{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

ECE231 - 2008 - Term Test 1 Solutions

# ECE231 - 2008 - Term Test 1 Solutions - ECE23IS —...

This preview shows pages 1–5. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ECE23IS — Introductory Electronics Term Test #1 Lecturers — K. Phang, R. Genov Date — Friday, Feb. 8, 2008 Duration: 50 minutes 1. Answers should be written in pen. Warning: answers written in pencil may be considered ineligible for remarking. 2. The marks for each question are indicated within bracketsﬂ. Place your ﬁnal answers in the boxes where given. 3. Show your work: answers without justiﬁcation will not receive full marks! 4. Use back sides of sheets if necessary. Extra sheets are also provided at the end. 5. Aids: calculator only. (Any calculators including programmable are allowed). Question Mark S O Wit/“CW Last Name: First Name: Student #: Circle your regular tutorial room: HA401 /HA410 / BA2145 / 2155 / 2165 / 2175 / 2185 / 2195 page 1 of7 Last Name: Question 1: [5] In the circuit shown below, each resistor has a value of lMQ, and the input voltages are as fol— lows: VH=1V, V12=2V, and VI3=4V. Assuming the opamp is ideal, ﬁnd V0. page 2 of 7 Last Name: Question 2: I [5] Assume the opamp has an inﬁnite DC open loop gain and a unity—gain bandwidth of lOGHz. Sketch the amplitude and phase responses of this circuit. Clearly label numerical values for all key points on the graphs. R1=1M§L R2=9MQ, R3=1MQ and C3=O.159pF. @LP Ni‘fﬂmﬁﬁ with gram ‘3’ H {Ea/{49‘ “3-1 ltlvfilf DVZOGiig . n '0 wads w i ,9 aijﬂo) 1“szka [O ( 19H}: [06‘th ’1’ loom-e; Wei-é )0“leer 109mm LOO/VI) i , page 3 of 7 Last Name: Question 3: The opamp in the circuit below has an output slew rate of +/- lOV/us, an input offset voltage of +3mV, an input bias current of SOnA ﬂowing into the opamp, and a zero input offset current. R1=100k£l R2=900k£2, R3=10k§2 and R4=30k£2. [5] (a) What is the maximum peak amplitude, VI max, of a ZOOkHz sine wave, 12,, applied at the input such that there is no slew rate limiting? " CA We '1‘“ * __. 7’” “2} o a i’MﬂX was? :2 «ER S Vin/ist JJU “"’ *3 R I (a t V SR __ it} x {0 fosea T: J ' » WMWW.L,W,W..memwwwwwwﬁﬂ'ff“: ° ° WW #5 AN 5' x 2‘ 37 >2 22.2139; (03 l WK; :wev “W ma page 5 of 7 Last Name: [5] (b) What is the output voltage when 121:0? BY ' Wwa V05: V9 11%?) V05 2+3OMV ---—« l :1) D) (gen/4M Iok #3019) W =‘3xgml/ ZASk page 6 of 7 ...
View Full Document

• Winter '08
• Phang
• 22nd century, DC open loop, regular tutorial room, maximum peak amplitude, 3-1 ltlvfilf DVZOGiig, ZOOkHz sine wave

{[ snackBarMessage ]}

### Page1 / 5

ECE231 - 2008 - Term Test 1 Solutions - ECE23IS —...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online