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ISL26310 Datasheet(PDF) 15 Page - Renesas Technology Corp

Part # ISL26310
Description  12-bit, 125kSPS Low-power ADCs with Single-ended and Differential Inputs and Multiple Input Channels
PDF  23 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

ISL26310 Datasheet(HTML) 15 Page - Renesas Technology Corp

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ISL26310, ISL26311, ISL26312, ISL26313, ISL26314, ISL26315, ISL26319
FN7549 Rev 3.00
Page 15 of 23
August 18, 2015
FIGURE 27. PRECISION VOLTAGE REFERENCE FOR +5V SUPPLY
1
2
3
4
8
7
6
5
DNC
VIN
COMP
GND
DNC
DNC
VOUT
TRIM
0.1µF
VDD
1µF (SEE VOLTAGE REFERENCE INPUT)
2.5V
VREF
0.1µF
BULK
+
5V
ISL21090
ISL2631X
ISL2632X
FIGURE 28. VOLTAGE REFERENCE FOR +2.7V TO +3.6V, OR FOR +5V SUPPLY
VDD
1µF (SEE VOLTAGE REFERENCE INPUT)
VREF
0.1µF
BULK
+
+2.7V TO +3.6V
ISL21010
GND
VIN
VOUT
1
2
3
0.1µF
1.25, 2.048 OR 2.5V
OR +5V
ISL2631X
ISL2632X
FIGURE 29. VOLTAGE REFERENCE FOR ISL26310/313 IS DERIVED FROM VDD
VDD
1µF (SEE VOLTAGE REFERENCE INPUT)
BULK
+2.7V TO +5V
ISL26310
ISL26313
TABLE 1. OUTPUT CODES - DIFFERENTIAL
INPUT VOLTAGE
TWO’S COMPLEMENT (12-bit)
>(VFS - 1.5 LSB)
7FF
VFS - 1.5 LSB
7FF
...
7FE
-0.5 LSB
000
…
FFF
-VFS +0.5 LSB
801
…
800
NOTE: VFS in the table above equals the voltage between AIN+ and AIN-.
Differential full scale is equal to 2* VREF.
TABLE 2. OUTPUT CODES - SINGLE-ENDED
INPUT VOLTAGE
BINARY (12-bit)
>AIN - 1.5 LSB
FFF
AIN - 1.5 LSB
FFF
…
FFE
0.5 LSB
001
…
000
<0.5 LSB
000
NOTE: Single-ended full scale is equal to VREF.



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