Datasheet LT6600-5 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | Very Low Noise, Differential Amplifier and 5MHz Lowpass Filter |
| Pages / Page | 12 / 1 — FEATURES. DESCRIPTION. APPLICATIONS. TYPICAL APPLICATION. Dual, Matched, … |
| File Format / Size | PDF / 158 Kb |
| Document Language | English |
FEATURES. DESCRIPTION. APPLICATIONS. TYPICAL APPLICATION. Dual, Matched, 5MHz Lowpass Filter. 5MHz Phase Distribution. (50 Units)
Model Line for this Datasheet
Text Version of Document
LT6600-5 Very Low Noise, Differential
Amplifi er and 5MHz Lowpass Filter
FEATURES DESCRIPTION
n Programmable Differential Gain via Two External The LT®6600-5 combines a fully differential amplifi er with a Resistors 4th order 5MHz lowpass fi lter approximating a Chebyshev n Adjustable Output Common Mode Voltage frequency response. Most differential amplifi ers require n Operates and Specifi ed with 3V, 5V, ±5V Supplies many precision external components to tailor gain and n 0.5dB Ripple 4th Order Lowpass Filter with 5MHz bandwidth. In contrast, with the LT6600-5, two external Cutoff resistors program differential gain, and the fi lter’s 5MHz n 82dB S/N with 3V Supply and 2V cutoff frequency and passband ripple are internally set. P-P Output n Low Distortion, 2V The LT6600-5 also provides the necessary level shifting P-P, 800Ω Load 1MHz: 93dBc 2nd, 96dBc 3rd to set its output common mode voltage to accommodate n Fully Differential Inputs and Outputs the reference voltage requirements of A/Ds. n Compatible with Popular Differential Amplifi er Using a proprietary internal architecture, the LT6600-5 Pinouts integrates an anti-aliasing fi lter and a differential ampli- n Available in an SO-8 Package fi er/driver without compromising distortion or low noise performance. At unity gain the measured in band sig- nal-to-noise ratio is an impressive 82dB. At higher gains
APPLICATIONS
the input referred noise decreases so the part can process n High Speed ADC Anti-Aliasing and DAC Smoothing in smaller input differential signals without signifi cantly Networking or Cellular Base Station Applications degrading the output signal-to-noise ratio. n High Speed Test and Measurement Equipment The LT6600-5 also features low voltage operation. The n Medical Imaging differential design provides outstanding performance for n Drop-in Replacement for Differential Amplifi ers a 2VP-P signal level while the part operates with a single L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. 3V supply. All other trademarks are the property of their respective owners. For similar devices with other cutoff frequencies, refer to the LT6600-20, LT6600-10 and LT6600-2.5.
TYPICAL APPLICATION Dual, Matched, 5MHz Lowpass Filter 5MHz Phase Distribution
3V 0.1μF
(50 Units)
30 RIN 3 1 – + 4 0.01μF 25 7 IIN LT6600-5 Q 2 OUT 8 – 20 + 5 RIN 6 806Ω GAIN = 15 VOCM 3V 0.1μF RIN (1V-1.5V) 10 RIN 3 1 – PERCENTAGE OF UNITS (%) + 4 0.01μF 5 7 QIN LT6600-5 I 2 OUT 8 – 0 + –135 –134.5 –134–133.5–133 –132.5–132 –131.5 5 RIN 6 5MHz PHASE (DEG) 66005 TA01 66005fb 1
Amplifi er and 5MHz Lowpass Filter
FEATURES DESCRIPTION
n Programmable Differential Gain via Two External The LT®6600-5 combines a fully differential amplifi er with a Resistors 4th order 5MHz lowpass fi lter approximating a Chebyshev n Adjustable Output Common Mode Voltage frequency response. Most differential amplifi ers require n Operates and Specifi ed with 3V, 5V, ±5V Supplies many precision external components to tailor gain and n 0.5dB Ripple 4th Order Lowpass Filter with 5MHz bandwidth. In contrast, with the LT6600-5, two external Cutoff resistors program differential gain, and the fi lter’s 5MHz n 82dB S/N with 3V Supply and 2V cutoff frequency and passband ripple are internally set. P-P Output n Low Distortion, 2V The LT6600-5 also provides the necessary level shifting P-P, 800Ω Load 1MHz: 93dBc 2nd, 96dBc 3rd to set its output common mode voltage to accommodate n Fully Differential Inputs and Outputs the reference voltage requirements of A/Ds. n Compatible with Popular Differential Amplifi er Using a proprietary internal architecture, the LT6600-5 Pinouts integrates an anti-aliasing fi lter and a differential ampli- n Available in an SO-8 Package fi er/driver without compromising distortion or low noise performance. At unity gain the measured in band sig- nal-to-noise ratio is an impressive 82dB. At higher gains
APPLICATIONS
the input referred noise decreases so the part can process n High Speed ADC Anti-Aliasing and DAC Smoothing in smaller input differential signals without signifi cantly Networking or Cellular Base Station Applications degrading the output signal-to-noise ratio. n High Speed Test and Measurement Equipment The LT6600-5 also features low voltage operation. The n Medical Imaging differential design provides outstanding performance for n Drop-in Replacement for Differential Amplifi ers a 2VP-P signal level while the part operates with a single L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. 3V supply. All other trademarks are the property of their respective owners. For similar devices with other cutoff frequencies, refer to the LT6600-20, LT6600-10 and LT6600-2.5.
TYPICAL APPLICATION Dual, Matched, 5MHz Lowpass Filter 5MHz Phase Distribution
3V 0.1μF
(50 Units)
30 RIN 3 1 – + 4 0.01μF 25 7 IIN LT6600-5 Q 2 OUT 8 – 20 + 5 RIN 6 806Ω GAIN = 15 VOCM 3V 0.1μF RIN (1V-1.5V) 10 RIN 3 1 – PERCENTAGE OF UNITS (%) + 4 0.01μF 5 7 QIN LT6600-5 I 2 OUT 8 – 0 + –135 –134.5 –134–133.5–133 –132.5–132 –131.5 5 RIN 6 5MHz PHASE (DEG) 66005 TA01 66005fb 1
