SSM2110_15 Datasheet, PDF (1/11 Pages) Analog Devices – TRUE RMS TO DC CONVERTER

- ANALOGDEVICES FAX-ON-DEMAND HOTLINE
Page 16
~ ANALOG
W DEVICES
TrueRMS-to-DC
Converter
I
.FEATURES
Multiple Output Options (Absolute Value, RMS,Log RMS,
Log Absolute Value, Average Absolute Value)
.Wide Dynamic Range
:.. 100dB
. Preblas Option for Fast Response at low Signalleyels
.On-Chip Log Output Amplifier
. Optional Internal log Output Temperature
..Compensation
Low Drift Internal Yoltage Reference
Low Cost
GENERAL DESCRIPTION
SSM-211O I
The SSM-2110 is a true RMS-to-DCconverter designed to pro-
vide multiple linear and logarithmic output options. The linear
outputs, true RMS and absolute value, can be obtained simulta-
neously with the absolute value output configurable to give a peak
function. The logarithmic outputs can provide log RMS, log ab-
solute value or log average absolute value. Full on-chip tem.
perature compensation is available for each output option.
Continued
PIN CONNECTIONS
O....... BSOLETE APPLICATIONS
Audio Dynamic Range Processors
Audio Metering Systems
Digital Multlmeters
Noise Testers
Panel Meters
Power Meters
Process Control Systems
FUNCTIONAL DIAGRAM
f
LOG OUT
ABSOLUTE
VALUE
I
LOG
ABSOLUTEVALUE m.
1!J N.C.
EI v-
rnc-
I 1S-PIN PLASTIC DIP
(P.Sufflx)
.
2 LOG SCALE
11 -LOG IN
&^{10 _LOG IN}
C-
V.
13
16
RItIS
5
RECOVERY
AMPLIFIER
!
- -LOGIN 10
~11w.1
~I-
I
-t.OGIN_11
12
LOG SCALE -
-^I.
n_tl LOG
RECOVERY
TRANSISTOR
0"
I
17
BASE
I EMITTER
IHPUT - 17
O.
RMS
COMPUTING
LOOP
4
GNO
-:
-:
VRII' ^J
2
V-
LOG ~
PRESIAS
LOG-
The SSM-21 10 h.. been granted meak work protection under the semiconductor Chip Protaction Act of 11183.
SSM-2110