AD8214 Datasheet, PDF (1/16 Pages) Analog Devices – High Voltage Threshold Detector

FEATURES
Input-to-output response: <100 ns
High input common-mode voltage range
Operating: 5 V to 65 V
Survival: 0 V to 68 V
Current output
Hysteresis: 10 mV
Integrated 2.4 V regulator
Wide operating temperature range: –40°C to +125°C
8-lead MSOP package
APPLICATIONS
Overcurrent protection
Motor controls
Transmission controls
Diesel injection controls
DC-to-DC converters
Power supplies
Batteries
GENERAL DESCRIPTION
The AD8214 is a fast, high common-mode voltage threshold
detector, which operates with a single supply of 5 V to 65 V.
Internally the AD8214 features a fast comparator that is
optimized for high side operation. It also includes a stable
2.4 V series regulator, which is referenced with respect to the
supply voltage. The purpose of the regulator is to provide
power to the internal electronics, and set an input comparison
threshold below the supply voltage. The inputs of the AD8214
may be operated at, slightly above, or below the power supply.
The differential voltage range between the inputs of the
AD8214 is 500 mV.
The device features a current output. This current is <100 nA
when –IN > +IN and 1 mA when +IN > –IN. The input
High Voltage
Threshold Detector
AD8214
FUNCTIONAL BLOCK DIAGRAM
V_S 1
+IN ²
–IN 8
5 _OUT
2.4V
REGULATOR
V_REG 3
6
GND
Figure 1.
voltages are referenced to the supply voltage, as is the
internal 2.4 V regulator. The input-to-output response time
is typically <100 ns.
As the output switches from low to high, a small hysteresis
(10 mV) is activated to minimize the effects of noise in the
system, and prevent any false state conditions.
The AD8214 is available in an 8-lead MSOP package. The
operating temperature range is –40°C to +125°C, making it
ideal for industrial, consumer, and automotive applications.
Rev. 0
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