OMO ElectronicOMO Electronic
Expand menu
0 Cart

MAT12AHZ

P1-P3P4-P6P7-P9P10-P12P13-P13
MAT12 Data Sheet
Rev. A | Page 6 of 12
100
10
1
0.1
0.01
0.001
0.001 0.01 0.1 1 10
INPUT RESISTANCE, h
IE
(MΩ)
COLLECTOR CURRENT, I
C
(mA)
V
CE
= 5V
09044-008
Figure 8. Small Signal Input Resistance vs. Collector Current
1m
0.1m
0.01m
1µ
0.1µ
0.01µ
0.001 10001001010.10.01
CONDUCTANCE, h
OE
(mho)
COLLECTOR CURRENT, I
C
(mA)
V
CE
= 5V
09044-009
Figure 9. Small Signal Output Conductance vs. Collector Current
0.
01
0.1
1
10
10
0
0
0.1
0.2 0.
3
0
.4 0.5 0
.6 0.7 0.
8 0.9
COLLECTOR CURRENT, I
C
(mA)
SATURAT
ION VOLTAG
E, V
SAT
(V)
T
A
= –55°C
T
A
= +125°C
T
A
= +25°C
09044-018
Figure 10. Collector Current vs. Saturation Voltage
1000
100
10
1
0.1
0.01
25 50
75
100
125
CURRENT, I
CBO
(nA)
TEMPERATURE (°C)
09044-010
Figure 11. Collector-to-Base Leakage Current vs. Temperature
40
35
30
25
20
15
10
5
0
0
10 20 30 40 50
CAPACITANCE, C
CB
(pF)
REVERSE BIAS VOLTAGE (V)
09044-011
Figure 12. Collector-to-Base Capacitance vs. Reverse Bias Voltage
40
35
30
25
20
15
10
5
0
0 10 20 30 40 50
CAPACITANCE, C
CC
(pF)
COLLECTOR-TO-SUBSTRATE VOLTAGE (V)
09044-012
Figure 13. Collector-to-Collector Capacitance vs.
Collector-to-Substrate Voltage
Data Sheet MAT12
Rev. A | Page 7 of 12
1000
100
10
1
0.1
0.01
25 50 75 100 125
COLLECTOR-TO-COLLECTOR
LEAKAGE CURRENT, I
CC
(nA)
TEMPERATURE (°C)
09044-013
Figure 14. Collector-to-Collector Leakage Current vs. Temperature
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
10
20
30
40 50
COLLECTOR-TO-COLLECTOR
CAPACITANCE, C
CC
(pF)
REVERSE BIAS VOLTAGE (V)
09044-014
Figure 15. Collector-to-Collector Capacitance vs. Reverse Bias Voltage
MAT12 Data Sheet
Rev. A | Page 8 of 12
APPLICATIONS INFORMATION
FAST LOGARITHMIC AMPLIFIER
The circuit of Figure 16 is a modification of a standard logarith-
mic amplifier configuration. Running the MAT12 at 2.5 mA per
side (full scale) allows for a fast response with a wide dynamic
range. The circuit has a seven decade current range and a five
decade voltage range, and it is capable of 2.5 µs settling time to
1% with a 1 V to 10 V step. The output follows the equation:
IN
REF
2
23
O
V
V
q
kT
R
RR
V ln
+
=
To compensate for the temperature dependence of the kT/q term, a
resistor with a positive 0.35%/°C temperature coefficient is selected
for R
2
. The output is inverted with respect to the input and is
nominally −1 V/decade using the component values indicated.
1
4
3
2
8
7
5
6
–15V
330pF
R
3
7.5kΩ
R
2
500Ω
R
2
= 0.35%/°C
330pF
V
O
+15V
R
S
4kΩ
R
1
4kΩ
4kΩ
V
IN
(0V TO 10V)
V
REF
10V
AD8512
MAT12
1/2
AD8512
09044-015
Figure 16. Fast Logarithmic Amplifier
P1-P3P4-P6P7-P9P10-P12P13-P13

MAT12AHZ

Mfr. #:
Buy MAT12AHZ
Manufacturer:
Analog Devices Inc.
Description:
Bipolar Transistors - BJT Dual-Matched NPN Audio
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet