TLV1544C, TLV1544I, TLV1548C, TLV1548I, TLV1548M

LOW-VOLTAGE 10-BIT ANALOG-TO-DIGITAL CONVERTERS

WITH SERIAL CONTROL AND 4/8 ANALOG INPUTS

SLAS139C – DECEMBER 1996 – REVISED JANUARY 1999

28

POST OFFICE BOX 655303

APPLICATION INFORMATION

1000000000

0111111111

0000000010

0000000001

0000000000

1111111110

0

0.0096

2.4528

2.4576

2.4624

1000000001

1111111101

1111111111

4.9128

4.9140

4.9152

512

511

2

1

0

1022

513

1021

1023

VI – Analog Input Voltage – V

VZT = VZS + 1/2 LSB

VZS

See Notes A and B

0.0048

VFT = VFS – 1/2 LSB

VFS

VFSnom

NOTES: A. This curve is based on the assumption that Vref+ and Vref – have been adjusted so that the voltage at the transition from digital 0

to 1 (VZT) is 0.0024 V, and the transition to full scale (VFT) is 4.908 V. 1 LSB = 4.8 mV.

B. The full-scale value (VFS) is the step whose nominal midstep value has the highest absolute value. The zero-scale value (VZS) is

the step whose nominal midstep value equals zero.

Figure 37. Ideal Conversion Characteristics