MAX4447 Maxim, MAX4447 Datasheet

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MAX4447

Manufacturer Part Number
MAX4447
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:
MAX4447ESE
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 MAX4447

MAX4447 Summary of contents

Page 1

... 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 ...

Page 2

... IN -3.0V ≤ V ≤ 3.0V 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 ±5.5V ...

Page 3

... OUT OUT A PARAMETER SYMBOL Small-Signal -3dB Bandwidth BW Large-Signal -3dB Bandwidth BW Large-Signal -3dB Bandwidth 0.1dB Gain Flatness Slew Rate (Note 2) SR Rise Time (Note 2) t RISE _______________________________________________________________________________________ = +2V/V for MAX4447/MAX4448, A VCL CONDITIONS MAX4447 V = 100mVp-p MAX4448 SS OUT MAX4449 V = 8Vp-p MAX4449 OUT MAX4447 V = 4Vp-p MAX4448 ...

Page 4

... See Figure 1. G Note 2: Input step voltage has <100ps rise (fall) time. Measured at the output from 10% to 90% (90% to 10%) levels. Note 3: Includes the current noise contribution through the on-die feedback resistor. 4 _______________________________________________________________________________________ = +2V/V for MAX4447/MAX4448, A VCL CONDITIONS MAX4447 step ...

Page 5

... FREQUENCY (Hz) MAX4448 LARGE-SIGNAL GAIN vs. FREQUENCY (V = 2Vp-p) OUT 100k 1M 10M 100M FREQUENCY (Hz) = +2V/V for MAX4447/MAX4448, V MAX4449 SMALL-SIGNAL GAIN vs. FREQUENCY (V = 100mVp-p) OUT 100k 1M 10M 100M FREQUENCY (Hz) MAX4449 GAIN FLATNESS vs. FREQUENCY ...

Page 6

... FREQUENCY (Hz) MAX4448 SMALL-SIGNAL PULSE RESPONSE INPUT 50mV/div OUTPUT 100mV/div (5ns/div) MAX4448 LARGE-SIGNAL PULSE RESPONSE INPUT 500mV/div OUTPUT 1V/div (5ns/div) = +2V/V for MAX4447/MAX4448, V MAX4449 SMALL-SIGNAL GAIN vs. FREQUENCY (V = 100mVp-p) OUT 15pF LOAD 5pF LOAD -10 -15 -20 ...

Page 7

... VOLTAGE SWING (f = 5MHz -10 -20 -30 -40 -50 -60 2ND -70 -80 3RD -90 -100 OUTPUT VOLTAGE SWING (V) = +2V/V for MAX4447/MAX4448, V MAX4448 DIFFERENTIAL GAIN AND PHASE 0.002 0.000 -0.002 -0.004 -0.006 100 0 IRE 0.04 0.03 0.02 0.01 0 -0. 100 IRE MAX4448 HARMONIC DISTORTION vs. FREQUENCY (V ...

Page 8

... FREQUENCY (Hz) OUTPUT IMPEDANCE vs. FREQUENCY 100 10 1 0.1 100k 1M 10M 100M FREQUENCY (Hz) SHUTDOWN RESPONSE TIME 0. OUTPUT VOLTAGE 1V/div (50ns/div) = +2V/V for MAX4447/MAX4448, V CURRENT NOISE DENSITY vs. FREQUENCY 100 100 1k 10k 100k 1M FREQUENCY (Hz) DIFFERENTIAL OUTPUT VOLTAGE SWING vs. RESISTIVE LOAD ...

Page 9

... Gain-Set Resistor. Connect gain-setting resistor from RG to GND. Amplifier Noninverting Input Negative Power-Supply Input. Bypass with a 0.1µF capacitor to GND. EE Active-High, TTL-Compatible, Enable Input. Connect to V Connect to GND for low-power operation. Positive Polarity Output Negative Polarity Output Ground = +2V/V for MAX4447/MAX4448, V INPUT BIAS CURRENT vs. TEMPERATURE ...

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

... C = 15pF L Figure 4. Capacitive-Loaded Output Step Response with 14Ω Isolation Resistor Setting Gain The MAX4447/MAX4448/MAX4449 are well-suited to drive twisted-pair cables. The 24AWG telephone wire widely used produces losses at the higher frequencies. Compensate for these losses by increasing the gain slightly. ) GAIN TRANSISTOR COUNT: 291 ...

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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