The MAX5548 dual, 8-bit, digital-to-analog converter (DAC) features high-output-current capability. The MAX5548 sources up to 30mA per DAC making it ideal for PIN diode biasing applications. Outputs can also be paralleled for high-current applications (up to 60mA typ). Operating from a single +2.7V to +5.25V supply, the MAX5548 typically consumes 1.5mA per DAC in normal operation and less than 1µA (max) in shutdown mode. The MAX5548 also features low output leakage current in shutdown mode (±1µA max) that is essential to ensure that the external PIN diodes are off.
Additional features include an integrated +1.25V bandgap reference, and a control amplifier to ensure high accuracy and low-noise performance. A separate reference input (REFIN) allows for the use of an external reference source, such as the MAX6126, for improved gain accuracy. A pin-selectable I²C-/SPI™-compatible serial interface provides optimum flexibility for the MAX5548. The programmable output current's maximum value is set using software and an adjustment resistor.
The MAX5548 is available in a 3mm × 3mm, 16-pin, thin QFN package, and is specified over the extended (-40°C to +85°C) temperature range.
Key Features
Applications/Uses
Pin-Selectable I²C- or SPI-Compatible Interface
Guaranteed Low Output Leakage Current in Shutdown (±1µA max)
Guaranteed Monotonic Over Extended Temperature Range
Dual Outputs for Balanced Systems
Current Outputs Source Up to 30mA Per DAC
Parallelable Outputs for 60mA Applications
Output Stable with RF Filters
Internal or External Reference Capability
Digital Output (DOUT) Available for Daisy Chaining in SPI Mode
+2.7V to +5.25V Single-Supply Operation
16-Pin (3mm × 3mm) Thin QFN Package
Programmable Output Current Range Set by Software and Adjustment Resistor
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
Devices:
1-4
of
4
MAX5548
Free Sample
Buy
Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
Temp
RoHS/Lead-Free? Materials Analysis
MAX5548ETE+
THIN QFN;16 pin;
Dwg: 21-0136I (PDF)
Use pkgcode/variation: T1633F+3*
Download
E-Mail
