19-1552; Rev 0; 10/99
Ultra-Low-Distortion, Single-Supply,
300MHz Op Amps with Enable
General Description
The MAX4265–MAX4270 single-supply, voltage-feedback
op amps are capable of driving a 100Ω 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.
o
Superior SFDR with 100Ω Load
-90dBc (f
C
= 5MHz )
-60dBc (f
C
= 100MHz)
o
35dBm IP3 (f
C
= 20MHz)
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
Features
o
+4.5V to +8.0V Single-Supply Operation
MAX4265–MAX4270
Ordering Information
PART
MAX4265EUA*
MAX4265ESA*
MAX4266EUA*
MAX4266ESA*
MAX4267EUA*
MAX4267ESA*
MAX4268EEE
MAX4268ESD
MAX4269EEE
MAX4269ESD
MAX4270EEE
MAX4270ESD
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 µMAX
8 SO
8 µMAX
8 SO
8 µMAX
8 SO
16 QSOP
14 SO
16 QSOP
14 SO
16 QSOP
14 SO
Applications
Base-Station Amplifiers
IF Amplifiers
High-Frequency ADC Drivers
High-Speed DAC Buffers
RF Telecom Applications
High-Frequency Signal Processing
Pin Configurations appear at end of data sheet.
*Future product—contact factory for availability.
SFDR vs. Input Frequency
V
OUT
= 1Vp-p
R
L
= 100Ω to V
CC
/2
MAX4268/70 toc10
-20
-30
-40
SFDR (dBc)
-50
-60
-70
-80
-90
-100
0.1M
1M
10M
MAX4269
MAX4270
Selector Guide
PART
MAX4265
MAX4266
MAX4267
MAX4268
MAX4269
MAX4270
NO. OF
OP AMPS
1
1
1
2
2
2
MIN GAIN
(V/V)
1
2
5
1
2
5
BANDWIDTH
(MHz)
300
350
200
300
350
200
MAX4268
100M
FREQUENCY (Hz)
________________________________________________________________
Maxim Integrated Products
1
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.
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
