| # |
Function |
Comments |
NPNP |
Schottky |
LNPN |
LPNP |
R |
Resistance |
RBP |
REP |
Jcaps |
CU |
Bias |
External
Components? |
| F1 |
Fixed Gain
AC Amplifier |
|
2 |
0 |
0 |
0 |
41 |
30750 |
0 |
0 |
0 |
0 |
None |
none |
| F2 |
Transconductance
Amplifier |
|
11 |
0 |
0 |
0 |
22 |
16500 |
0 |
0 |
0 |
0 |
None |
none |
| F3 |
Buffer |
|
15 |
0 |
0 |
0 |
60 |
45000 |
2 |
0 |
1 |
0 |
None |
none |
| F4 |
Operational
Amplifier |
|
12 |
0 |
0 |
1 |
0 |
0 |
0 |
1 |
0 |
0 |
None |
none |
| F5 |
Operational
Amplifier |
PNP Equivalent
to F4 |
15 |
0 |
0 |
1 |
1 |
750 |
0 |
1 |
1 |
0 |
None |
none |
| F6 |
Operational
Amplifier |
Darlington
Input |
17 |
0 |
0 |
0 |
|
0 |
0 |
1 |
1 |
0 |
None |
none |
| F7 |
Operational
Amplifier |
Different
Input Stage |
17 |
0 |
0 |
1 |
2 |
1500 |
0 |
1 |
0 |
0 |
None |
none |
| F8 |
Voltage
to Current Converter |
Darlington
Buffer |
12 |
0 |
0 |
0 |
|
0 |
0 |
0 |
0 |
0 |
None |
precision
resistor |
| F9 |
Frequency
Divider |
|
14 |
0 |
0 |
0 |
68 |
51000 |
1 |
0 |
0 |
0 |
4 @10 uA |
none |
| F10 |
Schmitt
Trigger |
|
5 |
0 |
0 |
0 |
20 |
15000 |
0 |
0 |
0 |
0 |
50 uA |
none |
| F11 |
NAND/ NOR |
|
9 |
0 |
0 |
0 |
20 |
15000 |
0 |
0 |
0 |
0 |
None |
none |
| F12 |
Exclusive
Or Gate |
|
6 |
0 |
0 |
0 |
|
0 |
0 |
0 |
0 |
0 |
None |
none |
| F13 |
RS Flip
Flop |
|
6 |
0 |
0 |
0 |
20 |
15000 |
0 |
0 |
0 |
0 |
None |
none |
| F14 |
RS Flip
Flop |
Slight
Improvement over F13 |
10 |
0 |
0 |
0 |
|
0 |
0 |
0 |
0 |
0 |
None |
none |
| F15 |
Square
Wave Oscillator |
|
10 |
0 |
0 |
0 |
69 |
51750 |
1 |
0 |
0 |
0 |
10 uA |
compensation
cap |
| F16 |
Pulse Generator |
|
8 |
1 |
0 |
0 |
117 |
87750 |
2 |
0 |
0 |
0 |
50 uA |
external
RC |
| F17 |
LED Flasher |
|
6 |
0 |
0 |
0 |
78 |
58500 |
1 |
0 |
0 |
0 |
None |
external
RC and diode |
| F18 |
Triangle
Wave Oscillator |
|
21 |
0 |
0 |
0 |
76 |
57000 |
0 |
0 |
0 |
0 |
None |
compensation
cap |
| F19 |
Voltage
Regulator |
Less than
10 V, Needs 1.25 V Reference |
10 |
0 |
1 |
0 |
57 |
42750 |
0 |
0 |
1 |
0 |
1.25 Vref |
none |
| F20 |
Voltage
Regulator |
Built in
reference |
14 |
0 |
0 |
0 |
91 |
68250 |
0 |
1 |
1 |
0 |
None |
none |
| F21 |
Voltage
Regulator |
No compensation
capacitor |
15 |
0 |
0 |
0 |
63 |
47250 |
0 |
1 |
0 |
0 |
None |
none |
| F22 |
Startup
Timer |
|
6 |
0 |
0 |
0 |
51 |
38250 |
1 |
0 |
0 |
0 |
None |
RC |
| F23 |
555 Timer |
|
24 |
0 |
1 |
0 |
75 |
56250 |
1 |
0 |
0 |
3 |
None |
RC |
| F24 |
Timer |
Simple
Timer |
10 |
0 |
0 |
0 |
75 |
56250 |
0 |
0 |
1 |
0 |
None |
RC |
| F25 |
Voltage
Reference |
Bandgap
= 1.25V |
9 |
0 |
0 |
0 |
71 |
53250 |
0 |
0 |
1 |
0 |
None |
none |
| F26 |
Voltage
to Current Converter |
Referenced
to VP |
11 |
0 |
2 |
3 |
40 |
30000 |
0 |
0 |
0 |
0 |
100 uA |
compensation
(2R, 1C) |
| F27 |
Low Voltage
Reference |
Reference
= 500 mV |
11 |
0 |
1 |
0 |
84 |
63000 |
0 |
0 |
1 |
0 |
None |
none |
| F28 |
Voltage
(and current) Reference |
Without
bandgap |
4 |
0 |
0 |
0 |
85 |
63750 |
0 |
0 |
0 |
0 |
None |
none |
| F29 |
Voltage
Regulator |
Low Dropout
Regulator |
5 |
0 |
0 |
1 |
112 |
84000 |
0 |
0 |
0 |
0 |
None |
none |
| F30 |
Voltage
Regulator |
Separate
bandgap |
4 |
0 |
0 |
1 |
25 |
18750 |
1 |
0 |
0 |
0 |
50 uA &
1.25 Vref |
load capacitor |
| F31 |
Crystal
Sine Wave Oscillator |
|
2 |
0 |
0 |
0 |
43 |
32250 |
0 |
0 |
0 |
0 |
1 mA |
crystal
et al, LC |
| F32 |
L-C Oscillator |
|
9 |
0 |
2 |
0 |
42 |
31500 |
0 |
1 |
0 |
0 |
None |
LCR |
| F33 |
Bandgap
Reference |
Explanation
of Bandgap |
7 |
0 |
0 |
0 |
93 |
69750 |
0 |
1 |
1 |
0 |
None |
none |
| F34 |
Bandgap
Reference |
High Power
Supply Rejection |
10 |
1 |
0 |
0 |
91 |
68250 |
0 |
0 |
0 |
0 |
None |
load capacitor |
| Term |
Meaning |
Comments |
| NPNP |
The NPN/PNP
island structure |
This can
be multiple NPNs or multiple PNPs. |
| Schottky |
Schottky
Transistor Island |
This can
be a Schottky transistor, a Schottky diode or an NPN transistor. |
| LNPN |
Large NPN |
An array
of 24 transistors that can sink up to 200 mA. These can be connected
for from 1 to 24 emitters, with 1 to 12 bases and 1 to 24 collectors. |
| LPNP |
Large PNP |
The large
PNP can carry up to 6 mA. |
| R |
Resistor
Count |
Number
of 750 Ohm Resistors. |
| Resistance |
Internal
Resistance |
Amount
of Internal Resistance. |
| RBP |
Base Pinch
Resistors |
Base Pinch
Resistors are more like current sources. Applied voltage is
limited to 5V. Use these when you need a current source, but
the value us not important (see the Design Manual). |
| REP |
Epi-Pinch
Resistors |
These are
resistors that lead to the minus voltage (substrate). These
are good for startup circuits. |
| Jcaps |
Junction
Capacitors |
Junction
capacitors have a voltage dependancy. The breakdown voltage
of these devices is 9V, so these are not usable for the full
20V range. The capacitance would range from about 7 pF to 10
pF at 3V as an example. |
| CU |
Cross Unders |
Since the
Arrays only require one level of metal to customize, it is sometimes
necessary to provide a path under metal. These act like small
resistors, so it is a preference to use these on lower current
nodes (a base connection is preferrable to an emitter connection. |
| Bias |
Bias Supplies |
These are
merely current supplies that need to be set up with one of the
example circuits. This simplifies the presentation of the circuits
to avoid a confusion over what is used for bias, and what is
actual circuitry. |
