LM6181AIM-8 National Semiconductor, LM6181AIM-8 Datasheet

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LM6181AIM-8

Manufacturer Part Number
LM6181AIM-8
Description
100 mA/ 100 MHz Current Feedback Amplifier
Manufacturer
National Semiconductor
Datasheet

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© 1999 National Semiconductor Corporation
LM6181
100 mA, 100 MHz Current Feedback Amplifier
General Description
The LM6181 current-feedback amplifier offers an unparal-
leled combination of bandwidth, slew-rate, and output cur-
rent. The amplifier can directly drive up to 100 pF capacitive
loads without oscillating and a 10V signal into a 50
back-terminated coax cable system over the full industrial
temperature range. This represents a radical enhancement
in output drive capability for an 8-pin DIP high-speed ampli-
fier making it ideal for video applications.
Built on National’s advanced high-speed VIP
Integrated PNP) process, the LM6181 employs current-
feedback providing bandwidth that does not vary dramati-
cally with gain; 100 MHz at A
With a slew rate of 2000V/µs, 2nd harmonic distortion of −50
dBc at 10 MHz and settling time of 50 ns (0.1%) the LM6181
dynamic performance makes it ideal for data acquisition,
high speed ATE, and precision pulse amplifier applications.
Typical Application
VIP
is a registered trademark of National Semiconductor Corporation.
Cable Driver
V
= −1, 60 MHz at A
DS011328
II (Vertically
V
DS011328-1
or 75
= −10.
Features
(Typical unless otherwise noted)
n Slew rate:
n Settling time (0.1%): 50 ns
n Characterized for supply ranges:
n Low differential gain and phase error: 0.05%, 0.04˚
n High output drive:
n Guaranteed bandwidth and slew rate
n Improved performance over EL2020, OP160, AD844,
Applications
n Coax cable driver
n Video amplifier
n Flash ADC buffer
n High frequency filter
n Scanner and Imaging systems
LT1223 and HA5004
2000 V/µs
±
10V into 100
±
5V and
www.national.com
±
15V
May 1998
DS011328-2

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LM6181AIM-8 Summary of contents

Page 1

... ATE, and precision pulse amplifier applications. Typical Application Cable Driver VIP ™ registered trademark of National Semiconductor Corporation. © 1999 National Semiconductor Corporation DS011328 Features (Typical unless otherwise noted) n Slew rate: 2000 V/µs n Settling time (0 ...

Page 2

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage Differential Input Voltage Input Voltage Inverting Input Current Soldering Information Dual-In-Line Package (N) Soldering (10 sec) Small Outline Package (M) Vapor Phase (60 seconds) ...

Page 3

DC Electrical Characteristics The following specifications apply for Supply Voltage = limits apply at the temperature extremes; all other limits T Symbol Parameter Z Transimpedance Supply Current No Load ...

Page 4

DC Electrical Characteristics The following specifications apply for Supply Voltage = limits apply at the temperature extremes; all other limits T Symbol Parameter V Input Offset Voltage OS TC Input Offset Voltage Drift Inverting Input ...

Page 5

AC Electrical Characteristics The following specifications apply for Supply Voltage = limits apply at the temperature extremes; all other limits T Symbol Parameter = +2 BW Closed Loop Bandwidth − + ...

Page 6

Typical Performance Characteristics CLOSED-LOOP FREQUENCY RESPONSE = ± = 820 ; V 15V DS011328-34 UNIT GAIN FREQUENCY RESPONSE = ± = + 820 R f DS011328-37 ...

Page 7

Typical Performance Characteristics NON-INVERTING GAIN FREQUENCY RESPONSE = ± = + 820 R f DS011328-43 NON-INVERTING GAIN FREQUENCY RESPONSE = ± = +10; V 15V 820 R f DS011328-46 BANDWIDTH ...

Page 8

Typical Performance Characteristics TRANSIMPEDANCE vs FREQUENCY = ± V 15V S = 100 R L DS011328-52 SETTLING RESPONSE ± 150 ; V 15V ± = − DS011328-55 SUGGESTED R ...

Page 9

Typical Performance Characteristics OUTPUT IMPEDANCE vs FREQ = ± = −1 V 15V 820 R f DS011328-61 − PSRR ( FREQUENCY S DS011328-64 INPUT CURRENT NOISE vs FREQUENCY DS011328-67 = 25˚C unless otherwise noted ...

Page 10

Typical Performance Characteristics −3 dB BANDWIDTH vs TEMPERATURE = − DS011328-70 SMALL SIGNAL PULSE RESPONSE vs TEMP ± 5V DS011328-73 SMALL SIGNAL PULSE RESPONSE vs TEMP, ...

Page 11

Typical Performance Characteristics SMALL SIGNAL PULSE RESPONSE vs TEMP ± 15V DS011328-79 SMALL SIGNAL PULSE RESPONSE vs TEMP ± = 100 V 5V; ...

Page 12

Typical Performance Characteristics SMALL SIGNAL PULSE RESPONSE vs TEMP ± = 100 V 15V DS011328-88 OFFSET VOLTAGE vs TEMPERATURE DS011328-91 TRANSIMPEDANCE vs TEMPERATURE DS011328-94 www.national.com = 25˚C unless otherwise noted (Continued) T ...

Page 13

Typical Performance Characteristics CMRR vs TEMPERATURE DS011328-97 PSR I B(+) vs TEMPERATURE DS011328-A0 CMR I vs TEMPERATURE B(−) DS011328-A3 = 25˚C unless otherwise noted (Continued NON-INVERTING BIAS CURRENT vs TEMPERATURE DS011328-98 PSR I vs TEMPERATURE B(−) DS011328-A1 I ...

Page 14

Typical Performance Characteristics Absolute Maximum Power Derating Curves = Thermal Resistance with 2 square inches of 1 ounce Copper tied to Pins and 16 www.national.com DS011328-30 N-Package DS011328-31 M-Package DS011328-33 M-8 Package 14 ...

Page 15

Typical Performance Characteristics (Continued) Simplified Schematic 15 DS011328-32 www.national.com ...

Page 16

Typical Applications CURRENT FEEDBACK TOPOLOGY For a conventional voltage feedback amplifier the resulting small-signal bandwidth is inversely proportional to the de- sired gain to a first order approximation based on the gain-bandwidth concept. In contrast, the current feedback amplifier topology, ...

Page 17

Typical Applications (Continued) = 820 3a 1640 3b FIGURE 3. Increasing Compensation with Increasing R f FIGURE 4. Reducing R for Large f = 500 Closed Loop Gains SLEW RATE CONSIDERATIONS The slew ...

Page 18

Typical Applications (Continued FIGURE 6. Resistive Isolation of C Provides Higher Fidelity Pulse Response. R and R Could Be Increased to Maintain A S and Improve Pulse Response Characteristics. CAPACITIVE FEEDBACK For voltage feedback amplifiers it is quite ...

Page 19

Typical Performance Characteristics (Continued) DS011328-24 FIGURE 8. FIGURE 9. Open-Loop Overdrive Recovery Time of 5 ns, and 25 ns from Test Circuit in Figure 8 The large closed-loop gain configuration in Figure 10 forces the amplifier output into overdrive. Figure ...

Page 20

... Connection Diagrams (For Ordering Information See Back Page) 8–Pin Dual-In-Line Package (N)/ Small Outline (M-8) Order Number LM6181IN, LM6181AIN, LM6181AMN, LM6181AIM-8, LM6181IM-8 or LM6181AMJ/883 See NS Package Number J08A, M08A or N08E Ordering Information Package 8-Pin Molded DIP 8-Pin Small Outline Molded Package 16-Pin Small Outline ...

Page 21

... Physical Dimensions inches (millimeters) unless otherwise noted 8-Lead (0.150" Wide) Small Outline Molded Package (M-8) Order Number LM6181AIM-8 or LM6181IM-8 NS Package Number M08A 8-Pin Ceramic Dual-In-Line Package Order Number LM6181AMJ/883 NS Package Number J08A 21 www.national.com ...

Page 22

... Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Order Number LM6181AIN, LM6181IN or LM6181AMN www.national.com Small Outline Package (M) Order Number LM6181IM or LM6181AIM NS Package Number M16A Dual-In-Line-Package (N) NS Package Number N08E 22 ...

Page 23

... National Semiconductor Asia Pacific Customer Fax: +49 (0) 1 80-530 85 86 Response Group Email: europe.support@nsc.com Tel: 65-2544466 Fax: 65-2504466 Tel: +49 (0) 1 80-532 78 32 Email: sea.support@nsc.com Tel: +49 (0) 1 80-534 16 80 National Semiconductor Japan Ltd. Tel: 81-3-5639-7560 Fax: 81-3-5639-7507 ...

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