LT1806CS6 Linear Technology, LT1806CS6 Datasheet - Page 23

• Manufacturer Part Number: LT1806CS6
• Manufacturer: Linear Technology
• Type: General Purpose Amplifierr

Specifications of LT1806CS6

• Rail/rail I/o Type: Rail to Rail Input/Output
• Number Of Elements: 1
• Unity Gain Bandwidth Product: 325MHz
• Slew Rate: 125V/us
• Common Mode Rejection Ratio: 79dB
• Input Offset Voltage: 700uV
• Input Bias Current: 4uA
• Single Supply Voltage (typ): 3/5/9/12V
• Dual Supply Voltage (typ): ±3/±5V
• Voltage Gain In Db: 106.85dB
• Power Supply Rejection Ratio: 90dB
• Power Supply Requirement: Single/Dual
• Shut Down Feature: Yes
• Single Supply Voltage (min): 2.5V
• Single Supply Voltage (max): 12.6V
• Dual Supply Voltage (min): ±1.25V
• Dual Supply Voltage (max): ±6.3V
• Technology: BiCOM
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 6
• Package Type: TSOT-23
• Lead Free Status / Rohs Status: Not Compliant

Single 3V Supply, 4MHz, 4th Order Butterworth Filter
Benefi ting from a low voltage supply operation, low
distortion and rail-to-rail output of LT1806/LT1807, a low
distortion fi lter that is suitable for antialiasing can be built
as shown in Figure 6.
TYPICAL APPLICATIONS
V
V
2
IN
S
232Ω
(OPTIONAL)
Figure 6. Single 3V Supply, 4MHz, 4th Order Butterworth Filter
365Ω
665Ω
220pF
–10
–20
–30
–40
–50
–60
–70
–80
–90
10
Figure 7. Filter Frequency Response
0
4.7μF
(OPTIONAL)
10k
–
1/2 LT1807
+
V
V
232Ω
47pF
S
IN
= 3V, 0V
= 2.5V
100k
P-P
FREQUENCY (Hz)
274Ω
1M
On a 3V supply, the fi lter built with LT1807 has a passband
of 4MHz with 2.5V
than 70dB to frequency of 100MHz. As an option to minimize
the DC offset voltage at the output, connect a series resistor
of 365Ω and a bypass capacitor at the noninverting inputs
of the amplifi ers as shown in Figure 6.
562Ω
10M
470pF
18067 F07
100M
–
1/2 LT1807
+
274Ω
22pF
P-P
signal and stopband that is greater
18067 F06
LT1806/LT1807
V
OUT
23
18067fc