GC509 Datasheet, PDF (2/4 Pages) Gennum Corporation – Class A Amplifier with 3 Independent Gain Blocks

ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Power Dissipation
Operating Temperature
Storage Temperature
VALUE / UNITS
5V DC
25 mW
-10^o to + 40^oC
-20^o to + 70^oC
CAUTION
CLASS 1 ESD SENSITIVITY
PIN CONNECTION
V_MIC
5
A IN
B IN
A OUT
GND
1
6
V_B
C OUT
R_E
C IN
10
B OUT
ELECTRICAL CHARACTERISTICS
Conditions: Frequency = 1 kHz, Temperature = 25^oC, Supply Voltage = 1.3 VDC
PARAMETER
SYMBOL
CONDITIONS
Amplifier Current
Transducer Current
Maximum Transducer Current
Input Bias Current
Input Referred Noise
I_AMP
I_TRANS
I_TRANS(MAX)
I_BIAS
IRN
R_E= ∞
R_E= 0 Ω
R = 1M, R = 1M
FA
FB
NFB 0.2 to 10kHz at 12dB/Oct
Harmonic Distortion
THD
S1 = b, V_OUT = 500 mVRMS
Voltage Gain
A_V
S1 = b, V_OUT = 500 mVRMS
Stable with Battery Resistance
Resistance (R_B) to:
Stability
R
B
=
22
Ω
Emitter Bias Voltage (Pin 8)
V_RE
Microphone Resistance
R_MIC
On Chip Emitter Resistor
R_E
Preamp Current Drive Capability
I_OUT
All switches remain as shown in Test Circuit unless otherwise stated in CONDITIONScolumn.
MIN
80
200
2
-50
-
-
70
-
-
3
-
-
5 ^RMIC
6
TYP
145
275
-
0
1
1
73
-
MAX UNITS
210
µA
350
µA
-
mA
50
nA
2
µVRMS
4
%
76
dB
22
Ω
55
-
mV
4
5
kΩ
200
-
Ω
30
-
µA
RB = 4.7
1.3 VDC
VOUT
V_IN ^a
R_S CS
3.3K 1.0 ^{b S1}
1kHz
4
-A
2
R_FA = 56.2K
2.7K
-B
3
10
21K
-C
7
8
R_E
9
1
R_FB = 47.5K 1.0
1.0
R_E =
47.5
R_L = 1K
0.015
510 - 70 - 3
All resistors in ohms, all capacitors in Farads unless otherwise stated
Fig.1 Test Circuit
2