Intersil ISL70219ASEHEV1Z, Руководство пользователя

Страница: 3 / 10

UG007 Rev.1.0 Page 3 of 8
Jul 1, 2021
ISL70219ASEHEV1Z USER MANUAL
User-selectable Options
Component pads are included to enable a variety of
user-selectable circuits to be added to the amplifier VREF, inputs,
outputs, and the amplifier feedback loops.
A voltage divider ( Figure 4 , R
6
and R
12
) can be added to
establish a power supply-tracking common mode reference
using the VREF input. The input stages (see
Figure 4 ) have
additional resistor and/or capacitor pads that may be used to
add voltage divider networks or feedback networks for adding
input attenuation, or to establish input DC offsets through the
VREF pin. The output stages (see
Figure 5 ) have additional
resistor and capacitor placements for loading.
NOTE: Operational amplifiers are sensitive to output capacitance
and may oscillate. In the event of oscillation, reduce output
capacitance by using shorter cables, or add a resistor in series
with the output.
FIGURE 4. INPUT STAGE (1/2) FIGURE 5. OUTPUT STAGE (1/2)
C
1
R
5
R
3
J2
J1
R
1
R
2
R10
R
12
R
6
R
9
R
4
DNP
DNP
DN
P
OPEN
DNP
10k 100k
100k
10k
0
VREF
IN+
IN-
OUTPUT
R
26
C
6
R
28
DNP
O
PEN
OPEN
0
FROM OUTPUT
Bill of Materials
DEVICE # DESCRIPTION COMMENTS
C2, C4 CAP, SMD, 1206, 1µF, 50V, 10%, X7R, ROHS Power Supply Decoupling
C3, C6 CAP, SMD, 0805, 0.1µF, 50V, 10%, X7R, ROHS Power Supply Decoupling
C5, C7 CAP, SMD, 0603, 0.01µF, 25V, 10%, X7R, ROHS Power Supply Decoupling
C1, C8, C9, C10, C11, C12 CAP, SMD, 0603, DNP-PLACE HOLDER, ROHS User selectable capacitors - not populated
D1 DIODE-SCHOTTKY BARRIER, SMD, SOT-23, 3P, 40V, ROHS Reverse Power Protection
U1 ISL70219ASEHF/PROTO, DUAL OP AMP, 10Ld. FLATPACK
R1, R2, R5, R7, R8, R9, R17, R20, R23,
R24 RESISTOR, SMD, 0603, 0.1%, MF, DNP PLACEHOLDER User selectable resistors - not populated
R3, R19, R21, R22 RES, SMD, 0603, 0 Ω , 1/10W,TF, ROHS 0 Ω user selectable resistors
R11, R14 RES, SMD, 0603, 100 Ω , 1/10W, 1%, TF, ROHS
R4, R6, R16, R18 RES, SMD, 0603, 10k Ω , 1/10W, 1%, TF, ROHS Gain resistors
R10, R12, R13, R15 RES, SMD, 0603, 100k Ω , 1/10W, 1%, TF, ROHS Gain resistors