Maxim > Products > Digital-to-Analog Converters > MAX5550

MAX5550

Dual, 10-Bit, Programmable, 30mA High-Output-Current DAC

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX5550 dual, 10-bit, digital-to-analog converter (DAC) features high-output-current capability. The MAX5550 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 MAX5550 typically consumes 1.5mA per DAC in normal operation and less than 1µA (max) in shutdown mode. The MAX5550 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 MAX5550. The maximum programmable output current value is set using software and an adjustment resistor. The MAX5550 is available in a (3mm × 3mm) 16-pin thin QFN package, and is specified over the extended (-40°C to +85°C) temperature range.

Data Sheet

Download	Rev 2	(PDF, 436kB)
E-Mail

An evaluation kit is available: MAX5550EVKIT

Key Features

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 x 3mm) Thin QFN Package
Programmable Output Current Range Set by Software and Adjustment Resistor

Applications/Uses

PIN Diode Biasing
RF Attenuator Control
VCO Tuning

Key Specifications:

Precision DACs (4-12 Bits)

Part Number

Resolution
(bits)

Channels

Output Type

Reference

INL
(±LSB)

Interface

Supply Range
(V)

Oper. Temp.
(°C)

Budgetary Price

max

min

max

See Notes

MAX5550

Current- Buffered

Int.

Serial - I²C

Serial - SPI

2.7

5.25

-40 to +85

$3.37 @1k

See All Precision DACs (4-12 Bits) (268)

Pricing 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.

Diagram

Functional Block Diagram

Application Notes

Application Note 3990		Current-Source DAC with PIN Diode Provides RF Attenuation and Thermal Compensation
Tutorial 4025		DACs vs. Digital Potentiometers: Which Is Right for My Application?
Tutorial 4294		Differential Gain and Phase—Why Measure It, if You Cannot See It?
Tutorial 4993		Reduce the Chances of Human Error: Part 2, Super Amps and Filters for Analog Interface

Reliability Reports

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Software/Models

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Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX5550ETE			Active	TQFN;16 pin;9.6 mm² Outline Drawing:21-0136 (PDF) Land Pattern: 90-0033 (PDF) Use pkgcode/variation: T1633F-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX5550ETE+			Active	TQFN;16 pin;9.6 mm² Outline Drawing:21-0136 (PDF) Land Pattern: 90-0033 (PDF) Use pkgcode/variation: T1633F+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5550ETE+T			Active	TQFN;16 pin;9.6 mm² Outline Drawing:21-0136 (PDF) Land Pattern: 90-0033 (PDF) Use pkgcode/variation: T1633F+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5550ETE-T			Active	TQFN;16 pin;9.6 mm² Outline Drawing:21-0136 (PDF) Land Pattern: 90-0033 (PDF) Use pkgcode/variation: T1633F-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* 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.

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Evaluation Kits

MAX5550EVKIT

Evaluation Kit for the MAX5550 and MAX5548

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