LTC6601-1 Datasheet, PDF (1/40 Pages) Linear Technology – Low Noise, 0.5% Tolerance, 5MHz to 28MHz, Pin Confi gurable Filter/ADC Driver

LTC6601-1
FEATURES
Low Noise, 0.5% Tolerance,
5MHz to 28MHz, Pin Configurable
Filter/ADC Driver
DESCRIPTION
n _{Pin Configurable Gain and Filter Response}
Up to 28MHz
n _{Few External Components Required}
n _{Resistors Trimmed to 0.5% Typical}
n _{Capacitors Trimmed to 0.5% Typical}
n _{Very Low Noise: 80dB S/N in 100MHz Bandwidth}
n _{Very Low Distortion (2VP-P):}
1MHz: –100dBc 2nd, –123dBc 3rd
10MHz: –72dBc 2nd, –103dBc 3rd
n _{Adjustable Output Common Mode Voltage}
n _{Rail-to-Rail Output Swing}
n _{Power Configurability and Low Power Shutdown}
n _{Tiny 0.75mm 20-Lead (4mm × 4mm) QFN Package}
APPLICATIONS
n _{Differential Input A/D Converter Driver}
n _{Antialiasing/Reconstruction Filter}
n _{Single-Ended to Differential Conversion/Amplification}
n _{Low Voltage, Low Noise, Differential Signal}
Processing
n _{Common Mode Voltage Translation}
The LTC^®6601-1 is a very easy-to-use fully differential
2nd order active RC filter and driver. On-chip resistors,
capacitors, and amplifier bandwidth are trimmed to provide
consistent and repeatable filter characteristics.
The filter characteristics are pin-strap configurable. Cutoff
frequencies range from 5MHz to 28MHz. Gain is pin-strap
programmable between –17dB and +17dB.
A three-state BIAS pin is provided to adjust amplifier
power consumption. Select between high performance,
low power (50% power reduction), and standby modes
with the BIAS pin.
The LTC6601-1 is available in a compact 4mm × 4mm
16-pin leadless QFN package.
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Protected by U.S. Patents including 6271719.
TYPICAL APPLICATION
19MHz, 2nd Order Lowpass Filter. Gain = 6dB
+
V_{IN 3V}
–
20 19 18 17 16
LTC6601-1
1
15
2
+
14
3
13
4
–
12
5
11
6 7 8 9 10
–
3V
0.1μF _VOUT
+
0.1μF
66011 TA01a
10
5
0
–5
–10
–15
–20
–25
–30
1
Frequency Response
10
FREQUENCY (MHz)
100
66011 TA01b
66011f
1