19-1369; Rev 1; 2/07
Single/Triple, Low-Glitch, 250MHz, Current-
Feedback Amplifiers with High-Speed Disable
The MAX4188/MAX4189/MAX4190 are low-power,
current-feedback video amplifiers featuring fast dis-
able/enable times and low switching transients. The
triple MAX4188 and the single MAX4190 are optimized
for applications with closed-loop gains of +2V/V (6dB)
or greater and provide a -3dB bandwidth of 200MHz
and 185MHz, respectively. The triple MAX4189 is opti-
mized for closed-loop applications with gains of +1V/V
(0dB) or greater and provides a 250MHz -3dB band-
width. These amplifiers feature 0.1dB gain flatness up to
80MHz with differential gain and phase errors of 0.03%
and 0.05°. These features make the MAX4188 family
ideal for video applications.
The MAX4188/MAX4189/MAX4190 operate from a +5V
single supply or from ±2.25V to ±5.5V dual supplies.
These amplifiers consume only 1.5mA per amplifier and
are capable of delivering ±55mA of output current, making
them ideal for portable and battery-powered equipment.
The MAX4188/MAX4189/MAX4190 have a high-speed
disable/enable mode that isolates the inputs, places the
outputs in a high-impedance state, and reduces the
supply current to 450µA per amplifier. Each amplifier
can be disabled independently. High off isolation, low
switching transient, and fast enable/disable times
(120ns/35ns) allow these amplifiers to be used in a
wide range of multiplexer applications. A settling time
of 22ns to 0.1%, a slew rate of up to 350V/µs, and low
distortion make these devices useful in many general-
purpose, high-speed applications.
The MAX4188/MAX4189 are available in a tiny 16-pin
QSOP package, and the MAX4190 is available in a
space-saving 8-pin µMAX® package.
High-Definition Surveillance Video
High-Speed Analog-to-Digital Buffers
High-Speed Signal Processing
CCD Imaging Systems
RGB Distribution Amplifiers
Pin Configuration appears at end of data sheet.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
♦ Low Supply Current: 1.5mA per Amplifier
♦ Fast Enable/Disable Times: 120ns/35ns
♦ Very Low Switching Transient: 45mVp-p
♦ High Speed
200MHz -3dB Small-Signal Bandwidth
(MAX4188, AVCL ≥ +2)
250MHz -3dB Small-Signal Bandwidth
(MAX4189, AVCL ≥ +1)
185MHz -3dB Small-Signal Bandwidth
(MAX4190, AVCL ≥ +2)
♦ High Slew Rate
350V/µs (MAX4188, AVCL ≥ +2)
175V/µs (MAX4189, AVCL ≥ +1)
♦ Excellent Video Specifications
85MHz -0.1dB Gain Flatness (MAX4190)
30MHz -0.1dB Gain Flatness (MAX4189)
Differential Gain/Phase Errors
♦ Low-Power Disable Mode
Inputs Isolated, Outputs Placed in High-Z
Supply Current Reduced to 450µA per Amplifier
♦ Fast Settling Time of 22ns to 0.1%
♦ Low Distortion
70dB SFDR (fc = 5MHz, VO = 2Vp-p, MAX4188)
♦ Available in Space-Saving Packages
16-Pin QSOP (MAX4188/MAX4189)
8-Pin µMAX (MAX4190)
MAX4188ESD+ -40°C to +85°C 14 SO
MAX4188EEE+ -40°C to +85°C 16 QSOP
Ordering Information continued at end of data sheet.
+Denotes lead-free package.
MAX4188 AV ≥ +2V/V
MAX4189 AV ≥ +1V/V
MAX4190 AV ≥ +2V/V
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.