ISL26320_14 Datasheet, PDF (2/23 Pages) Intersil Corporation – 12-bit, 250kSPS Low-power ADCs with Single-ended and Differential Inputs and Multiple Input Channels

ISL26320, ISL26321, ISL26322, ISL26323, ISL26324, ISL26325, ISL26329
Application Block Diagram
I²C Bus
ANALOG SIGNAL INPUT MODULEs
Pressure/Strain Gage Sensor
VREF
DCP
Precision
Amps
Gain
Amplifiers
+V
Precision
Amps
-V
Active
Filters
+V
Precision
Amps
-V
Temperature Sensor
VREF
DCP
Thermistor
+V
Precision
Amps
-V
Thermocouple
ISO-Thermal
Block
+V
Precision
Amps
-V
+V
Active
Precision ^Filters
Amps
-V
+V Active
Filters
Precision
Amps
-V
Differential
Pressure
Transducer
Iout
w/ ¥
Extractor
Flow Sensor
Loop Supply
Gain
Amplifiers
+V
4 -20mA
Vin
Precision
Amps
-V
Active
Filters
+V
Precision
Amps
-V
MUX and ADC
M
ADC
U
X
VREF
RS-485
μC
RTC
V
System
Power
V
LDO’s
Switching
Regulator
POWER
Voltage
Supervisor &
Sequencers
Core &
I/O Power
Switching
Controller
Buffer, Filters,
Actuators
Span Drivers
Motors +V
+V
+V
Control loops
M
Precision
Amps
Precision
Amps
U
X
DAC
-V
-V
VREF
-V
ANALOG SIGNAL OUTPUT MODULE
RS-485
RTC RS-232
Master
μC
LDO ^Switching
Regulators
High Voltage Input Rail ~24V
Single Ended
Controller
Isolator
Isolated Power
Pin-Compatible Family
MODEL
ISL26310
ISL26311
ISL26312
ISL26313
ISL26314
ISL26315
ISL26319
ISL26320
ISL26321
ISL26322
ISL26323
ISL26324
ISL26325
ISL26329
RESOLUTION
(Bits)
12
12
12
12
12
12
12
12
12
12
12
12
12
12
SPEED
(kHz)
125
125
125
125
125
125
125
250
250
250
250
250
250
250
ANALOG
INPUT
Differential
Single-Ended
Differential
Single-Ended
Differential
Single-Ended
Single-Ended
Differential
Single-Ended
Differential
Single-Ended
Differential
Single-Ended
Single-Ended
INPUT
CHANNELS
1
1
2
2
4
4
8
1
1
2
2
4
4
8
2
FN8273.1
September 5, 2013