Chapter 14, DIGITAL-TO-ANALOG CONVERTERS Video Solutions, Operational Amplifiers and Linear Integrated Circuits

Problem 1

What is the resolution for (a) 10-bit DAC and (b) 14-bit DAC?

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00:50

Problem 2

If the input reference voltage is $10 \mathrm{~V}$ for each of the DACs of Problem 14-1, what is the equivalent least significant voltage value?

Khoobchandra Agrawal

Numerade Educator

01:11

Problem 3

What is the maximum output voltage for a 10 -bit DAC if the reference voltage is set at $10.24 \mathrm{~V}$ ?

Kajal Gautam

Numerade Educator

A 12-bit DAC has a least significant bit resolution of $2.5 \mathrm{mV} / \mathrm{bit}$, what is the output voltage if the input binary patterns are:
(a) 100011001000
(b) 001100100101
The most significant bit is the leftmost bit.

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01:11

Problem 5

The output voltage of an 8-bit DAC is $1.9 \mathrm{~V}$. What is the input digital code if the reference voltage is $5.12 \mathrm{~V}$ ?

Kajal Gautam

Numerade Educator

Problem 6

A 12-bit DAC has an offset error of $-1 / 2 \mathrm{LSB}$ and a gain error of $-1 / 2 \mathrm{LSB}$. If the input reference voltage is $10.24 \mathrm{~V}$, what is the output voltage when the input digital code is all Is?

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07:17

Problem 7

Refer to the R-2R ladder network of Fig. 14-7. Let $V_{\text {ref }}=10 \mathrm{~V}, R_f=5 \mathrm{k} \Omega, R=5 \mathrm{k} \Omega$, and $2 R=10 \mathrm{k} \Omega$. Find (a) characteristic ladder resistance, (b) $I_0$; (c) voltage resolution; (d) output-input equation; (e) $V_o$.

Km Neeraj

Numerade Educator

02:11

Problem 8

What is the voltage at pins 2 and 3 of the op amp in Fig. 14-9(a) when the digital inputs are 1000000 ? Also calculate the voltage across the feedback resistor to get $V_o$.

Kajal Gautam

Numerade Educator

Problem 9

A basic DAC consists of a reference voltage, ladder network, current switches, and op amp. Name two additional features required to make the DAC microprocessor compatible.

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Problem 10

Can the AD558 and DAC-08 be used as multiplying DACs?

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01:12

Problem 11

These questions refer to the AD558. (a) Name the terminals that allow this DAC to be selected. (b) Describe the digital input register's latching mode and (c) transparent mode of operation.