max5115eept Maxim Integrated Products, Inc., max5115eept Datasheet

max5115eept

Manufacturer Part Number

max5115eept

Description

Nonvolatile, Quad, 8-bit Dacs With 2-wire Serial Interface

Manufacturer

Maxim Integrated Products, Inc.

Datasheet

1.MAX5115EEPT.pdf (19 pages)

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The MAX5115/MAX5116 quad, 8-bit, digital-to-analog

converters (DACs) feature nonvolatile registers. These

nonvolatile registers store the DAC operating modes

and output states, allowing the DACs to initialize to

specified configurations at power-up.

Precision on-chip output buffers swing rail-to-rail, and

provide 8µs settling time. The I

serial interface allows for a maximum clock frequency

of 400kHz.

The MAX5115 has independent high and low reference

inputs allowing maximum output voltage range flexibili-

ty. The MAX5116 has single high and low reference

inputs for all DACs to minimize trace count and save

board space. The reference rails accept voltage inputs

that range from ground to the positive supply rail.

The devices operate from a single +2.7V to +5.25V sup-

ply and consume 200µA per DAC. A software-controlled

power-down mode decreases supply current to less

than 25µA. A software-controlled mute mode sets each

DAC, or both DACs simultaneously, to their respective

REFL_ voltages. The MAX5116 also includes an asyn-

chronous MUTE input, that drives all DAC outputs simul-

taneously to their respective REFL_ voltages.

The MAX5115 is available in a 20-pin QSOP, and the

MAX5116 is available in a 16-pin QSOP package. Both

devices are specified for operation over the extended

(-40°C to +85°C) temperature range.

19-3586; Rev 0; 2/05

Pin Configuration and Typical Operating Circuit appear at

end of data sheet.

*Purchase of I

license under the Philips I

Standard Specification defined by Philips.

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Nonvolatile, Quad, 8-Bit DACs with 2-Wire Serial

Digital Gain and Offset Adjustments

Programmable Attenuators

Portable Instruments

Power-Amp Bias Control

ATE Calibration

Laser Biasing

C components from Maxim Integrated Products, Inc., or one of its sublicensed Associate Companies, conveys a

________________________________________________________________ Maxim Integrated Products

General Description

C Patent Rights to use these components in an I

C*-compatible, 2-wire

Applications

♦ Nonvolatile Registers Initialize DACs to Stored

♦ +2.7V to +5.25V Single-Supply Operation

♦ Quad 8-Bit DACs with Independent High and Low

♦ Rail-to-Rail Output Buffers

♦ Low 200µA per DAC Supply Current

♦ Power-Down Mode Reduces Supply Current to

♦ 400kHz, I

♦ Asynchronous MUTE Input (MAX5116)

♦ Small 16-/20-Pin QSOP Packages

MAX5115EEP

MAX5116EEE

States

Reference Inputs

25µA (max)

MUTE

PART

SDA

SCL

C system, provided that the system conforms to the I

INTERFACE/

CONTROL

MAX5116

2-WIRE

SERIAL

C-Compatible, 2-Wire Serial Interface

-40°C to +85°C

TEMP RANGE

NONVOLATILE/

REGISTERS

VOLATILE

Ordering Information

DAC0

DAC1

DAC2

DAC3

Simplified Diagram

GND

REFH

PIN-

PACKAGE

20 QSOP

16 QSOP

DAC0

DAC1

DAC2

DAC3

REFL

Interface

Features

REFERENCE

INPUTS

OUT0

OUT1

OUT2

OUT3

Related parts for max5115eept

max5115eept Summary of contents

Page 1

... Laser Biasing Pin Configuration and Typical Operating Circuit appear at end of data sheet. 2 *Purchase components from Maxim Integrated Products, Inc., or one of its sublicensed Associate Companies, conveys a 2 license under the Philips I C Patent Rights to use these components Standard Specification defined by Philips. ...

Page 2

Nonvolatile, Quad, 8-Bit DACs with 2-Wire Serial Interface ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND, unless otherwise noted.) , A0, A1, A2, A3, SCL, SDA, MUTE.................-0.3V to +6. OUT0, OUT1, OUT2, OUT3, REFH0, REFH1, REFH2, REFH3, REFH, ...

Page 3

Nonvolatile, Quad, 8-Bit DACs with 2-Wire Serial ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.25V, GND = 0, REFH_ = V DD noted. Typical values are +3.0V and T DD PARAMETER SYMBOL Input Low Voltage (Note 4) ...

Page 4

Nonvolatile, Quad, 8-Bit DACs with 2-Wire Serial Interface ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.25V, GND = 0, REFH_ = V DD noted. Typical values are +3.0V and T DD PARAMETER SYMBOL DIGITAL TIMING (Figure 4, ...

Page 5

Nonvolatile, Quad, 8-Bit DACs with 2-Wire Serial (V = +3V +3V GND REFH_ REFL_ INTEGRAL NONLINEARITY vs. INPUT CODE 2.0 1.5 1.0 0.5 0 -0.5 -1 128 192 INPUT CODE DIFFERENTIAL NONLINEARITY ...

Page 6

Nonvolatile, Quad, 8-Bit DACs with 2-Wire Serial Interface (V = +3V +3V GND REFH_ REFL_ GAIN ERROR vs. TEMPERATURE -0.08 -0.10 -0.12 -0.14 -0.16 -0.18 -0.20 -40 - TEMPERATURE (°C) SUPPLY ...

Page 7

Nonvolatile, Quad, 8-Bit DACs with 2-Wire Serial (V = +3V +3V GND REFH_ REFL_ SUPPLY CURRENT vs. SUPPLY VOLTAGE 700 NO LOAD CODE = 00h 675 650 T = -40°C A 625 600 575 ...

Page 8

Nonvolatile, Quad, 8-Bit DACs with 2-Wire Serial Interface (V = +3V +3V GND REFH_ REFL_ NEGATIVE SETTLING TIME MAX5115/5116 toc25 SCL 2V/div GND OUT_ 1V/div GND 2μs/div PIN NAME 1 2 ...

Page 9

Nonvolatile, Quad, 8-Bit DACs with 2-Wire Serial MAX5115 SCL 17 SDA 19 2-WIRE SERIAL 20 A3 INTERFACE/ CONTROL POR Figure 1. MAX5115 Functional Diagram _______________________________________________________________________________________ DAC0 DAC0 NONVOLATILE VOLATILE DAC0 REGISTER ...

Page 10

Nonvolatile, Quad, 8-Bit DACs with 2-Wire Serial Interface MAX5116 14 SCL SDA 16 2-WIRE SERIAL 1 A3 INTERFACE/ CONTROL MUTE 9 POR Figure 2. MAX5116 Functional Diagram 10 ______________________________________________________________________________________ V REFH ...

Page 11

Nonvolatile, Quad, 8-Bit DACs with 2-Wire Serial Detailed Description The MAX5115/MAX5116 8-bit DACs feature internal, nonvolatile registers that store the DAC states for initial- ization during power-up. These devices consist of resis- tor-string DACs, rail-to-rail output buffers, a shift register, ...

Page 12

Nonvolatile, Quad, 8-Bit DACs with 2-Wire Serial Interface SDA t SU:DAT t LOW SCL t HIGH t HD:STA PARAMETERS ARE MEASURED FROM 30% TO 70%. Figure 4. 2-Wire Serial-Interface Timing Diagram Serial Interface The MAX5115/MAX5116 ...

Page 13

Nonvolatile, Quad, 8-Bit DACs with 2-Wire Serial Acknowledge Bit (ACK) and Not- Acknowledge Bit (NACK) Successful data transfers are acknowledged with an acknowledge bit (ACK not-acknowledge bit (NACK). Both the master and the MAX5115/MAX5116 (slave) generate acknowledge bits. ...

Page 14

Nonvolatile, Quad, 8-Bit DACs with 2-Wire Serial Interface MSB ADDRESS AND COMMAND BYTES GENERATED BY MASTER DEVICE MSB Figure 9. Example Read Word Data Sequence The write command requires 27 ...

Page 15

Nonvolatile, Quad, 8-Bit DACs with 2-Wire Serial Table 2. Volatile and Nonvolatile Write Selection NONVOLATILE VOLATILE (NV) (V) Transfer data from NVREG_ VREG_ 0 1 Write to VREG_ 1 0 Write to NVREG_ 1 1 Write to ...

Page 16

Nonvolatile, Quad, 8-Bit DACs with 2-Wire Serial Interface Table 5. Volatile and Nonvolatile Read Selection NONVOLATILE VOLATILE (NV) ( Read from VREG_ 1 0 Read from NVREG_ Table 7. Mute/Power-Down Operation S ADDRESS T A BYTE C COMMAND ...

Page 17

Nonvolatile, Quad, 8-Bit DACs with 2-Wire Serial Applications Information DAC Linearity and Offset Voltage The output buffer can have a negative input offset volt- age that would normally drive the output negative, but with no negative supply, the output remains ...

Page 18

Nonvolatile, Quad, 8-Bit DACs with 2-Wire Serial Interface Typical Operating Circuit V DD μ SDA SCL SCL SDA REFH0 REFH1 REFH2 REFH3 REFL0 REFL1 REFL2 REFL3 SCL ...

Page 19

... Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 19 © 2005 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products, Inc. Interface Package Information PACKAGE OUTLINE, QSOP .150", .025" LEAD PITCH ...

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