TLC55025M

8BIT ANALOGTODIGITAL CONVERTER

SGLS067 − MARCH 1992

POST OFFICE BOX 655303

4−184

TYPICAL CHARACTERISTICS

00000000

00000001

00000010

01111111

10000000

10000001

11111101

11111110

11111111

0

1

2

127

128

129

253

254

255

VI − Analog Input Voltage − V

VFS

VFT =

VFS − 1/2 LSB

VZS

VZT =

VZS + 1/2 LSB

See Note A

NOTE A: This curve is based on the assumption that VrefB and VrefT have been adjusted so that the voltage at the transition from digital 0 to 1

(VZT) is 0 and the transition to full scale (VFT) is 4.8545 V. 1 LSB = 19 mV.

Figure 1. Ideal Conversion Characteristics

20

15

5

0

010

20

30

40

50

60

25

35

SUPPLY CURRENT

vs

OPERATING FREE-AIR TEMPERATURE

40

70

10

30

TA − Operating Free-Air Temperature − °C

VDD = 5 V

fclock = 8 MHz

10

8

4

2

0

10

20

30

405060

12

70

6

14

REFERENCE CURRENT

vs

OPERATING FREE-AIR TEMPERATURE

TA − Operating Free-Air Temperature − °C

VDD = 5 V

VrefT = 5 V

VrefB = 0

Figure 2

Figure 3