AD652
ABSOLUTE MAXIMUM RATINGS
Table 2.
Stresses above those listed under Absolute Maximum Ratings
Parameter
Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
Total Supply Voltage +VS to −VS
Maximum Input Voltage (Figure 6)
36 V
36 V
Maximum Output Current
(Open Collector Output)
ꢀ0 mA
Amplifier Short-Circuit to Ground
Storage Temperature Range: CERDIP
Storage Temperature Range: PLCC
Indefinite
−6ꢀ°C to +±ꢀ0°C
−6ꢀ°C to +±ꢀ0°C
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on
the human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
Table 3. Pin Configurations
DEFINITIONS OF SPECIFICATIONS
Pin No.
Q-16 Package
P-20A Package
NC
Gain Error
±
+VS
2
3
4
ꢀ
6
7
8
9
±0
±±
±2
±3
±4
±ꢀ
±6
±7
±8
±9
20
TRIM
TRIM
+VS
NC
The gain of a voltage-to-frequency converter is the scale factor
setting that provides the nominal conversion relationship, e.g.,
1 MHz full scale. The gain error is the difference in slope
between the actual and ideal transfer functions for the V-F
converter.
OP AMP OUT
OP AMP “−“
OP AMP “+”
±0 VOLT INPUT
−VS
OP AMP OUT
OP AMP “−“
OP AMP “+”
ꢀ VOLT INPUT
±0 VOLT INPUT
8 VOLT INPUT
OPTIONAL ±0 V INPUT
−VS
Linearity Error
COS
The linearity error of a V-F is the deviation of the actual
transfer function from a straight line passing through the
endpoints of the transfer function.
CLOCK INPUT
FREQ OUT
DIGITAL GND
ANALOG GND
COMP “−“
COMP “+”
COMP REF
COS
CLOCK INPUT
FREQ OUT
DIGITAL GND
ANALOG GND
COMP “−“
COMP “+”
NC
Gain Temperature Coefficient
The gain temperature coefficient is the rate of change in full-
scale frequency as a function of the temperature from +25°C to
TMIN or TMAX
.
COMP REF
Rev. C | Page ꢀ of 28
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