Exam 14: Special-Purpose Integrated Circuits

To avoid very large capacitors in a capacitively coupled isolation amplifier, the amplifier can use

An OTA is a current- to- voltage amplifier.

An OTA with a transconductance of 2000 µS has a load resistance of 5 k▲. If the input voltage is 300 mV, the output voltage is

Figure 6 -Refer to Figure 6(b). The circuit is

Figure 4 The circuit is a modulator for an audio signal. -Refer to Figure 4. The input at Vin1 is the _ and the input to the input at Vin2 is the .

Some instrumentation amplifiers can set gain with a binary input.

An instrumentation amplifier should have high CMRR.

-Refer to Figure 5. If the input is 3.0 V and IR = 50 nA, VOUT will be

An isolation amplifier requires two separate power supplies.

Assume there is a phase shift between two common- mode signals. This can

Figure 3 -Refer to Figure 3. This purpose of R3 is to adjust the

The logarithm of a number is the power to which a base is raised to obtain the number.

Figure 6 -Refer to Figure 6(a). Assume S was momentarily closed and Vin is connected to a +3.0 VDC source. The voltage at the inverting input is

Figure 2 Assume the bias current is 125 µA and g_m = 16 µS/µA. -Refer to Figure 2. The voltage gain is

Figure 1 A capacitively coupled isolation amplifier -Refer to Figure 1. The box with the ? represents a

The output signal from an isolation amplifier is a

The bandwidth of a typical instrumentation amplifier is

Figure 2 Assume the bias current is 125 µA and g_m = 16 µS/µA. -Refer to Figure 2. If the power supplies have a lower voltage, the gain is

-Refer to Figure 5. To change this to an antilog amplifier,

A typical application for an instrumentation amplifier is