MAX4449 Maxim, MAX4449 Datasheet

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MAX4449

Manufacturer Part Number
MAX4449
Description
The MAX4447/MAX4448/MAX4449 single-ended-to-differential line drivers are designed for high-speed communications
Manufacturer
Maxim
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MAX4449ESE
Manufacturer:
MAXIM/美信
Quantity:
20 000
19-1519 Rev 1; 10/99
The MAX4447/MAX4448/MAX4449 single-ended-to-
differential line drivers are designed for high-speed
communications. Using current feedback for greater
bandwidth, these devices deliver full-power bandwidths
up to 405MHz and feature slew rates as high as
6500V/µs. The MAX4447 has a fixed gain of +2V/V and
a small-signal bandwidth of 430MHz. The MAX4448/
MAX4449 have small-signal bandwidths of 330MHz
and 400MHz, respectively, and are internally compen-
sated for minimum gain configurations of +2V/V and
+5V/V, respectively. For greater design flexibility, the
MAX4448/MAX4449 allow for variable gain selection
using external gain-setting resistors. A low-power
enable mode reduces current consumption below 5.5mA
and places the outputs in a high-impedance state.
The MAX4447/MAX4448/MAX4449 can deliver differen-
tial output swings of ±6.2V from ±5V supplies with a
50Ω load. Excellent differential gain/phase and noise
specifications make these amplifiers ideal for a wide
variety of video and RF signal-processing and transmis-
sion applications.
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
6500V/µs, Wideband, High-Output-Current, Single-
Differential Line Driver
Single-Ended-to-Differential Conversion
High-Speed Differential Transmitter
Coaxial to Twisted-Pair Converter
Differential Pulse Amplifier
Differential ADC Driver
xDSL Applications
Video and RF Signal Processing and Transmission
( ) ARE FOR MAX4448/MAX4449 ONLY
TOP VIEW
Ended-to-Differential Line Drivers with Enable
N.C. (RG)
N.C.
N.C.
V
V
V
V
CC
CC
IN
EE
EE
________________________________________________________________ Maxim Integrated Products
1
2
6
3
4
5
7
8
General Description
MAX4447
MAX4448
MAX4449
SO
Pin Configuration
Applications
16
15
14
13
12
11
10
9
GND
OUT-
V
V
V
V
OUT+
EN
EE
EE
EE
EE
o 6500V/µs Slew Rate (MAX4449)
o Small-Signal Bandwidth
o 200MHz 0.1dB Gain Flatness (MAX4447)
o 130mA Output Drive Current
o +2V/V Internally Fixed Gain (MAX4447)
o External Gain Selection
o -78dB SFDR at 100kHz
o Low Differential Gain/Phase: 0.01%/0.02°
o Ultra-Low Noise: 23nV/√Hz at f
o 8ns Settling Time to 0.1%
MAX4447ESE
MAX4448ESE
MAX4449ESE
INPUT
430MHz (MAX4447)
330MHz (MAX4448)
400MHz (MAX4449)
≥ +2V/V (MAX4448)
≥ +5V/V (MAX4449)
PART
75Ω
0.1µF
75Ω
Typical Operating Circuit
GND
V
IN
+5V
CC
MAX4447
0.1µF
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
V
Ordering Information
EE
-5V
EN
OUT+
OUT-
R
T
R
T
IN
= 1MHz
16 Narrow SO
16 Narrow SO
16 Narrow SO
PIN-PACKAGE
75Ω
Features
75Ω
TO
LOAD
1

Related parts for MAX4449

MAX4449 Summary of contents

Page 1

... ARE FOR MAX4448/MAX4449 ONLY ________________________________________________________________ Maxim Integrated Products For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. o 6500V/µs Slew Rate (MAX4449) o Small-Signal Bandwidth 430MHz (MAX4447) 330MHz (MAX4448) 400MHz (MAX4449) o 200MHz 0 ...

Page 2

... IN MAX4447 -6V ≤ V ≤ 6V OUT MAX4448/MAX4449 (Note 1) MAX4447 -6V ≤ V ≤ 6V OUT MAX4448/MAX4449 MAX4447 OUT MAX4448/MAX4449 R = 100Ω between OUT+ and OUT 50Ω between OUT+ and OUT 20Ω between OUT+ and OUT- L Short circuit to GND V = ±4.5V to ±5. ...

Page 3

... OUT MAX4449 MAX4447 step MAX4448 OUT MAX4449 MAX4447 step MAX4448 OUT MAX4449 MAX4447 step MAX4448 OUT MAX4449 = +5V/V for MAX4449, VCL MIN TYP MAX UNITS 430 330 MHz 400 250 250 260 320 MHz 285 310 405 200 40 MHz ...

Page 4

... V = 1V, V settle to within 1% IN OUT V = 1V, V settle to within 1% IN OUT V = 1V, V settle to within 1% IN OUT V = 1V, V settle to within 1% IN OUT = +5V/V for MAX4449, VCL MIN TYP MAX UNITS 1100 900 900 900 810 ps 780 800 770 660 8 ns -78 -78 dBc ...

Page 5

... Wideband, High-Output-Current, Single- Ended-to-Differential Line Drivers with Enable (V = +5V -5V +5V OUT A = +5V/V for MAX4449 +25°C, unless otherwise noted MAX4447 SMALL-SIGNAL GAIN vs. FREQUENCY (V = 100mVp-p) OUT 100k 1M 10M 100M FREQUENCY (Hz) MAX4447 GAIN FLATNESS vs ...

Page 6

... Wideband, High-Output-Current, Single- Ended-to-Differential Line Drivers with Enable (V = +5V -5V +5V OUT A = +5V/V for MAX4449 +25°C, unless otherwise noted MAX4447 SMALL-SIGNAL GAIN vs. FREQUENCY (V = 100mVp-p) OUT 15pF LOAD 5pF LOAD -10 -15 -20 -25 ...

Page 7

... Wideband, High-Output-Current, Single- Ended-to-Differential Line Drivers with Enable (V = +5V -5V +5V OUT A = +5V/V for MAX4449 +25°C, unless otherwise noted SLEW RATE vs. OUTPUT VOLTAGE 7000 MAX4449 6000 MAX4447 5000 MAX4448 4000 3000 2000 1000 ...

Page 8

... Wideband, High-Output-Current, Single- Ended-to-Differential Line Drivers with Enable (V = +5V -5V +5V OUT A = +5V/V for MAX4449 +25°C, unless otherwise noted MAX4449 HARMONIC DISTORTION vs. OUTPUT VOLTAGE SWING (f = 5MHz -10 -20 -30 -40 -50 2ND -60 3RD -70 -80 -90 -100 ...

Page 9

... Wideband, High-Output-Current, Single- Ended-to-Differential Line Drivers with Enable (V = +5V -5V +5V OUT A = +5V/V for MAX4449 +25°C, unless otherwise noted QUIESCENT CURRENT vs. TEMPERATURE GND 0 -40 - TEMPERATURE (°C) PIN NAME MAX4448 MAX4447 ...

Page 10

... Applications Information Grounding and Bypassing Use high-frequency design techniques when designing the PC board for the MAX4447/MAX4448/MAX4449: • Use a multilayer board with one layer dedicated as the ground plane. • Do not wire-wrap or use breadboards, due to high inductance. • Avoid IC sockets, due to high parasitic capacitance and inductance. • ...

Page 11

... Ended-to-Differential Line Drivers with Enable IN 500mV/div OUT 1V/div Figure 3. Capacitive-Loaded Output Step Response Without Isolation Resistor The MAX4448/MAX4449 are stable with minimum gain of +2V/V and +5V/V, respectively. An external resistor connected between RG and GND sets the gain GAIN of these devices. Calculate the gain as follows: Gain = 300 / R for the MAX4449 must be ≤ ...

Page 12

... Ended-to-Differential Line Drivers with Enable Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product ...

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