Agilent Technologies 93000 SOC Series Training Manual page 623

Mixed-signal training

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internal referencing

The three internal resistors shown with V

, REFTS, REFT, REFB, REFBS, and AGND.

To use the internally generated reference voltage, terminal connections should be made as shown in Figure 3.

This connection provides the standard video 2-V reference for the nominal digital output.

Figure 3. External Connections for a 2-V Analog Input Span Using the Internal-Reference Resistor Divider

For an analog input span of 4 V, 4 V is supplied to REFT, and REFB is grounded and terminal connections should

be made as shown in Figure 4. This connection provides the 4-V reference for the nominal zero to full-scale

digital output with a 4 V

(analog supply)

Figure 4. External Connections for 4-V Analog Input Span

8-BIT HIGH-SPEED ANALOG-TO-DIGITAL CONVERTERS

PRINCIPLES OF OPERATION

can generate a 2-V reference voltage. These resistors are brought

(analog supply)

analog input at ANALOG IN.

POST OFFICE BOX 655303

SLAS095L – SEPTEMBER 1994 – REVISED JUNE 2003

DALLAS, TEXAS 75265

TLC5510, TLC5510A

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