANGLE (DEGREES)
80
OPEN LOOP VOLTAGE GAIN (dB)
120
PHASE ANGLE (DEGREES)
OPEN LOOP VOLTAGE GAIN (dB)
120
0°
PHASE ANGLE
-20
100 200 500 1k
10k
100k
1M
10M
100M
100 200 500 1k
10k
100k
1M
10M
FREQUENCY (Hz)
FREQUENCY (Hz)
Figure 3. Gain and Phase vs. Frequency
(Uncompensated)
Figure 4. Gain and Phase vs. Frequency
(Compensated 2pF)
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
• Tel: (508) 339-3000
•
www.datel.com
•
100M
e-mail: help@datel.com
MDA_AM-1435.C02 Page 3 of 4
AM-1435
Ultra-Fast, Wideband Operational Amplifiers
PERFORMANCE CHARTS
100
120
110
90
100
80
PSRR (dB)
CMRR (dB)
90
80
70
60
70
60
50
40
50
30
40
20
1k
2k
5k
10k
100k
1M
10M
10
100M
20
50
100
1k
10k
100k
1M
FREQUENCY (Hz)
FREQUENCY (Hz)
Figure 5. CMRR vs. Frequency
Figure 6. PSRR vs. Frequency
MECHANICAL DIMENSIONS - INCHES (mm)
14-PIN DIP
0.805 MAX.
(20.45)
14
8
1
7
0.500 MAX.
(12.70)
Dimension Tolerances (unless otherwise indicated):
2 place decimal (.XX) ±0.010 (±0.254)
3 place decimal (.XXX) ±0.005 (±0.127)
Lead Material: Kovar alloy
Lead Finish: 50 microinches (minimum) gold plating
over 100 microinches (nominal) nickel plating
0.100 TYP.
(2.540)
0.195 MAX.
(4.953)
0.600 ±0.005
(15.240)
0.200 MAX.
(5.080)
0.010 ±0.002
(0.254)
0.160 MAX.
(4.064)
SEATING
PLANE
0.025 ±0.010
(0.635)
0.100
(2.540)
0.100
(2.540)
0.300 ±0.010
(7.620)
0.018 ±0.002
(0.457)
ORDERING INFORMATION: NON-ROHS MODELS
ORDERING INFORMATION: ROHS MODELS
OPERATING
TEMP. RANGE
MODEL NUMBER
AM-1435MC
0 to +70°C
AM-1435MC-C
0 to +70°C
AM-1435ME
–40 to +100°C
AM-1435ME-C
–40 to +100°C
AM-1435MM
–55 to +125°C
AM-1435MM-C
–55 to +125°C
AM-1435MM-QL
–55 to +125°C
AM-1435MM-QL-C
–55 to +125°C
MODEL NUMBER
DATEL is a registered trademark of DATEL, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
OPERATING
TEMP. RANGE
DATEL, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information
contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of
licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice.
ITAR and ISO 9001/14001 REGISTERED
© 2015 DATEL, Inc.
www.datel.com • e-mail: help@datel.com
MDA_AM-1435.C02 Page 4 of 4