Rainbow-electronics MAX5661 Bedienungsanleitung PDF herunterladen

General Description

The MAX5661 single 16-bit DAC with precision high-

voltage amplifiers provides a complete solution for pro-

grammable current and voltage-output applications.

The output amplifiers swing to industry-standard levels

of ±10V (voltage output) or source from 0mA (or from

4mA) to 20mA (current output). The voltage output

(OUTV) drives resistive loads greater than 2kΩ and

capacitive loads of up to 1.2µF. Voltage-output force-

sense connections compensate for series protection

resistors and field-wiring resistance. Short-circuit pro-

tection on the voltage output limits output current to

10mA (typ) sourcing or -11.5mA (typ) sinking. The cur-

rent output (OUTI) drives resistive loads up to 37.5V

(max) and inductive loads up to 1H.

The MAX5661 provides either a current output or a volt-

age output. Only one output is active at any given time,

regardless of the configuration. The MAX5661 voltage

output operates with ±13.48V to ±15.75V supplies

DDV

, V

SSV

) and the current output operates with a

single +13.48V to +40V supply (V

DDI

). A +4.75V to

+5.25V digital supply (V

) powers the rest of the inter-

nal circuitry. A buffered reference input accepts an

external +4.096V reference voltage.

Update the DAC outputs using software commands or

the asynchronous LDAC input. An asynchronous CLR

input sets the DAC outputs to the value stored in the

clear register or to zero. The FAULT output asserts

when the DAC’s current output is an open circuit, the

DAC’s voltage output is a short circuit, or when the CLR

input is low.

The MAX5661 communicates through a 4-wire 10MHz

SPI™-/QSPI™-/MICROWIRE™-compatible serial inter-

face. The DOUT output allows daisy chaining of multi-

ple devices. The MAX5661 is available in a 10mm x

10mm, 64-pin, LQFP package and operates over the

-40°C to +105°C temperature range.

SPI and QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

Applications

Industrial Analog Output Modules

Industrial Instrumentation

Programmable Logic Controls/Distributed

Control Systems

Process Control

Features

♦ 10-Bit Programmable Full-Scale Output

Adjustment for Up to ±25% Over Range

♦ Programmable Voltage Output

Unipolar Range: 0 to +10.24V ±25%

Bipolar Range: ±10.24V ±25%

♦ Programmable Current Output

Unipolar Low Range: 0 to 20.45mA

Unipolar High Range: 3.97mA to 20.45mA

♦ Flexible Analog Supplies (See Table 16)

±13.48V to ±15.75V for Voltage Output

+13.48V to +40V for Current Output

♦ Force-Sense Connections (Voltage Output)

for Differential Voltage-Output Remote Sensing

♦ Voltage-Output Current Limit

♦ Dropout Detector Senses Out-of-Regulation

Current Output

♦ CLR and LDAC Inputs for Asynchronous DAC

Updates

♦ CLR Input Resets Output to Programmed Value or

Zero Code

♦ FAULT Output Indicates Open-Circuited Current

Output, Short-Circuited Voltage Output, or Clear

State

♦ Temperature Drift

Voltage Output: ±0.4ppm FSR/°C

Current Output: ±7.9ppm FSR/°C

♦ Small 64-Pin LQFP Package (10mm x 10mm)

MAX5661

19-0741; Rev 0; 8/08

Single 16-Bit DAC with Current and Voltage

Outputs for Industrial Analog Output Modules

Pin Configuration and Typical Operating Circuit appear at

end of data sheet.

________________________________________________________________

Maxim Integrated Products

For pricing delivery, and ordering information please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

Ordering Information

Denotes a lead-free/RoHS-compliant package.

PART TEMP RANGE PIN-PACKAGE

MAX5661GCB+

-40°C to +105°C

64 LQFP

1 2 3 4 5 6 ... 38 39

Inhaltsverzeichnis

Seite 1 - Ordering Information

General DescriptionThe MAX5661 single 16-bit DAC with precision high-voltage amplifiers provides a complete solution for pro-grammable current and vol

Seite 2 - ABSOLUTE MAXIMUM RATINGS

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules10 ______________________________________________________

Seite 3

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules_________________________________________________________

Seite 4

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules12 ______________________________________________________

Seite 5

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules_________________________________________________________

Seite 6

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules14 ______________________________________________________

Seite 7 - TIMING CHARACTERISTICS

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules_________________________________________________________

Seite 8

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules16 ______________________________________________________

Seite 9

MAX5661Pin DescriptionPIN NAME FUNCTION1, 3, 5, 7, 8,10, 15–20,29–34, 36, 38,42, 44, 46–52,58, 61–64N.C. No Connection. Not internally connected.2 OUT

Seite 10 - Typical Operating Circuit

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules18 ______________________________________________________

Seite 11

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules_________________________________________________________

Seite 12

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules2 _______________________________________________________

Seite 13

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules20 ______________________________________________________

Seite 14

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules_________________________________________________________

Seite 15

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules22 ______________________________________________________

Seite 16

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules_________________________________________________________

Seite 17 - Pin Description

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules24 ______________________________________________________

Seite 18 - Pin Description (continued)

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules_________________________________________________________

Seite 19 - Detailed Description

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules26 ______________________________________________________

Seite 20

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules_________________________________________________________

Seite 21 - Table 2. Register Description

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules28 ______________________________________________________

Seite 22

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules_________________________________________________________

Seite 23 - Figure 5. Read Timing

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules_________________________________________________________

Seite 24

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules30 ______________________________________________________

Seite 25 - No Operation

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules_________________________________________________________

Seite 26 - Current Trim Register (Write)

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules32 ______________________________________________________

Seite 27 - Reference Input

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules_________________________________________________________

Seite 28 - CLR Input

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules34 ______________________________________________________

Seite 29

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules_________________________________________________________

Seite 30 - Output Configurations

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules36 ______________________________________________________

Seite 31 - Output Transfer Functions

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules_________________________________________________________

Seite 32

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules38 ______________________________________________________

Seite 33

MAX5661Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licens

Seite 34 - Applications Information

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules4 _______________________________________________________

Seite 35

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules_________________________________________________________

Seite 36

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules6 _______________________________________________________

Seite 37 - Pin Configuration

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules_________________________________________________________

Seite 38

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules8 _______________________________________________________

Seite 39 - Package Information

MAX5661Single 16-Bit DAC with Current and VoltageOutputs for Industrial Analog Output Modules_________________________________________________________

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