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AD694* PDF预览

AD694*

更新时间: 2024-10-27 23:27:23
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4?0 mA Transmitter

AD694* 数据手册

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AD694  
Model  
AD694JN/AQ/AR  
AD694BQ/BR  
Typ  
Min  
Typ  
Max  
Min  
Max  
Units  
BUFFER AMPLIFIER6  
Input Offset Voltage  
Initial Offset  
±150  
±2  
90  
؎500  
±3  
±50  
±2  
90  
؎500  
±3  
µV  
µV/°C  
dB  
TMIN to TMAX  
vs. Supply  
80  
80  
vs. Common Mode  
80  
90  
80  
90  
dB  
Trim Range  
؎2.5  
±4.0  
؎2.5  
±4.0  
mV  
Frequency Response  
Unity Gain, Small Signal  
Input Voluge Noise (0.1 Hz to 10 Hz)  
Open-Loop Gain  
300  
2
300  
2
kHz  
µV p-p  
VO = +10 V, RL 10 kΩ  
Output Voltage @ Pin 1, FB1  
Minimum Output Voltage  
Maximum Output Voltage  
50  
50  
V/mV  
1.0  
VS–2 V  
10  
1.0  
10  
mV  
V
VS–2.5 V  
VS–2.5 V VS–2 V  
NOTES  
1The single supply op amps of the AD694, lacking pull down current, may not reach 0.000 V at their outputs. For this reason, span, offset, and nonlinearity are  
specified with the input amplifiers operating in their linear range. The input voltage used for the tests is 5 mV to 2 V and 5 mV to 10 V for the two precalibrated  
input ranges. Span and zero accuracy are tested with the buffer amplifier configured as a follower.  
2Offset at 4 mA out and 0 mA out are extrapolated to 0.000 V input from measurements made at 5 mV and at full scale. See Note 1.  
3Nonlinearity is specified as the maximum deviation of the output, as a % of span, from a straight line drawn through the endpoints of the transfer function.  
4Voltage reference drift guaranteed by the Box Method. The voltage reference output over temperature will fall inside of a box whose length is determined by the  
temperature range and whose height is determined by the maximum temperature coefficient multiplied by the temperature span in degrees C.  
5Devices tested at these temperatures with a pass transistor. Allowable temperature range of operation is dependent upon internal power dissipation. Absolute  
maximum junction and case temperature should not be exceeded. See section: “Power Dissipation Considerations.”  
6Buffer amplifier specs for reference. Buffer amplifier offset and drift already included in Span and Zero accuracy specs above.  
Specifications subject to change without notice.  
ABSOLUTE MAXIMUM RATINGS  
Transistor Count: . . . . . . . . . . . . . . . . . . . . .75 Active Devices  
Substrate Connection: . . . . . . . . . . . . . . . . . . . . to Com, Pin 5  
Thermal Characteristics:  
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +36 V  
VS to IOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +36 V  
Input Voltage, (Either Input Pin 2 or 3) . . . . .0.3 V to +36 V  
Reference Short Circuit to Common . . . . . . . . . . . . Indefinite  
Alarm Voltage, Pin 10 . . . . . . . . . . . . . . . . . . . . . . . . . . +36 V  
4 mA Adj, Pin 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +1 V  
4 mA On/Off, Pin 9 . . . . . . . . . . . . . . . . . . . . . . . . 0 V to 36 V  
Storage Temperature Range  
Plastic (N) Package: θJC = 50°C/Watt  
θCA (Still Air) = 85°C/Watt  
Cerdip (Q) Package: θJC = 30°C/Watt  
θCA (Still Air) = 70°C/Watt  
Plastic (R) Package: θJC = 27°C/Watt  
θCA (Still Air) = 73°C/Watt  
AD694Q . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to +150°C  
AD694N, R . . . . . . . . . . . . . . . . . . . . . . . –65°C to +125°C  
Lead Temperature, 10 sec Soldering . . . . . . . . . . . . . . +300°C  
Maximum Junction Temperature . . . . . . . . . . . . . . . . . +150°C  
Maximum Case Temperature  
ESD Susceptibility  
All pins are rated for a minimum of 4000 V protection, except  
for Pins 2, 3 and 9 which are rated to survive a minimum of  
1500 V. ESD testing conforms to Human Body Model. Always  
practice ESD prevention.  
Plastic Package (N, R) . . . . . . . . . . . . . . . . . . . . . . . +125°C  
Cerdip Package (Q) . . . . . . . . . . . . . . . . . . . . . . . . . +125°C  
No pin, other than IOUT (11) and ±Sig (2), (3) as noted, may be permitted to become more negative than Com (5). No pin may be  
permitted to become more positive than VS (13).  
PIN CONFIGURATION (N, R, Q PACKAGE)  
ORDERING GUIDE  
Temperature  
Range  
Package  
Option*  
Model  
AD694JN  
AD694AQ  
AD694AR  
AD694BQ  
AD694BR  
0°C to +70°C  
N-16  
Q-16  
R-16  
Q-16  
R-16  
–40°C to +85°C  
–40°C to +85°C  
–40°C to +85°C  
–40°C to +85°C  
*N = Plastic DIP; Q = Cerdip, R = SOIC.  
REV. A  
–3–  

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