MAX4444 Maxim, MAX4444 Datasheet

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MAX4444

Manufacturer Part Number
MAX4444
Description
The MAX4444/MAX4445 differential line receivers offer unparalleled high-speed, low-distortion performance
Manufacturer
Maxim
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MAX4444ESE
Manufacturer:
MAX
Quantity:
20 000
Part Number:
MAX4444ESE+
Manufacturer:
ON
Quantity:
100
Part Number:
MAX4444ESE+
Manufacturer:
MAXIM/美信
Quantity:
20 000
The MAX4444/MAX4445 differential line receivers offer
unparalleled high-speed, low-distortion performance.
Using a three op amp instrumentation amplifier archi-
tecture, these ICs have symmetrical differential inputs
and a single-ended output. They operate from ±5V
supplies and are capable of driving a 100Ω load to
±3.7V. The MAX4444 has an internally set closed-loop
gain of +2V/V, while the MAX4445 is compensated for
gains of +2V/V or greater, set by an external resistor. A
low-power enable mode reduces current consumption
to 3.5mA.
Using current-feedback techniques, the MAX4444/
MAX4445 achieve a 550MHz bandwidth while maintain-
ing up to a 5000V/µs slew rate. Excellent differential
gain/phase and noise specifications make these ampli-
fiers ideal for a wide variety of video and RF signal-pro-
cessing applications. An evaluation kit is available to
speed design.
19-1543; Rev 0; 10/99
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
SIGNAL
INPUT
Ultra-High-Speed, Low-Distortion, Differential-
Differential-to-Single-Ended Conversion
Twisted-Pair to Coaxial Converter
High-Speed Instrumentation Amplifier
Data Acquisition
Medical Instrumentation
High-Speed Differential Line Receiver
IN+
IN-
GND
MAX4444
to-Single-Ended Line Receivers with Enable
REF
EN
+5V
V
V
-5V
Typical Operating Circuit
CC
EE
________________________________________________________________ Maxim Integrated Products
OUT
0.1 F
0.1 F
General Description
75
Applications
75
OUTPUT
MAX4444ESE
MAX4445ESE
5000V/µs Slew Rate (MAX4444)
+2V/V Internally Fixed Gain (MAX4444)
External Gain Selection
(MAX4445, A
550MHz -3dB Bandwidth
-60dB SFDR at 5MHz
Low Differential Gain/Phase: 0.07%/0.05°
Low Noise: 25nV/ √ Hz at f
Low-Power Disable Mode Reduces Quiescent
Current to 3.5mA
TOP VIEW
( ) ARE FOR MAX4445 ONLY.
PART
N.C. (RG)
N.C. (RG)
VCL
V
V
V
V
IN+
IN-
CC
CC
EE
EE
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
1
2
6
3
4
5
7
8
≥ +2V/V)
Ordering Information
MAX4444
MAX4445
Pin Configuration
SO
IN
= 100kHz
16
15
14
13
12
11
10
9
16 Narrow SO
16 Narrow SO
PIN-PACKAGE
GND
OUT
V
V
V
V
REF
EN
EE
EE
EE
EE
Features
1

Related parts for MAX4444

MAX4444 Summary of contents

Page 1

... ICs have symmetrical differential inputs and a single-ended output. They operate from ±5V supplies and are capable of driving a 100Ω load to ±3.7V. The MAX4444 has an internally set closed-loop gain of +2V/V, while the MAX4445 is compensated for gains of +2V/V or greater, set by an external resistor. A low-power enable mode reduces current consumption to 3 ...

Page 2

... OUT R = 100Ω MAX4445 100Ω 100Ω 50Ω 30Ω ±4.5V to ±5.5V S -2.9V V +2. -3.5V V +3.5V, MAX4444 EN OUT +70° unless otherwise noted. Typical MAX MIN TYP MAX UNITS ± ...

Page 3

... Note 2: Includes the current noise contribution through the on-die feedback resistor. _______________________________________________________________________________________ = +2V/ +25°C, unless otherwise noted.) VCL A CONDITION V = 100mVp-p OUT V = 2Vp-p OUT V = 100mVp-p OUT MAX4444 step OUT MAX4445 MAX4444 step OUT MAX4445 step OUT V = 0.5V step OUT step OUT step OUT step OUT ...

Page 4

... A MAX4444 GAIN FLATNESS vs. FREQUENCY 0 100mVp-p 0.8 OUT 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 -0.1 100k 1M 10M 100M 1G FREQUENCY (Hz) MAX4445 LARGE-SIGNAL GAIN vs. FREQUENCY 2Vp-p OUT 100k 1M 10M 100M 1G FREQUENCY (Hz) MAX4444 LARGE-SIGNAL PULSE RESPONSE INPUT 250mV/div OUTPUT 500mV/div 5ns/div ...

Page 5

... A MAX4444 DIFFERENTIAL GAIN AND PHASE 0.08 0.06 0.04 0.02 0 -0.02 -0.04 -0.06 -0.08 0 100 IRE 0.01 0 -0.01 -0.02 -0.03 -0.04 -0.05 0 100 IRE MAX4444 HARMONIC DISTORTION vs. LOAD RESISTANCE 5MHz 2Vp-p C OUT -10 -20 -30 -40 -50 2nd HARMONIC -60 -70 3rd HARMONIC -80 -90 -100 100 1k 10k LOAD RESISTANCE ( ) MAX4445 HARMONIC DISTORTION vs ...

Page 6

... CAPACITIVE LOAD (pF) = +25°C, unless otherwise noted.) A INPUT CURRENT NOISE DENSITY vs. FREQUENCY 100 100 1k 10k 100k 1M 10M FREQUENCY (Hz) MAX4444 CLOSED-LOOP OUTPUT IMPEDANCE vs. FREQUENCY 1000 100 10 1 -0.1 -0.01 100k 1M 10M 100M 1G FREQUENCY (Hz) INPUT OFFSET VOLTAGE vs. TEMPERATURE 0 -5 -10 -15 -20 -40 ...

Page 7

... INPUT BIAS CURRENT vs. TEMPERATURE -40 -25 - TEMPERATURE ( C) PIN NAME MAX4444 MAX4445 IN — N.C. — IN 11– 11– REF 15 15 ...

Page 8

... Ensure that the ground plane is free from voids. Low-Power Enable Mode The MAX4444/MAX4445 are disabled when EN goes low. This reduces supply current to only 3.5mA. As the output becomes higher impedance, the effective impedance at the output for the MAX4444 is 1.8kΩ. The effective output impedance for the MAX4445 is 1.8kΩ plus R . GAIN Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product ...

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