OPA363

Manufacturer Part NumberOPA363
ManufacturerTexas Instruments
OPA363 datasheet
 


Specifications of OPA363

Number Of Channels1Total Supply Voltage(min)(+5v=5, +/-5v=10)1.8
Total Supply Voltage(max)(+5v=5, +/-5v=10)5.5Iq Per Channel(max)(ma)0.75
Gbw(typ)(mhz)7Slew Rate(typ)(v/us)5
Vio (25c)(max)(mv)0.5Offset Drift(typ)(uv/c)3
Vn At 1khz(typ)(nv/rthz)17Iib(max)(pa)10
Cmrr(min)(db)74Rail-railIn/Out
Operating Temperature Range(c)-40 to 125Pin/package6SOT-23, 8SOIC
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49k
Clean 3.3V Supply
4k
OPAx363
OPAx364
Electret
6k
5k
Microphone
1 F
FIGURE 10. Microphone Preamplifier.
R
1
3.92k
V
IN
1/2
7
OPA2363
FIGURE 11. The OPA2363 as a 3rd-Order, 40kHz, Low-Pass GIC Filter.
V
= 1Vrms
IN
FIGURE 12. The OPA363 or OPA364 Configured as a 3-Pole, 20kHz, Sallen-Key Filter.
OPA363, 2363, 364, 2364, 4364
SBOS259B
ACTIVE FILTERING
Low harmonic distortion and noise specifications plus high
gain and slew rate make the OPA363 and OPA364 optimal
candidates for active filtering. Figure 11 shows the OPA2363
3.3V
configured as a low-distortion, 3rd-order GIC (General Immit-
tance Converter) filter. Figure 12 shows the implementation
of a Sallen-Key, 3-pole, low-pass Bessel filter.
V
OUT
R
3
1.33k
R
11
3.92k
3
R
1/2
12
1
3.92k
OPA2363
6
2
C
13
5
1000pF
R
14
3.48k
C
15
1000pF
220pF
19.5k
150k
1.8k
3.3nF
47pF
www.ti.com
2
6
OPA363
V
OUT
3
C
4
1000pF
OPA363
V
OUT
11