ISL12022M-R5421 INTERSIL [Intersil Corporation], ISL12022M-R5421 Datasheet - Page 20

• Manufacturer Part Number: ISL12022M-R5421
• Description: Providing high-performance solutions for every link in the signal chain
• Manufacturer: INTERSIL [Intersil Corporation]

20
Intersil Signal Path Products  2012  www.intersil.com
Digital Potentiometers
Digitally Programmable
• Voltage Amplifier
• Filter
• Voltage Reference
• Voltage Regulator
DCPs Enable Digitally Controlled Analog Signal Processing
DCPs allow for digital flexibility in an analog circuit. DCPs provide a link between the digital and analog domains in
the system, allowing repeatable control and configuration of analog circuitry. This approach is typically more power-
efficient than computationally intensive digital signal processing. For more information, please see AN133.
V
S
Lowest Voltage
Smaller Package
Low Pass Filter
128-tap and 256-tap I
and SPI Volatile Digital
Potentiometers
Frequency
Analog Voltage
Digital Voltage
Controls Passband
Specification
Controls
Programmable Filter and Gain Block
Consumption
Single
Quad
Low Current
Type
Dual
Cutoff
Also offered in leaded packages for easy design-in
R
Gain
ISL23315,
ISL23415,
ISL23318,
ISL23325,
ISL23425,
ISL23328,
ISL23345,
ISL23445,
ISL23348,
ISL23418
ISL23428
ISL23448
Part #
C
2.5µA - 1CH
1.7V to 5.5V
1.2V to 5.5V
3µA - 2CH
5µA - 4CH
Intersil
R1
Non-Inverting Filter
µTQFN (2.1x1.6mm)
µTQFN (2.6x1.8mm)
+
-
QFN (3x4mm)
R2
Up to 2x more power
Intersil
voltage, lowest is
Same as analog
Competition
consumption
1.8V to 5.5V
2.7V to 5.5V
1.8V
V
O
SC-70 (2x2.1mm)
V
Competition
QFN (4x4mm)
QFN (4x4mm)
S
Frequency
Operational when battery
starts draining.
Eliminate level shifter for I
SPI when µC has low voltage
I/O pins.
Drains up to 50% less battery
power.
Controls
Tunable Bandpass Filter IGMF Model
Center
V
L
R1
Programmable Inverting Amplifier
C1
Benefit
R1
2
GND
20% Smaller
48% Smaller
25% Smaller
C
V
R2
CC
Benefit
R2
C2
V
2
V
C/
H
W
Adjust Offset, Gain,
R3
DC Signal Control
+
-
-5V
+
5V
-
Volatile: ISL233x5, ISL234x5, ISL233x8, ISL234x8
V
V
O
O
½ ISL23325
ISL23315
Or
Vref Adjustment
Adjust Both Charge Current and Input
Current on Portable Devices
ISL23415
V
SHUTDOWN
[≥(V
IN
(UNREG)
ERROR
Trimmable Voltage Reference
O
i.e. ISL21009
V
Temp
+ IV)]
V
IN
(with trim)
REF
Programmable Voltage Regulator
Vref
GND
RH
RL
USB
for USB Input Limit
DCP1
Trim
V
OUT
I Path Switching
RW
Battery Charger
Regulator
Controls Output
Voltage
R2
R1
100kΩ
Voltage
ISL28114
+
Trim System Errors
V
_
W
(10kΩ)
Bat
Sys
V
R
GND
H
V
Charging Rate Limit
L
LTE Sys
Battery
DCP 2
V
V
O
REF_M
V
O
½ ISL23325
ISL23315
(Reg)
Or