AD694JNZ Analog Devices Inc, AD694JNZ Datasheet - Page 12

• Manufacturer Part Number: AD694JNZ
• Description: IC TRANSMITTER 4-20MA 16-DIP
• Manufacturer: Analog Devices Inc
• Type: Current Transmitterr

Specifications of AD694JNZ

• Input Type: Voltage
• Output Type: Voltage
• Current - Supply: 23mA
• Mounting Type: Through Hole
• Package / Case: 16-DIP (0.300", 7.62mm)
• Number Of Channels: 1
• Number Of Elements: 3
• Power Supply Requirement: Single
• Common Mode Rejection Ratio: 80dB
• Voltage Gain Db: 93.98dB
• Input Resistance: 5@24VMohm
• Input Offset Voltage: 0.5@24VmV
• Input Bias Current: 0.005@24V@-40C TO 85nA
• Single Supply Voltage (typ): 5/9/12/15/18/24/28V
• Dual Supply Voltage (typ): Not RequiredV
• Power Supply Rejection Ratio: 80dB
• Rail/rail I/o Type: No
• Single Supply Voltage (min): 4.5V
• Single Supply Voltage (max): 36V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 16
• Package Type: PDIP
• No. Of Amplifiers: 4
• Bandwidth: 300kHz
• Amplifier Output: Differential
• Cmrr: 90dB
• Supply Voltage Range: 4.5V To 36V, 12.5V To 36V
• Supply Current: 2mA
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Interface: -
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

AD694
The circuit shown, will convert a positive differential signal at
V
of 3 V to 8 V. The low end of the common-mode range is limited
by the AD708’s ability to pull down on R
plifier could be used instead to extend the common-mode range
down to about 1.5 V.
IN
to a 4–20 mA current. The circuit has common-mode range
S
. A single supply am-
Figure 15. Low Cost Sensor Transmitter
–12–
As shown, the circuit handles positive differential signals (V
positive). To handle bipolar differential signals (V
or negative), the reference pin of the in amp (Point C) must be
offset positively from the 2 V reference. For example, discon-
necting Point C from the 2 V reference and connecting it to a
3 V source would result in a V
volt differential input from the sensor.
A
of 1 V (or half scale) for a zero
IN
is positive
REV. B
IN