AM-1435 [DATEL]
Ultra-Fast, Wideband Operational Amplifi ers;
| 型号： | AM-1435 |
| 厂家： | 
DATEL, Inc. |
| 描述： | Ultra-Fast, Wideband Operational Amplifi ers |
| 文件： | 总4页 (文件大小：131K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AM-1435
Ultra-Fast, Wideband Operational Amplifiers
PRODUCT OVERVIEW
DATEL ’s AM-ꢁ435 is an ultrafast settling,
wideband operational amplifierꢀ Utilizing preci-
sion thin-film hybrid construction and differential
input operational amplifier design techniques,
the AM-ꢁ435 achieves a settling time of only 70
nanoseconds for a ꢁ0V step to 0ꢀ0ꢁ1 accuracyꢀ
High-speed performance is optimized with high
open-loop gain, flat frequency response beyond
ꢁ0kHz, and a roll-off of 6dB/octave to beyond
ꢁ00MHzꢀ Typically, gain bandwidth product is ꢁGHz,
and slew rate is 300V/microsecondꢀ
Power supply requirements are ꢁ5V at 30mA
maximum quiescent currentꢀ Models are specified
for operation over the commercial (0 to +70°C),
–40 to +ꢁ00°C and military (–55 to +ꢁ25°C)
temperature rangesꢀ A high-reliability version
manufactured and screened to DATEL ’s QL screen-
ing program is also availableꢀ The package is a
ꢁ4-pin ceramic DIPꢀ
PIN FUNCTION
AM-ꢁ435’s dc characteristics include a dc
ꢁ
OPTIONAL BYPASS CAPACITOR
OUTPUT
open loop gain of ꢁ00dB, ꢁMΩ input impedance,
and an initial input offset voltage of only 2mVꢀ
Input offset voltage drift is typically 5ꢂV/°Cꢀ Also
featured is a minimum common mode rejection
ratio of 80dB and full power frequency of 8MHzꢀ
The AM-ꢁ435 is designed specifically for appli-
cations requiring high accuracy in the amplification
of complex wideband waveformsꢀ Such applica-
tions include radar and sonar signal processing,
video instrumentation, ultrafast A/D and D/A
converters and sample-hold amplifiersꢀ
2
3
COMPENSATION CAPACITOR
+ꢁ5V SUPPLY (+VS)
OFFSET ADJUST
OFFSET ADJUST
–INPUT
4
5
6
7
FEATURES
8
+INPUT
70 nanosecond settling to 0ꢀ0ꢁ1
ꢁGHz gain bandwidth product
ꢁ00dB open loop gain
9
NꢀCꢀ
ꢁ0
ꢁꢁ
ꢁ2
ꢁ3
ꢁ4
NꢀCꢀ
NꢀCꢀ
80dB minimum CMRR
–ꢁ5V SUPPLY (–VS)
OUTPUT CURRENT SINK
COMMON
–55 to +ꢁ25°C operation
Industry standard
FUNCTIONAL BLOCK DIAGRAM
OFFSET
ADJUST
COMPENSATION
CAPACITOR
+15V
SUPPLY
5
6
3
4
1
OPTIONAL
BYPASS CAPACITOR
–INPUT
+INPUT
7
8
2 OUTPUT
+
OUTPUT
13
14
CURRENT SINK
@14mA
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 ꢁ of 4
AM-1435
Ultra-Fast, Wideband Operational Amplifiers
FUNCTIONAL SPECIFICATIONS
(Typical at +25°C and ꢁ5V supplies, unless otherwise notedꢀ)
PHYSICAL/ENVIRONMENTAL
Operating Temp. Range, Case
AM-ꢁ435MC
AM-ꢁ435ME
AM-ꢁ435MM, MM-QL ➇
Storage Temp. Range
Package Type
MIN.
TYP.
MAX.
UNITS
INPUT
MIN.
—
7
TYP.
—
8ꢀ5
MAX.
4
—
UNITS
Volts
Volts
Differential Between Inputs
Common Mode Voltage Range ➀
Common Mode Rejection Ratio
ꢁMHz
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
0ꢀ0ꢁHz to ꢁ0Hz
0
—
—
—
—
+70
+ꢁ00
+ꢁ25
+ꢁ50
°C
°C
°C
°C
–40
–55
–65
—
73
70
ꢁ00
—
—
dB
dB
ꢁ4-pin, metal-sealed, ceramic DIP
—
—
—
—
—
ꢁ ❘❘ 2
2ꢀ5 ❘❘ 2
20
0ꢀ3
2
—
—
40
—
5
MΩ ❘❘ pF
kΩ ❘❘ pF
ꢂA
ꢂA
mV
TECHNICAL NOTES
ꢁꢀ The use of good high-frequency circuit board layout techniques is
required for rated performanceꢀ The extensive use of a ground plane
for all common connections is recommendedꢀ Lead lengths should be
kept to a minimum with point-to-point connections wired directly to the
amplifier pinsꢀ ꢁꢂF tantalum bypass capacitors should be used at the
ꢁ5V supply pinsꢀ
88
—
—
—
ꢁ00
5
50
2
—
25
ꢁ00
—
dB
ꢂV/°C
nA/°C
nA/°C
2ꢀ Operation of the AM-ꢁ435MM and MM-QL over the +85 to +ꢁ25°C
temperature range requires additional thermal dissipation to achieve
rated performanceꢀ Use of an
—
—
—
ꢁ5
ꢁꢀ6
5ꢀ2
—
—
—
ꢂVp-p
ꢂVrms
ꢂVrms
ꢁ00Hz to ꢁ0kHz
ꢁ0Hz to ꢁMHz
ꢁ8°C/W heat sink is recommendedꢀ
Input Current Noise ➃
0ꢀ0ꢁHz to ꢁ0Hz
ꢁ00Hz to ꢁ0kHz
ꢁ0Hz to ꢁMHz
Power Supply Rejection Ratio
DYNAMIC CHARACTERISTICS
Gain Bandwidth Product
Unity Gain Bandwidth
Full Power Frequency ➄
Settling Time
ꢁ0V to 0ꢀ0251 ➅
ꢁ0V to 0ꢀ0ꢁ1 ➅
5V to ꢁꢀ01
5V to 0ꢀꢁ1
ꢁV to ꢁꢀ01
ꢁV to 0ꢀꢁ1
Slew Rate ➄
Overshoot
Propagation Delay
Rise Time (ꢁ0V step)
Overload Recovery Time
OUTPUT
3ꢀ No input protection is provided so as to maximize frequency responseꢀ
As a result, several precautions must be observedꢀ Do not apply the
positive supply voltage before the negative supplyꢀ Do not apply signals
to either input prior to power-upꢀ If frequency response is not critical,
installation of an external input-protection circuit is recommendedꢀ
—
—
—
—
2ꢀ5
2ꢀ5
3ꢀ5
0ꢀꢁ5
—
—
—
—
nAp-p
nArms
nArms
mV/V
700
—
8
ꢁ000
ꢁ50
ꢁ0
—
—
—
MHz
MHz
MHz
4ꢀ A ꢁꢂF bypass capacitor (C4) connected from OPTIONAL BYPASS
CAPACITOR (pin ꢁ) to COMMON (pin ꢁ4) may be required to inhibit
output oscillation when driving capacitive loadsꢀ
5ꢀ To ensure stable operation when the noise gain is less than ꢁ0, a 2pF
compensation capacitor (Cꢁ) must be connected between pins 3 and 7ꢀ
The value of the compensation capacitor may be application sensitiveꢀ
—
—
—
—
—
—
250
—
—
—
—
60
70
25
40
ꢁ0
20
300
ꢁ
—
—
—
60
—
—
—
—
—
—
—
ns
ns
ns
ns
ns
ns
V/ꢂs
1
ns
ns
6ꢀ The AM-ꢁ435 is a prime choice as a current-to-voltage converter due
to its excellent EOS and IOS temperature coefficient ratingsꢀ 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 impedanceꢀ
5
40
50
ns
5
ꢁ0
—
7
ꢁ4
ꢁ000
—
—
—
Volts
mA
pF
Output Voltage ➂
Output Current ➂
Stable Capacitative Load ➆
POWER REQUIREMENTS
Rated Supply Voltages
Quiescent Current
ABSOLUTE MAXIMUM RATINGS, ALL MODELS
ꢁ2
—
ꢁ5
22
ꢁ6
30
Volts
mA
+ꢁ8V
–ꢁ8V
300°C
Positive Supply, Pin 4
Footnotes:
Negative Supply, Pin 12
➀ Specified for dc linear operationꢀ Common mode voltage range prior to fault
condition is ꢁ0V maximumꢀ
Lead Temperature (soldering, 10s)
➁ Adjustable to zeroꢀ
➂ RL = 500Ωꢀ
➃ Referred to inputꢀ
➄ Cꢁ = 0ꢀ5pFꢀ
➅ Cꢁ = ꢁpFꢀ
➆ Cꢁ = 3pF, noise gain >2ꢀ
➇ Requires ꢁ8°C/W heat sink above +85°Cꢀ
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
OFFSET
ADJUST
(OPT.)
2pF
C1
4
1kW
5
AM-1435
14
3
R1
–
INPUT
6
7
1kW
2
OUTPUT
13
R2
1
+
+
8
500W
C4 (OPT.)
1µF
12
+
C3
1µF
–15V
Figure 2. Typical Connection Diagram
TYPICAL CONNECTION AND COMPENSATION
capacitive loads to prevent oscillation of the output stageꢀ
The typical connection diagram (above) shows the AM-ꢁ435 in a unity-
gain inverting configurationꢀ When used in any conventional operational-
amplifier configuration, the AM-ꢁ435 (as a non-inverting amplifier) requires
a noise gain of at least two (noise gain = ꢁ + R4/Rꢁ)ꢀ
Operation of the AM-ꢁ435 at low impedances requires careful attention to
include the feedback resistor as a part of the total output loadꢀ
The 2pF compensation capacitor, Cꢁ, at pin 3 is required for stable
operation when the noise gain is less than ꢁ0ꢀ Compensation for bias
current is provided by R2 and its value is determined by the formula:
(Rꢁ) x (R4)
R2 =
Rꢁ + R4
The offset adjust potentiometer R3 and the compensation capacitor C4
are optionalꢀ Note, however, that C4 should be implemented when driving
120
120
GAIN
100
80
0°
100
80
180°
140°
40°
GAIN
60
40
60°
60
40
100°
100°
140°
60°
20°
PHASE ANGLE
20
0
20
0
180°
0°
PHASE ANGLE
-20
-20
100 200 500 1k
10k
100k
1M
10M
100M
100 200 500 1k
10k
100k
1M
10M
100M
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
•
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
100
90
90
80
80
70
60
70
60
50
40
50
40
30
20
10
20 50 100
1k
10k
100k
1M
1k
2k 5k 10k
100k
1M
10M
100M
FREQUENCY (Hz)
FREQUENCY (Hz)
Figure 5. CMRR vs. Frequency
Figure 6. PSRR vs. Frequency
MECHANICAL DIMENSIONS - INCHES (mm)
0.805 MAX.
(20.45)
14-PIN DIP
Dimension Tolerances (unless otherwise indicated):
2 place decimal (.XX) 0.010 ( 0.254)
14
1
8
7
3 place decimal (.XXX) 0.005 ( 0.127)
0.500 MAX.
(12.70)
Lead Material: Kovar alloy
Lead Finish: 50 microinches (minimum) gold plating
over 100 microinches (nominal) nickel plating
0.100 TYP.
(2.540)
0.600 0.005
(15.240)
0.195 MAX.
(4.953)
0.200 MAX.
(5.080)
0.010 0.002
(0.254)
0.160 MAX.
(4.064)
SEATING
0.100
(2.540)
PLANE
0.025 0.010
(0.635)
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
MODEL NUMBER
OPERATING
MODEL NUMBER
TEMP. RANGE
TEMP. RANGE
AM-ꢁ435MC
AM-ꢁ435ME
0 to +70°C
AM-ꢁ435MC-C
AM-ꢁ435ME-C
0 to +70°C
–40 to +ꢁ00°C
–55 to +ꢁ25°C
–55 to +ꢁ25°C
–40 to +ꢁ00°C
–55 to +ꢁ25°C
–55 to +ꢁ25°C
AM-ꢁ435MM
AM-ꢁ435MM-QL
AM-ꢁ435MM-C
AM-ꢁ435MM-QL-C
DATEL is a registered trademark of DATEL, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
ITAR and ISO 9001/14001 REGISTERED
DATEL, Incꢀ 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 rightsꢀ The descriptions contained herein do not imply the granting of
licenses to make, use, or sell equipment constructed in accordance therewithꢀ Specifications are subject to change without noticeꢀ
© 2015 DATEL, Inc.
www.datel.com • e-mail: help@datel.com
MDA_AM-1435.C02 Page 4 of 4
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