AD5541 Datasheet PDF - Analog Devices
| Part Number | AD5541 | |
| Description | 5 V/ Serial-Input Voltage-Output/ 16-Bit DACs | |
| Manufacturers | Analog Devices | |
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a
5 V, Serial-Input
Voltage-Output, 16-Bit DACs
AD5541/AD5542
FEATURES
Full 16-Bit Performance
5 V Single Supply Operation
Low Power
Short Settling Time
Unbuffered Voltage Output Capable of Driving 60 k⍀
Loads Directly
SPI™/QSPI™/MICROWIRE™-Compatible Interface
Standards
Power-On Reset Clears DAC Output to 0 V (Unipolar
Mode)
Schmitt Trigger Inputs for Direct Optocoupler Interface
APPLICATIONS
Digital Gain and Offset Adjustment
Automatic Test Equipment
Data Acquisition Systems
Industrial Process Control
GENERAL DESCRIPTION
The AD5541 and AD5542 are single, 16-bit, serial input,
voltage output DACs that operate from a single 5 V ± 10%
supply.
The AD5541 and AD5542 utilize a versatile 3-wire interface that
is compatible with SPI, QSPI, MICROWIRE, and DSP inter-
face standards.
These DACs provide 16-bit performance without any adjust-
ments. The DAC output is unbuffered, which reduces power
consumption and offset errors contributed to by an output buffer.
The AD5542 can be operated in bipolar mode generating a
± VREF output swing. The AD5542 also includes Kelvin sense
connections for the reference and analog ground pins to reduce
layout sensitivity.
The AD5541 and AD5542 are available in an SO package.
FUNCTIONAL BLOCK DIAGRAMS
AD5541
REF
VDD
16-BIT DAC
VOUT
CS
DIN
SCLK
CONTROL
LOGIC
16-BIT DATA LATCH
SERIAL INPUT REGISTER
AGND
REFF
REFS
CS
LDAC
SCLK
DIN
AD5542
RINV
CONTROL
LOGIC
DGND
VDD
RFB
16-BIT DAC
16-BIT DATA LATCH
SERIAL INPUT REGISTER
DGND
RFB
INV
VOUT
AGNDF
AGNDS
PRODUCT HIGHLIGHTS
1. Single Supply Operation.
The AD5541 and AD5542 are fully specified and guaranteed
for a single 5 V ± 10% supply.
2. Low Power Consumption.
These parts consume typically 1.5 mW with a 5 V supply.
3. 3-Wire Serial Interface.
4. Unbuffered output capable of driving 60 kΩ loads.
This reduces power consumption as there is no internal buffer
to drive.
5. Power-On Reset circuitry.
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corporation.
REV. A
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 1999
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Mnemonic
VOUT
AGND
REF
CS
SCLK
DIN
DGND
VDD
Pin No.
1
2
3
4
5
6
7
8
AD5541/AD5542
AD5541 PIN FUNCTION DESCRIPTIONS
Description
Analog Output Voltage from the DAC.
Ground Reference Point for Analog Circuitry.
This is the voltage reference input for the DAC. Connect to external 2.5 V reference.
Reference can range from 2 V to VDD.
This is a logic input signal. The chip select signal is used to frame the serial data input.
Clock Input. Data is clocked into the input register on the rising edge of SCLK. Duty cycle
must be between 40% and 60%.
Serial Data Input. This device accepts 16-bit words. Data is clocked into the input register on
the rising edge of SCLK.
Digital Ground. Ground reference for digital circuitry.
Analog Supply Voltage, 5 V ± 10%.
AD5541 PIN CONFIGURATION
SOIC
AD5542 PIN CONFIGURATION
SOIC
VOUT 1
8 VDD
AGND 2 AD5541 7 DGND
TOP VIEW
REF 3 (Not to Scale) 6 DIN
CS 4
5 SCLK
RFB 1
14 VDD
VOUT 2
13 INV
AGNDF
AGNDS
REFS
3 12 DGND
AD5542
4 TOP VIEW 11 LDAC
5 (Not to Scale) 10 DIN
REFF 6
CS 7
9 NC
8 SCLK
NC = NO CONNECT
Mnemonic
RFB
VOUT
AGNDF
AGNDS
REFS
REFF
CS
SCLK
NC
DIN
LDAC
DGND
INV
VDD
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
AD5542 PIN FUNCTION DESCRIPTIONS
Description
Feedback Resistor. In bipolar mode connect this pin to external op amp output.
Analog Output Voltage from the DAC.
Ground Reference Point for Analog Circuitry (Force).
Ground Reference Point for Analog Circuitry (Sense).
This is the voltage reference input (sense) for the DAC. Connect to external 2.5 V reference.
Reference can range from 2 V to VDD.
This is the voltage reference input (force) for the DAC. Connect to external 2.5 V reference.
Reference can range from 2 V to VDD.
This is a logic input signal. The chip select signal is used to frame the serial data input.
Clock input. Data is clocked into the input register on the rising edge of SCLK. Duty cycle
must be between 40% and 60%.
No Connect.
Serial Data Input. This device accepts 16-bit words. Data is clocked into the input register on
the rising edge of SCLK.
LDAC Input. When this input is taken low, the DAC register is simultaneously updated with
the contents of the input register.
Digital Ground. Ground reference for digital circuitry.
Connected to the Internal Scaling Resistors of the DAC. Connect INV pin to external op amps
inverting input in bipolar mode.
Analog Supply Voltage, 5 V ± 10%.
REV. A
–5–
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for AD5541 electronic component. |
| Information | Total 12 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ AD5541.PDF Datasheet ] | |
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