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MFG:ADI D/C:09
Part Number: AD5348
MFG: ADI
D/C: 09
Description: The AD5346/AD5347/AD53481 are octal 8-, 10-, and 12-bit DACs, operating from a 2.5 V to 5.5 V supply. ...
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AD5348
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DataSheet
General Description
AD5348 General Description
The AD5346/AD5347/AD53481 are octal 8-, 10-, and 12-bit DACs, operating from a 2.5 V to 5.5 V supply. These devices incorporate an on-chip output buffer that can drive the output to both supply rails, and also allow a choice of buffered or unbuffered reference input.
The AD5346/AD5347/AD5348 have a parallel interface. CS selects the device and data is loaded into the input registers on the rising edge of WR. A readback feature allows the internal DAC registers to be read back through the digital port. The GAIN pin on these devices allows the output range to be set at 0 V to VREF or 0 V to 2 × VREF.
Input data to the DACs is double-buffered, allowing simultaneous update of multiple DACs in a system using theLDAC pin.
An asynchronous CLR input is also provided, which resets the contents of the input register and the DAC register to all zeros. These devices also incorporate a power-on reset circuit that ensures that the DAC output powers on to 0 V and remains there until valid data is written to the device.
All three parts are pin compatible, which allows users to select the amount of resolution appropriate for their application without redesigning their circuit board.
AD5348 Maximum Ratings
VDD to GND 0.3 V to +7 V
Digital Input Voltage to GND 0.3 V to VDD + 0.3 V
Digital Output Voltage to GND 0.3 V to VDD + 0.3 V
Reference Input Voltage to GND 0.3 V to VDD + 0.3 V
VOUT to GND 0.3 V to VDD + 0.3 V
Operating Temperature Range
Industrial (B Version) 40°C to +105°C
Storage Temperature Range 65°C to +150°C
Junction Temperature 150°C
38-Lead TSSOP Package
Power Dissipation (TJ max − TA)/ JA mW
JA Thermal Impedance 98.3°C/W
JC Thermal Impedance 8.9°C/W
40-Lead LFCSP Package
Power Dissipation (TJ max − TA)/ JA mW
JA Thermal Impedance (3-layerboard) 29.6°C/W
Lead Temperature, Soldering (10 sec) 300°C
IR Reflow, Peak Temperature 220 °C
Digital Input Voltage to GND 0.3 V to VDD + 0.3 V
Digital Output Voltage to GND 0.3 V to VDD + 0.3 V
Reference Input Voltage to GND 0.3 V to VDD + 0.3 V
VOUT to GND 0.3 V to VDD + 0.3 V
Operating Temperature Range
Industrial (B Version) 40°C to +105°C
Storage Temperature Range 65°C to +150°C
Junction Temperature 150°C
38-Lead TSSOP Package
Power Dissipation (TJ max − TA)/ JA mW
JA Thermal Impedance 98.3°C/W
JC Thermal Impedance 8.9°C/W
40-Lead LFCSP Package
Power Dissipation (TJ max − TA)/ JA mW
JA Thermal Impedance (3-layerboard) 29.6°C/W
Lead Temperature, Soldering (10 sec) 300°C
IR Reflow, Peak Temperature 220 °C
AD5348 Features
AD5346: octal 8-bit DAC
AD5347: octal 10-bit DAC
AD5348: octal 12-bit DAC
Low power operation: 1.4 mA (max) @ 3.6 V
Power-down to 120 nA @ 3 V, 400 nA @ 5 V
Guaranteed monotonic by design over all codes
Rail-to-rail output range: 0 V to VREF or 0 V to 2 * VREF
Power-on reset to 0 V
Simultaneous update of DAC outputs via LDAC pin
Asynchronous CLR facility
Readback
Buffered/unbuffered reference inputs
20 ns WR time
38-lead TSSOP/6 mm * 6 mm 40-lead LFCSP packaging
Temperature range: 40°C to +105°C
AD5347: octal 10-bit DAC
AD5348: octal 12-bit DAC
Low power operation: 1.4 mA (max) @ 3.6 V
Power-down to 120 nA @ 3 V, 400 nA @ 5 V
Guaranteed monotonic by design over all codes
Rail-to-rail output range: 0 V to VREF or 0 V to 2 * VREF
Power-on reset to 0 V
Simultaneous update of DAC outputs via LDAC pin
Asynchronous CLR facility
Readback
Buffered/unbuffered reference inputs
20 ns WR time
38-lead TSSOP/6 mm * 6 mm 40-lead LFCSP packaging
Temperature range: 40°C to +105°C
AD5348 Typical Application
Portable battery-powered instruments
Digital gain and offset adjustment
Programmable voltage and current sources
Optical networking
Automatic test equipment
Mobile communications
Programmable attenuators
Industrial process control
Digital gain and offset adjustment
Programmable voltage and current sources
Optical networking
Automatic test equipment
Mobile communications
Programmable attenuators
Industrial process control
AD5348 Connection Diagram
AD5348
PDF/DataSheet Download
- Datasheet: AD5348
- File Size: 232798 KB
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