AD694BR Analog Devices Inc, AD694BR Datasheet - Page 3

• Manufacturer Part Number: AD694BR
• Description: 4-20mA Transceiver
• Manufacturer: Analog Devices Inc
• Type: Current Transmitterr

Specifications of AD694BR

• Amplifier Case Style: SOIC
• No. Of Pins: 16
• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Package / Case: 16-SOIC
• Rohs Status: RoHS non-compliant
• Input Type: Voltage
• Output Type: Voltage
• Current - Supply: 23mA
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Interface: -
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Model
BUFFER AMPLIFIER
NOTES
1
2
3
4
5
6
Specifications subject to change without notice.
Specifications shown in boldface are tested on all production units at final electrical test. Results from those tests are used to calculate outgoing quality levels.
All min and max specifications are guaranteed, although only those shown in boldface are tested on all production units.
REV. B
No pin, other than I
permitted to become more positive than V
The 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
Offset 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.
Nonlinearity 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.
Voltage 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
Devices tested at these temperatures with a pass transistor. Allowable temperature range of operation is dependent upon internal power dissipation. Absolute
Buffer amplifier specs for reference. Buffer amplifier offset and drift already included in Span and Zero accuracy specs above.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 V
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
Lead Temperature, 10 sec Soldering . . . . . . . . . . . . . . . 300°C
Maximum Junction Temperature . . . . . . . . . . . . . . . . . 150°C
Maximum Case Temperature
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.
temperature range and whose height is determined by the maximum temperature coefficient multiplied by the temperature span in degrees C.
maximum junction and case temperature should not be exceeded. See section: “Power Dissipation Considerations.”
Input Offset Voltage
Frequency Response
Input Voltage Noise (0.1 Hz to 10 Hz)
Open-Loop Gain
Output Voltage @ Pin 1, FB
S
AD694Q . . . . . . . . . . . . . . . . . . . . . . . . . .–65°C to +150°C
AD694N, R . . . . . . . . . . . . . . . . . . . . . . . .–65°C to +125°C
Plastic Package (N, R) . . . . . . . . . . . . . . . . . . . . . . . . 125°C
Cerdip Package (Q) . . . . . . . . . . . . . . . . . . . . . . . . . . 125°C
to I
Initial Offset
T
vs. Supply
vs. Common Mode
Trim Range
Unity Gain, Small Signal
V
Minimum Output Voltage
Maximum Output Voltage
O
MIN
OUT
PIN CONFIGURATION (N, R, Q PACKAGE)
= +10 V, R
to T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 V
MAX
L
OUT
≥ 10 kΩ
6
(11) and ± Sig (2), (3) as noted, may be permitted to become more negative than Com (5). No pin may be
1
S
(13).
Min
80
80
V
S
2.5
–2.5 V
AD694JN/AQ/AR
Typ
± 150
± 2
90
90
± 4.0
300
2
50
1.0
V
S
–2 V
–3–
Model
AD694JN
AD694AQ
AD694AR
AD694BQ
AD694BR
*N = Plastic DIP; Q = CERDIP, R = SOIC
Transistor Count: . . . . . . . . . . . . . . . . . . . . . 75 Active Devices
Substrate Connection: . . . . . . . . . . . . . . . . . . . . to Com, Pin 5
Thermal Characteristics:
Plastic (N) Package: θ
Cerdip (Q) Package: θ
Plastic (R) Package: θ
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.
Max
± 3
10
500
Min
80
80
V
S
2.5
–2.5 V
ORDERING GUIDE
θ
θ
θ
AD694BQ/BR
JC
CA
JC
CA
JC
CA
= 50°C/Watt
= 30°C/Watt
= 27°C/Watt
Temperature
Range
0°C to 70°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
(Still Air) = 85°C/Watt
(Still Air) = 70°C/Watt
(Still Air) = 73°C/Watt
Typ
± 50
± 2
90
90
± 4.0
300
2
50
1.0
V
S
–2 V
Max
± 3
10
500
Unit
µV
µV/°C
dB
dB
mV
kHz
µV p-p
V/mV
mV
V
AD694
Package
Option*
N-16
Q-16
R-16
Q-16
R-16