L9700D STMicroelectronics, L9700D Datasheet - Page 5

• Manufacturer Part Number: L9700D
• Description: IC LIMITER HEX PREC SO-8
• Manufacturer: STMicroelectronics
• Series: L9700r

Specifications of L9700D

• Voltage - Working: 5V
• Technology: Mixed Technology
• Power (watts): 650mW
• Number Of Circuits: 6
• Applications: General Purpose
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Clamping: -

Figure 3 : Typical Application.
The minimum value for C
curacy required, the time taken to sample the input
and the input impedance during that time, while the
maximum value is determined by the required fre-
quency response and the value of R
Thus for a resistive input A/D connector where :
Thus :
T
R
V
k
Q
Q
I
D
S
IN
D
1
2
=
=
=
=
=
=
=
Sample time (Seconds)
Device input resistance (Ohms)
Input voltage (Volts)
Required accuracy (%)
Charge on capacitor before sampling
Charge on capacitor after sampling
Device input current (Amps)
Q
1
– Q
2
=
k Q
100
IN
1
is determined by the ac-
S
.
but
and
so that
and
so
The calculation for a sample and hold type convertor
is even simpler :
k
C
H
=
=
Required accuracy (%)
Hold capacitor (Farad)
Q
Q
I
C
C
C
D
IN
IN
IN
1
1
T
– Q
= C
S
(min) =
(min) =
(min) =
=
2
IN
= I
k C
V
D
IN
– T
100
100 C
I
V
100 T
IN
D
k R
IN
k
S
– V
T
S
k
D
IN
H
S
Farad
Farad
Farad
L9700
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