Maxim > Products > Digital-to-Analog Converters > MAX5138, MAX5139

MAX5138, MAX5139

Low-Power, Single, 16-/12-Bit, Buffered Voltage-Output DACs

Industry's Smallest 16-Bit DACs with Pin-Programmable Zero or Midscale Power-Up

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX5138/MAX5139 are a family of single-channel pin-compatible and software-compatible 16-bit and 12-bit DACs. The MAX5138/MAX5139 are low-power, 16-bit/12-bit, buffered voltage-output, high-linearity DACs. They use a precision internal reference or a precision external reference for rail-to-rail operation. The MAX5138/MAX5139 accept a wide +2.7V to +5.25V supply-voltage range to accommodate most low-power and low-voltage applications. These devices accept a 3-wire SPI™-/QSPI™-/MICROWIRE™-/DSP-compatible serial interface to save board space and reduce the complexity of optically isolated and transformer-isolated applications. The digital interface’s double-buffered hardware and software active-low LDAC provide simultaneous output update. The serial interface features a active-low READY output for easy daisy-chaining of several MAX5138/MAX5139 devices and/or other compatible devices. The MAX5138/MAX5139 include a hardware input to reset the DAC outputs to zero or midscale upon power-up or reset, providing additional safety for applications that drive valves or other transducers that need to be off during power-up. The high linearity of the DACs makes these devices ideal for precision control and instrumentation applications. The MAX5138/MAX5139 are available in an ultra-small (3mm x 3mm), 16-pin TQFN package and are specified over the -40°C to +105°C extended industrial temperature range.

Data Sheet

Download	Rev 1	(PDF, 360kB)
E-Mail

An evaluation kit is available: MAX5138EVKIT

Key Features

16-/12-Bit Resolution in a 3mm x 3mm, 16-Pin TQFN Package
Hardware-Selectable on Power-Up or Reset-to-Zero/Midscale DAC Output
Double-Buffered Input Registers
Active-Low LDAC Asynchronously Updates DAC Output
Active-Low READY Facilitates Daisy Chaining
High-Performance 10ppm/°C Internal Reference
Guaranteed Monotonic Over All Operating Conditions
Wide +2.7V to +5.25V Supply Range
Rail-to-Rail Buffered Output Operation
Low Gain Error (Less Than ±0.5% FS) and Offset (Less Than ±10mV)
30MHz 3-Wire SPI-/QSPI-/MICROWIRE-/DSP-Compatible Serial Interface
CMOS-Compatible Inputs with Hysteresis
Low Power Consumption (I_SHDN = 2µA max)

Applications/Uses

Automatic Test Equipment
Automatic Tuning
Communication Systems
Data Acquisition
Gain and Offset Adjustment
Portable Instrumentation
Power-Amplifier Control
Process Control and Servo Loops
Programmable Voltage and Current Sources

Key Specifications:

Precision DACs (12-16 Bits)

Part Number

Power-On Reset State

Resolution
(bits)

Channels

Output Type

Reference

INL
(±LSB)

Interface

Supply Range
(V)

Oper. Temp.
(°C)

Budgetary Price

max

min

max

See Notes

MAX5139

Mid-Scale

Zero-Scale

Voltage- Buffered

Int./Ext.

Serial - SPI

2.7

5.25

-40 to +105

$1.60 @1k

MAX5138

$3.39 @1k

See All Precision DACs (12-16 Bits) (248)

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.

Precision DACs (4-12 Bits)