MAX4223 Maxim, MAX4223 Datasheet

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MAX4223

Manufacturer Part Number
MAX4223
Description
The MAX4223-MAX4228 current-feedback amplifiers combine ultra-high-speed performance, low distortion, and excellent video specifications with low-power operation
Manufacturer
Maxim
Datasheet

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The MAX4223–MAX4228 current-feedback amplifiers
combine ultra-high-speed performance, low distortion,
and excellent video specifications with low-power oper-
ation. The MAX4223/MAX4224/MAX4226/MAX4228
have a shutdown feature that reduces power-supply
current to 350µA and places the outputs into a high-
impedance state. These devices operate with dual sup-
plies ranging from ±2.85V to ±5.5V and provide a
typical output drive current of 80mA. The MAX4223/
MAX4225/MAX4226 are optimized for a closed-loop
gain of +1 (0dB) or more and have a -3dB bandwidth of
1GHz, while the MAX4224/MAX4227/MAX4228 are
compensated for a closed-loop gain of +2 (6dB) or
more, and have a -3dB bandwidth of 600MHz (1.2GHz
gain-bandwidth product).
The MAX4223–MAX4228 are ideal for professional video
applications, with differential gain and phase errors of
0.01% and 0.02°, 0.1dB gain flatness of 300MHz, and a
1100V/µs slew rate. Total harmonic distortion (THD) of
-60dBc (10MHz) and an 8ns settling time to 0.1% suit
these devices for driving high-speed analog-to-digital
inputs or for data-communications applications. The low-
power shutdown mode on the MAX4223/MAX4224/
MAX4226/MAX4228 makes them suitable for portable
and battery-powered applications. Their high output
impedance in shutdown mode is excellent for multiplex-
ing applications.
The single MAX4223/MAX4224 are available in space-
saving 6-pin SOT23 packages. All devices are available
in the extended -40°C to +85°C temperature range.
________________________Applications
19-1230; Rev 2a; 6/97
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
For small orders, phone 408-737-7600 ext. 3468.
Pin Configurations
continued at end
of data sheet.
_________________Pin Configurations
_______________General Description
ADC Input Buffers
Video Cameras
Video Switches
Video Editors
RF Receivers
TOP VIEW
Current-Feedback Amplifiers with Shutdown
OUT
V
IN+
EE
________________________________________________________________ Maxim Integrated Products
1
2
3
SOT23-6
Data Communications
Video Line Drivers
Video Multiplexing
XDSL Drivers
Differential Line Drivers
6
5
4
V
SHDN
IN-
CC
MAX4223
MAX4224
1GHz, Low-Power, SOT23,
Ordering Information continued at end of data sheet.
____________________________Features
_____________________Selector Guide
______________Ordering Information
MAX4223EUT-T
MAX4223ESA
MAX4223
MAX4224
MAX4225
MAX4226
MAX4227
MAX4228
Ultra-High Speed and Fast Settling Time:
Excellent Video Specifications (MAX4223):
Low Distortion:
6.0mA Quiescent Supply Current (per amplifier)
Shutdown Mode:
High Output Drive Capability:
Available in Tiny 6-Pin SOT23 and 10-Pin µMAX
Packages
PART
1GHz -3dB Bandwidth (MAX4223, Gain = +1)
600MHz -3dB Bandwidth (MAX4224, Gain = +2)
1700V/µs Slew Rate (MAX4224)
5ns Settling Time to 0.1% (MAX4224)
Gain Flatness of 0.1dB to 300MHz
0.01%/0.02° DG/DP Errors
-60dBc THD (f
42dBm Third-Order Intercept (f = 30MHz)
350µA Supply Current (per amplifier)
100kΩ Output Impedance
80mA Output Current
Drives up to 4 Back-Terminated 75Ω Loads to
±2.5V while Maintaining Excellent Differential
Gain/Phase Characteristics
PART
GAIN
MIN.
1
2
1
1
2
2
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
c
= 10MHz)
AMPS
PKG.
PER
1
1
2
2
2
2
DOWN
SHUT-
MODE
PACKAGE
Yes
Yes
Yes
Yes
6 SOT23
8 SO
No
No
PIN-
6 SOT23, 8 SO
6 SOT23, 8 SO
PACKAGE
10 µMAX,
10 µMAX,
TOP MARK
14 SO
14 SO
8 SO
8 SO
PIN-
AAAD
SOT
1

Related parts for MAX4223

MAX4223 Summary of contents

Page 1

... These devices operate with dual sup- plies ranging from ±2.85V to ±5.5V and provide a typical output drive current of 80mA. The MAX4223/ MAX4225/MAX4226 are optimized for a closed-loop gain of +1 (0dB) or more and have a -3dB bandwidth of ...

Page 2

... MIN MAX MAX4225–MAX4228 +25° MIN MAX MAX4223/MAX4224 T = +25°C A MAX4225–MAX4228 MAX4223/MAX4224 MIN MAX MAX4225–MAX4228 Inferred from CMRR test T = +25° ±2. MIN Inferred from PSRR test +25° ...

Page 3

... MAX4224/7 2Vp-p LS OUT Rising edge step OUT Falling edge step S OUT , step r f OUT SHDN = 0V 10MHz, MAX4223/4/6 30MHz 50Ω S MAX4223/4/6/8 ON MAX4223/4/6 ±5V step 150Ω (Note 150Ω (Note 100Ω ...

Page 4

... R = 560 SOT23 470 100 1000 FREQUENCY (MHz) 4 _______________________________________________________________________________________ = 0V +1V/V for MAX4223/MAX4225/MAX4226 CONDITIONS f = 10kHz MAX4223/5 30kHz 30.1MHz MAX4224/7/8 MAX4223/5 10kHz MAX4224/7 10kHz f = 10kHz IN 10kHz n IN- Pin to pin SO-8, SO-14 packages Pin to GND Pin to pin SOT23-6, 10-pin µMAX ...

Page 5

Current-Feedback Amplifiers with Shutdown ____________________________Typical Operating Characteristics (continued +5V -5V 100Ω MAX4224 SMALL-SIGNAL GAIN vs. FREQUENCY (A = +2) VCL 20mVp ...

Page 6

... FREQUENCY (MHz) OUTPUT IMPEDANCE vs. FREQUENCY 100 10 MAX4223/5 +1V/V VCL R = 560 F 1 MAX4224/7 +2V/V 0.1 VCL 470 G F 0.01 0.01 0 100 FREQUENCY (MHz) MAX4223/MAX4225/MAX4226 TOTAL HARMONIC DISTORTION vs. FREQUENCY ( - +1V/V VCL - 560 2Vp-p -50 OUT THD -60 -70 3RD HARMONIC 2ND HARMONIC -80 -90 -100 0.1 ...

Page 7

... TIME (10ns/div) MAX4223/MAX4225/MAX4226 LARGE-SIGNAL PULSE RESPONSE ( 25pF) VCL L MAX4223-26 +2V GND INPUT -2V +2V GND OUTPUT -2V TIME (10ns/div) MAX4224/MAX4227/MAX4228 LARGE-SIGNAL PULSE RESPONSE (A = +5) VCL MAX4223-29 +400mV INPUT GND -400mV +2V GND OUTPUT -2V TIME (10ns/div) MAX4223-24 GND GND MAX4223-27 GND GND MAX4223-30 GND GND 7 ...

Page 8

Low-Power, SOT23, Current-Feedback Amplifiers with Shutdown ____________________________Typical Operating Characteristics (continued +5V -5V 100Ω +25°C, unless otherwise noted POWER-SUPPLY CURRENT PER AMPLIFIER vs. TEMPERATURE 8 7 NORMAL 6 ...

Page 9

... Current-Feedback Amplifiers with Shutdown ______________________________________________________________Pin Description MAX4225 MAX4223/MAX4224 MAX4227 SOT23 SO — — — — — — — — — — — — — — — — — _______________________________________________________________________________________ 1GHz, Low-Power, SOT23, PIN MAX4226/MAX4228 SO µMAX SO — ...

Page 10

... Information Layout and Power-Supply Bypassing >> [(G Z The MAX4223–MAX4228 have an extremely high band- width, and consequently require careful board layout, including the possible use of constant-impedance R F microstrip or stripline techniques. ...

Page 11

... Table 1. Optimal Feedback Resistor Networks GAIN GAIN (V/V) (dB) MAX4223/MAX4225/MAX4226 MAX4224/MAX4227/MAX4228 For the MAX4223EUT, this optimal value is 470 Ω combines with ’s value F ’s value reduces F ) for the MAX4223– Use 1% resistors to maintain F -3dB 0.1dB (Ω ...

Page 12

... Higher third-order intercept points correspond to better lineari the amplifier. The MAX4223–MAX4228 have a typi- cal IP3 value of 42dBm, making them excellent choices for use in communications systems. Input buffer amplifiers can be a source of significant errors in high-speed ADC applications ...

Page 13

... The combination of high speed, fast slew rate, low noise, and low distortion makes the MAX4223–MAX4228 ideally suited for use as buffer amplifiers in high-speed ADC applications. Video Line Driver The MAX4223–MAX4228 are optimized to drive coaxial transmission lines when the cable is terminated at both ends, as shown in Figure 3 ...

Page 14

... Layout and Power-Supply Bypassing section). 50 100 UNITS 40 SIMULATION 30 LOWER LIMIT ±0.1dB BANDWIDTH (MHz) Figure 5b. MAX4223 ±0.1dB Bandwidth Distribution 50 100 UNITS 40 SIMULATION 30 LOWER LIMIT FALLING-EDGE SLEW RATE (V/ s) Figure 5d. MAX4223 Falling-Edge Slew-Rate Distribution ...

Page 15

Current-Feedback Amplifiers with Shutdown 50 100 UNITS 40 SIMULATION 30 LOWER LIMIT -3dB BANDWIDTH (MHz) Figure 6a. MAX4224 -3dB Bandwidth Distribution 50 100 UNITS 40 SIMULATION 30 LOWER LIMIT RISING-EDGE SLEW RATE (V/ s) ...

Page 16

... Low-Power, SOT23, Current-Feedback Amplifiers with Shutdown Figure 7a. Maxim SOT23 High-Speed Evaluation Board Component Placement Guide—Component Side Figure 7b. Maxim SOT23 High-Speed Evaluation Board PC Board Layout—Component Side 16 ______________________________________________________________________________________ Figure 7c. Maxim SOT23 High-Speed Evaluation Board PC Board Layout—Back Side ...

Page 17

... Current-Feedback Amplifiers with Shutdown Figure 8a. Maxim SO-8 High-Speed Evaluation Board Component Placement Guide—Component Side Figure 8b. Maxim SO-8 High-Speed Evaluation Board PC Board Layout—Component Side ______________________________________________________________________________________ 1GHz, Low-Power, SOT23, Figure 8c. Maxim SO-8 High-Speed Evaluation Board PC Board Layout—Back Side 17 ...

Page 18

... Low-Power, SOT23, Current-Feedback Amplifiers with Shutdown _____________________________________________Pin Configurations (continued) TOP VIEW MAX4223 MAX4224 N. MAX4226 MAX4228 OUTA 1 2 INA- INA SHDNA MAX 18 ______________________________________________________________________________________ 8 SHDN OUTA OUT 5 N.C. 10 OUTA OUTB 8 INB- 7 INB+ 6 SHDNB ...

Page 19

... SO MAX4228EUB -40°C to +85°C 10 µMAX MAX4228ESD -40°C to +85° ______________________________________________________________________________________ 1GHz, Low-Power, SOT23, ___________________Chip Information PIN- SOT MAX4223/MAX4224 TRANSISTOR COUNT: 87 TOP MARK MAX4225–MAX4228 TRANSISTOR COUNT: 171 AAAE SUBSTRATE CONNECTED TO V — — — — — — — EE ...

Page 20

... Low-Power, SOT23, Current-Feedback Amplifiers with Shutdown ________________________________________________________Package Information Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 20 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © ...

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