THAT1510 ETC, THAT1510 Datasheet - Page 4

• Manufacturer Part Number: THAT1510
• Description: Low Noise/ High Performance Microphone Preamplifier IC
• Manufacturer: ETC

Page 4
RG2 pins is all that is needed to set the gain of the
THAT 1510 / 1512, according to the formulae
Gain Setting
A single external resistor between the RG1 and
for the 1510:
for the 1512:
-In
+In
C1
470p
C2
470p
G
G
THAT Corporation; 45 Sumner Street; Milford, Massachusetts 01757-1656; USA
= +
=
1
Tel: [phone]; Fax: [phone]; Web: www.thatcorp.com
0 5
-In
+In
.
10 W
+
47p
C3
RG
k
5
RG
k
W
R1
1k
Figure 3. 1510 / 1512 Circuit with Output Offset Correction
C2
470p
or
C1
470p
47p
R2
1k
C3
or
RG
RG
RG
Figure 2. Basic 1510 / 1512 Circuit
=
=
10
G
2
8
1
3
G
1k
R1
Applications
5
-
k
-
+In
k
-In
W
1
RG1
100n
RG2
0 5
1k
W
R2
C9
.
-15
+15
V-
RG
V+
100n
Ref
C6
2
8
1
3
-In
+In
RG2
RG2 may be left open. RG should be set to 10kW in
the 1512. To avoid excess noise and ensure tempera-
ture stability, non-inductive wirewound or metal-film
resistors are recommended for RG.
ance on RG, and on the gain equation accuracy of the
THAT 1510/1512. Total gain drift will result from
the mismatch between the tempco of RG and the
RG1
Out
For unity gain operation on the 1510, RG1 and
Total gain accuracy will depend on both the toler-
+15
-15
V-
V+
6
THAT 1510/1512
U1
100n
100n
Ref
C6
C9
THAT 1510 / 1512 Microphone Preamplifier
U2
6
Out
353
THAT
1510/1512
U1
100n
C8
6
2
3
Out
510k
Preliminary Information
R3
Out