MAX5724
Ultra-Small, Octal-Channel, 8-/10-/12-Bit Buffered Output DACs with Internal Reference and SPI Interface
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Feature-Rich 8-Channel DAC Family Offered in a 5.75mm2 WLP Footprint
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Features
- Eight High-Accuracy DAC Channels
- 12-Bit Accuracy Without Adjustment
- ±1 LSB INL Buffered Voltage Output
- Guaranteed Monotonic Over All Operating Conditions
- Independent Mode Settings for Each DAC
- Three Precision Selectable Internal References
- 2.048V, 2.500V, or 4.096V
- Internal Output Buffer
- Rail-to-Rail Operation with External Reference
- 4.5µs Settling Time
- Outputs Directly Drive 2kΩ Loads
- Small 6.5mm × 4.4mm 20-Pin TSSOP or Ultra-Small 2.5mm × 2.3mm 20-Bump WLP Package
- Wide 2.7V to 5.5V Supply Range
- Separate 1.8V to 5.5V VDDIO Power-Supply Input
- Fast 50MHz 4-Wire SPI/QSPI/MICROWIRE/DSP-Compatible Serial Interface
- Programmable Interface Watchdog Timer
- Pin-Selectable Power-On-Reset to Zero-Scale or Midscale DAC Output
- Active-Low LDAC and Active-Low CLR for Asynchronous DAC Control
- Three Selectable Power-Down Output Impedances
- 1kΩ, 100kΩ, or High Impedance
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The MAX5723/MAX5724/MAX5725 8-channel, low-power, 8-/10-/12-bit, voltage-output digital-to-analog converters (DACs) include output buffers and an internal 3ppm/°C reference that is selectable to be 2.048V, 2.500V, or 4.096V. The MAX5723/MAX5724/MAX5725 accept a wide supply voltage range of 2.7V to 5.5V with extremely low power (6mW) consumption to accommodate most low-voltage applications. A precision external reference input allows rail-to-rail operation and presents a 100kΩ (typ) load to an external reference.
The MAX5723/MAX5724/MAX5725 have a fast 50MHz, 4-wire SPI/QSPI™/MICROWIRE/DSP-compatible serial interface that operates at clock rates up to 50MHz. The DAC output is buffered and has a low supply current of less than 250µA per channel and a low offset error of ±0.5mV (typ). On power-up, the MAX5723/MAX5724/MAX5725 reset the DAC outputs to zero or midscale based on the status of M/active-low Z logic input, providing flexibility for a variety of control applications. The internal reference is initially powered down to allow use of an external reference. The MAX5723/MAX5724/MAX5725 allow simultaneous output updates using software LOAD commands or the hardware load DAC logic input (active-low LDAC).
The MAX5723/MAX5724/MAX5725 feature a programmable watchdog function which can be enabled to monitor the I/O interface for activity and integrity.
A clear logic input (active-low CLR) allows the contents of the CODE and the DAC registers to be cleared asynchronously and simultaneously sets the DAC outputs to the programmable default value. The MAX5723/MAX5724/MAX5725 are available in a 20-pin TSSOP and an ultra-small, 20-bump WLP package and are specified over the -40°C to +125°C temperature range.
Applications
- Automatic Tuning and Optical Control
- Gain and Offset Adjustment
- Portable Instrumentation
- Power Amplifier Control and Biasing
- Process Control and Servo Loops
- Programmable Voltage and Current Sources
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MAX5724
Documentation
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Documentation
Software & Part Ecosystem
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Ultra-Small, Octal Channel, 8-/10-/12-Bit Buffered Output DACs with Internal Reference and I2C Interface |
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Ultra-Small, Quad-Channel, 8-/10-/12-Bit Buffered Output DACs with Internal Reference and SPI Interface |
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Single-Supply Voltage Output D/A Converters4 |
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PRODUCTION |
Ultra-Small, Octal Channel, 8-/10-/12-Bit Buffered Output DACs with Internal Reference and I2C Interface |
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RECOMMENDED FOR NEW DESIGNS |
Ultra-Small, Octal Channel, 8-/10-/12-Bit Buffered Output DACs with Internal Reference and I2C Interface |
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PRODUCTION |
Ultra-Small, Quad-Channel, 8-/10-/12-Bit Buffered Output DACs with Internal Reference and SPI Interface |
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PRODUCTION |
Ultra-Small, Quad-Channel, 8-/10-/12-Bit Buffered Output DACs with Internal Reference and SPI Interface |
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Evaluation Kits 2
MAX5725AEVKIT
Evaluation Kit for the MAX5723, MAX5724, MAX5725A, and MAX5725B
Features and Benefits
- Wide Input Supply Range: 2.7V to 5.5V
- Independent Voltage for Digital I/O: 1.8V to 5.5V
- Demonstrates 4.4µs (typ) Settling Time of Buffered Output
- Precision Selectable Internal References Supporting 2.048V, 2.500V, and 4.096V
- Demonstrates User-Supplied External Reference
- Three Selectable Output Impedance (Termination) in Power-Down Mode
- 1kΩ, 100kΩ, or High Impedance
- Power-Up Reset to Midscale or Zero
- Supports Entire Family of Octal SPI/I²C DACs
- Windows XP-, Windows Vista-, and Windows 7-Compatible Software
- USB-Powered (Cable Included)
- Demonstrates Configurable Interface Watchdog Timer
- Fully Assembled and Tested with Proven PCB Layout
Product Detail
MAX5725SYS1
Evaluation System for the MAX5725
Product Detail
The MAX5725 evaluation system demonstrates the MAX5725 ultra small, 8-channel, low-power, 12-bit buffered output DAC with internal reference. The MAX5725 peripheral module (PMod) and the USBPMBP2 module form a system (MAX5725SYS1#). Windows 7/8/10-compatible software provides a user-friendly interface that demonstrates features of the MAX5725.
The MAX5725 peripheral module comes installed with the 20-bump WLP package, MAX5725AWP+.
Applications
- Automatic Tuning and Optical Control
- Gain and Offset Adjustment
- Portable Instrumentation
- Power Amplifier Control and Biasing
- Process Control and Servo Loops
- Programmable Voltage and Current Sources
Tools & Simulations 1
IBIS Model 1
IBIS Model
