Single/Triple, Low-Glitch, 250MHz, Current Feedback Amplifiers with High-Speed Disable

Overview

Technical Documents

Ordering Info

User Comments (0)

All

Status

All versions are No Longer Available.

Description

The MAX4188/MAX4189/MAX4190 are low-power, current-feedback video amplifiers featuring fast disable/ 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 optimized for closed-loop applications with gains of +1V/V (0dB) or greater and provides a 250MHz -3dB bandwidth. 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 generalpurpose, 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.

Data Sheet

Download	Rev 1	(PDF, 784kB)
E-Mail

Key Features

Low Supply Current: 1.5mA per Amplifier
Fast Enable/Disable Times: 120ns/35ns
Very Low Switching Transient: 45mV_p-p
High Speed
- 200MHz -3dB Small-Signal Bandwidth (MAX4188, A_VCL ≥ +2)
- 250MHz -3dB Small-Signal Bandwidth (MAX4189, A_VCL ≥ +1)
- 185MHz -3dB Small-Signal Bandwidth (MAX4190, A_VCL ≥ +2)
High Slew Rate
- 350V/µs (MAX4188, A_VCL ≥ +2)
- 175V/µs (MAX4189, A_VCL ≥ +1)
Excellent Video Specifications
- 85MHz -0.1dB Gain Flatness (MAX4190)
- 30MHz -0.1dB Gain Flatness (MAX4189)
- Differential Gain/Phase Errors 0.03%/0.05° (MAX4188)
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 (f_c = 5MHz, V_O = 2V_p-p, MAX4188)
Available in Space-Saving Packages
- 16-Pin QSOP (MAX4188/MAX4189)
- 8-Pin µMAX (MAX4190)

Applications/Uses

High-Definition Surveillance Video
High-Speed Analog-to-Digital Buffers
High-Speed Signal Processing
High-Speed Switching/Multiplexing
Portable Battery-Powered Video/Multimedia Systems
RGB Distribution Amplifiers

Diagram

Pin Configuration

Notes and Comments

Triple, low-glitch, current-feedback amplifier with high-speed disable (MAX4188)
Triple, low-glitch, current-feedback amplifier with high-speed disable (MAX4189)
Single, low-glitch, current-feedback amplifier with high-speed disable (MAX4190)

Didn't Find What You Need?

Next Day Product Selection Assistance from Applications Engineers
Parametric Search
Applications Help

Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-1369 Rev 1; 2007-03-21
This page last modified: 2009-11-05