AD5737 Analog Devices, AD5737 Datasheet - Page 12

• Manufacturer Part Number: AD5737
• Description: Quad Channel, 12-Bit, Serial Input, 4-20mA Output DAC with Dynamic Power Control and HART Connectivity
• Manufacturer: Analog Devices

Specifications of AD5737

• Resolution (bits): 12bit
• Dac Settling Time: 15µs
• Max Pos Supply (v): +33V
• Single-supply: No
• Dac Type: Current Out
• Dac Input Format: Ser,SPI

AD5737
Pin No.
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
Mnemonic
IGATEC
NC
CHARTC
NC
AGND
I
NC
V
COMP
IGATED
CHARTD
NC
REFIN
REFOUT
R
R
EPAD
OUT_D
SET_D
SET_C
BOOST_D
DCDC_D
Description
Optional Connection for External Pass Transistor. Leave this pin unconnected when using the dc-to-dc
converter. For more information, see the External PMOS Mode section.
No Connect. Do not connect to this pin.
HART Input Connection for DAC Channel C. For more information, see the HART Connectivity section.
No Connect. Do not connect to this pin.
Ground Reference Point for Analog Circuitry. This pin must be connected to 0 V.
Current Output Pin for DAC Channel D.
No Connect. Do not connect to this pin.
Supply for Channel D Current Output Stage (see Figure 48). To use the dc-to-dc converter, connect this pin
as shown in Figure 55.
DC-to-DC Compensation Capacitor. Connect a 10 nF capacitor from this pin to ground. Used to regulate the
feedback loop of the Channel D dc-to-dc converter. Alternatively, if using an external compensation resistor,
place a resistor in series with a capacitor to ground from this pin. For more information, see the DC-to-DC
Converter Compensation Capacitors section and the AI
Optional Connection for External Pass Transistor. Leave this pin unconnected when using the dc-to-dc
converter. For more information, see the External PMOS Mode section.
HART Input Connection for DAC Channel D. For more information, see the HART Connectivity section.
No Connect. Do not connect to this pin.
External Reference Voltage Input.
Internal Reference Voltage Output. It is recommended that a 0.1 μF capacitor be placed between REFOUT
and REFGND.
An external, precision, low drift, 15 kΩ current setting resistor can be connected to this pin to improve the
I
An external, precision, low drift, 15 kΩ current setting resistor can be connected to this pin to improve the
I
Exposed Pad. The exposed paddle should be connected to AGND, or, alternatively, it can be left electrically
unconnected. It is recommended that the paddle be thermally connected to a copper plane for enhanced
thermal performance.
OUT_D
OUT_C
temperature drift performance. For more information, see the External Current Setting Resistor section.
temperature drift performance. For more information, see the External Current Setting Resistor section.
Rev. A | Page 12 of 44
CC
Supply Requirements—Slewing section.
Data Sheet