A depletion mode MOSFET with room temperature parameters k = 4 mA/V^2 and V t = -3.1 V is connected to the circuit shown. Find the value of R such that the MOSFET will operate at its zero-temperature coefficient point of iD= 4.5 mA, VGS = -1.6 V. What is the nearest 5% standard resistor value? Show that the ZTC point of an enhancement mode MOSFET can never be reached with this circuit. 9 VDD = 10V ↓ tiD VDS 3R "/w k = 4mA/√² V₂ = -3-1 V 2
A depletion mode MOSFET with room temperature parameters k = 4 mA/V^2 and V t = -3.1 V is connected to the circuit shown. Find the value of R such that the MOSFET will operate at its zero-temperature coefficient point of iD= 4.5 mA, VGS = -1.6 V. What is the nearest 5% standard resistor value? Show that the ZTC point of an enhancement mode MOSFET can never be reached with this circuit. 9 VDD = 10V ↓ tiD VDS 3R "/w k = 4mA/√² V₂ = -3-1 V 2
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Transcribed Image Text:A depletion mode MOSFET with room temperature parameters k = 4 mA/V^2 and
V_t = -3.1 V is connected to the circuit shown. Find the value of R such that the
MOSFET will operate at its zero-temperature coefficient point of iD= 4.5 mA,
VGS = -1.6 V. What is the nearest 5% standard resistor value? Show that the ZTC
point of an enhancement mode MOSFET can never be reached with this circuit.
VOD
tin
$R
Solution
-
LOV
VDS
k = 4mA/√²
Vt=
- -3.1 V
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