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.

General Description

The MAX4265–MAX4270 single-supply, voltage-feedback

op amps are capable of driving a 100

Ω load while main-

taining ultra-low distortion over a wide bandwidth. They

offer superior spurious-free dynamic range (SFDR) perfor-

mance: -90dBc or better at frequencies below 5MHz and

-60dBc at a 100MHz frequency. Additionally, input voltage

noise density is 8nV/

√Hz while operating from a single

+4.5V to +8.0V supply or from dual ±2.25V to ±4.0V sup-

plies. These features make the MAX4265–MAX4270 ideal

for use in high-performance communications and signal-

processing applications that require low distortion and

wide bandwidth.

The MAX4265 single and MAX4268 dual unity-gain-stable

amplifiers have up to a 300MHz gain-bandwidth product.

The MAX4266 single and MAX4269 dual amplifiers have

up to a 350MHz bandwidth at a minimum stable gain of

+2V/V. The MAX4267 single and MAX4270 dual amplifiers

have a 200MHz bandwidth at a minimum stable gain of

+5V/V.

For additional power savings, these amplifiers feature a

low-power disable mode that reduces supply current to

1.6mA and places the outputs in a high-impedance state.

The MAX4265/MAX4266/MAX4267 are available in a

space-saving 8-pin µMAX package, and the MAX4268/

MAX4269/MAX4270 are available in a 16-pin QSOP pack-

age.

Applications

Base-Station Amplifiers

IF Amplifiers

High-Frequency ADC Drivers

High-Speed DAC Buffers

RF Telecom Applications

High-Frequency Signal Processing

Features

o +4.5V to +8.0V Single-Supply Operation

o Superior SFDR with 100Ω Load

o 8nV/√Hz Voltage Noise Density

o 100MHz 0.1dB Gain Flatness (MAX4268)

o 900V/µs Slew Rate

o ±45mA Output Driving Capability

o Shutdown Mode Places Outputs in High-

Impedance State

Ultra-Low-Distortion, Single-Supply,

300MHz Op Amps with Enable

________________________________________________________________ Maxim Integrated Products

1

-20

-100

0.1M

10M

100M

-80

-90

-70

-60

-50

-40

-30

FREQUENCY (Hz)

1M

MAX4269

MAX4270

MAX4268

19-1552; Rev 0; 10/99

Selector Guide

SFDR vs. Input Frequency

Ordering Information

*Future product—contact factory for availability.

14 SO

-40°C to +85°C

MAX4270ESD

16 QSOP

14 SO

16 QSOP

14 SO

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

MAX4270EEE

MAX4269ESD

MAX4269EEE

MAX4268ESD

16 QSOP

8 SO

8 µMAX

8 SO

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

MAX4268EEE

MAX4267ESA*

MAX4267EUA*

MAX4266ESA*

8 µMAX

PIN-PACKAGE

TEMP. RANGE

-40°C to +85°C

MAX4266EUA*

PART

200

5

2

MAX4270

350

2

2

MAX4269

300

1

2

MAX4268

200

5

1

MAX4267

350

2

1

MAX4266

300

1

1

MAX4265

BANDWIDTH

(MHz)

MIN GAIN

(V/V)

NO. OF

OP AMPS

PART

8 SO

-40°C to +85°C

MAX4265ESA*

8 µMAX

-40°C to +85°C

MAX4265EUA*

Pin Configurations appear at end of data sheet.