MAX5584EUP+T中文资料

General Description

The MAX5580–MAX5585 quad, 12-/10-/8-bit, voltage-output, digital-to-analog converters (DACs) offer buffered outputs and a 3μs maximum settling time at the 12-bit level. The DACs operate from a +2.7V to +5.25V analog supply and a separate +1.8V to +5.25V digital supply. The 20MHz, 3-wire, serial interface is compati-ble with SPI?, QSPI?, MICROWIRE?, and digital sig-nal processor (DSP) protocol applications. Multiple devices can share a common serial interface in direct-access or daisy-chained configuration. The MAX5580–MAX5585 provide two multifunctional, user-programma-ble, digital I/O ports. The externally selectable power-up states of the DAC outputs are either zero scale, mid-scale, or full scale. Software-selectable FAST and SLOW settling modes decrease settling time in FAST mode, or reduce supply current in SLOW mode.

The MAX5580/MAX5581 are 12-bit DACs, the MAX5582/MAX5583 are 10-bit DACs, and the MAX5584/MAX5585 are 8-bit DACs. The MAX5580/MAX5582/MAX5584 provide unity-gain-configured out-put buffers, while the MAX5581/MAX5583/MAX5585provide force-sense-configured output buffers. The MAX5580–MAX5585 operate over the extended -40°C to +85°C temperature range and are available in a space-saving, 6.5mm x 4.4mm, 20-pin, TSSOP package.

Features

?3μs (max) 12-Bit Settling Time to 0.5 LSB ?Quad, 12-/10-/8-Bit Serial DACs in TSSOP Package

?±1 LSB (max)INL and DNL at 12-Bit Resolution ?Two User-Programmable Digital I/O Ports ?Single +2.7V to +5.25V Analog Supply ?+1.8V to AV DD Digital Supply

?20MHz, 3-Wire, SPI-/QSPI-/MICROWIRE-/DSP-Compatible Serial Interface

?Glitch-Free Outputs Power Up to Zero Scale,Midscale, or Full Scale Controlled by PU Pin ?Unity-Gain or Force-Sense-Configured Output Buffers

Applications

Portable Instrumentation

Automatic Test Equipment (ATE)Digital Offset and Gain Adjustment Automatic Tuning

Programmable Voltage and Current Sources Programmable Attenuators Industrial Process Controls Motion Control

Microprocessor (μP)-Controlled Systems Power Amplifier Control

Fast Parallel-DAC to Serial-DAC Upgrades

MAX5580–MAX5585

Buffered, Fast-Settling, Quad, 12-/10-/8-Bit, Voltage-Output DACs

________________________________________________________________Maxim Integrated Products

For pricing delivery, and ordering information please contact Maxim Direct at 1-888-629-4642,or visit Maxim’s website at https://www.360docs.net/doc/ea8635132.html,.

Pin Configuration appears at end of data sheet.

SPI/QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

Ordering Information/Selector Guide

*EP = Exposed paddle.

Note:All devices are specified over the -40°C to +85°C operating temperature range.

M A X 5580–M A X 5585

Buffered, Fast-Settling, Quad,

12-/10-/8-Bit, Voltage-Output DACs 2_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

AV DD to DV DD ........................................................................±6V AGND to DGND..................................................................±0.3V AV DD to AGND, DGND.............................................-0.3V to +6V DV DD to AGND, DGND............................................-0.3V to +6V FB_, OUT_,

REF to AGND........-0.3V to the lower of (AV DD + 0.3V) or +6V SCLK, DIN, CS , PU,

DSP to DGND.......-0.3V to the lower of (DV DD + 0.3V) or +6V UPIO1, UPIO2

to DGND...............-0.3V to the lower of (DV DD + 0.3V) or +6V

Maximum Current into Any Pin.........................................±50mA Continuous Power Dissipation (T A = +70°C)

20-Pin TSSOP (derate 21.7mW/°C above +70°C)........1739mW Operating Temperature Range ...........................-40°C to +85°C Storage Temperature Range.............................-65°C to +150°C Junction Temperature......................................................+150°C Lead Temperature (soldering, 10s).................................+300°C

MAX5580–MAX5585

Buffered, Fast-Settling, Quad, 12-/10-/8-Bit, Voltage-Output DACs

_______________________________________________________________________________________3

ELECTRICAL CHARACTERISTICS (continued)

(AV DD = 2.7V to 5.25V, DV DD = 1.8V to AV DD , V AGND = 0, V DGND = 0, V REF = 2.5V (for AV DD = 2.7V to 5.25V), V REF = 4.096V (for AV DD = 4.5V to 5.25V), R L = 10k ?, C L = 100pF, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.) (Note 1)

M A X 5580–M A X 5585

Buffered, Fast-Settling, Quad,

12-/10-/8-Bit, Voltage-Output DACs 4_______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(AV

= 2.7V to 5.25V, DV = 1.8V to AV , V = 0, V = 0, V = 2.5V (for AV = 2.7V to 5.25V), V = 4.096V (for

MAX5580–MAX5585

Buffered, Fast-Settling, Quad, 12-/10-/8-Bit, Voltage-Output DACs

_______________________________________________________________________________________5

ELECTRICAL CHARACTERISTICS (continued)

Note 2:Linearity guaranteed from decimal code 250 to code 4095 for the MAX5580A/MAX5581A (12 bit, A grade), code 40 to code

4095 for the MAX5580B/MAX5581B (12 bit, B grade), code 20 to code 1023 for the MAX5582/MAX5583 (10 bit), and code 5to code 255 for the MAX5584/MAX5585 (8 bit).

Note 3:Represents the functional range. The linearity is guaranteed at V REF = 2.5V (for AV DD from 2.7V to 5.25V), and V REF =

4.096V (for AV DD = 4.5V to

5.25V). See the Typical Operating Characteristics section for linearity at other voltages.

Note 4:Guaranteed by design.

Note 5:The reference -3dB bandwidth is measured with a 0.1V P-P sine wave on V REF and with full-scale input code.

Note 6:DC crosstalk is measured as follows: outputs of DACA–DACD are set to full scale and the output of DACD is measured.

While keeping DACD unchanged, the outputs of DACA–DACC are transitioned to zero scale and the ?V OUT of DACD is measured.

M A X 5580–M A X 5585

Buffered, Fast-Settling, Quad,

12-/10-/8-Bit, Voltage-Output DACs 6_______________________________________________________________________________________

TIMING CHARACTERISTICS—DSP Mode Disabled (3V, 3.3V, 5V Logic) (Figure 1)

MAX5580–MAX5585

Buffered, Fast-Settling, Quad, 12-/10-/8-Bit, Voltage-Output DACs

_______________________________________________________________________________________7

TIMING CHARACTERISTICS—DSP Mode Disabled (1.8V Logic) (Figure 1)

M A X 5580–M A X 5585

Buffered, Fast-Settling, Quad,

12-/10-/8-Bit, Voltage-Output DACs 8_______________________________________________________________________________________

TIMING CHARACTERISTICS—DSP Mode Enabled (3V, 3.3V, 5V Logic) (Figure 2)

MAX5580–MAX5585

Buffered, Fast-Settling, Quad, 12-/10-/8-Bit, Voltage-Output DACs

_______________________________________________________________________________________9

TIMING CHARACTERISTICS—DSP Mode Enabled (1.8V Logic) (Figure 2)

lowing edge. In the case of a 0.5 clock-period delay, it is necessary to increase the minimum high/low clock times to 25ns (2.7V) or 50ns (1.8V).

Note 8:The falling edge of DSP starts a DSP-type bus cycle, provided that CS is also active low to select the device. DSP active low and

CS active low must overlap by a minimum of 10ns (2.7V) or 20ns (1.8V). CS can be permanently low in this mode of operation.

M A X 5580–M A X 5585

Buffered, Fast-Settling, Quad,

12-/10-/8-Bit, Voltage-Output DACs 10______________________________________________________________________________________

0.60.40.50.20.1-0.20.30-0.1-0.3

2000

1000

3000

4000

5000

INTEGRAL NONLINEARITY

vs. DIGITAL INPUT CODE (MAX5580A)

INPUT CODE

I N L (L S B )

0.40.20.30.10-0.1-0.2

2000

1000

3000

4000

5000

INTEGRAL NONLINEARITY

vs. DIGITAL INPUT CODE (MAX5581A)

INPUT CODE

I N L (L S B

)

230-1-31-2

-4

102420483072

4095

INTEGRAL NONLINEARITY vs. DIGITAL INPUT CODE (12 BIT)

DIGITAL INPUT CODE

I N L (L S B )

1.000.500.750-0.25-0.750.25-0.50-1.00

256

512768

1023

INTEGRAL NONLINEARITY vs. DIGITAL INPUT CODE (10 BIT)

M A X 5580-85 t o c 04

DIGITAL INPUT CODE

I N L (L S B )

0.500.250

-0.25-0.50

064

128192

255

INTEGRAL NONLINEARITY vs. DIGITAL INPUT CODE (8 BIT)

M A X 5580-85 t o c 05

DIGITAL INPUT CODE

I N L (L S B )

0.50

0.250

-0.25

-0.50

102420483072

4095

DIFFERENTIAL NONLINEARITY vs. DIGITAL INPUT CODE (12 BIT)

M A X 5580-85 t o c 06

DIGITAL INPUT CODE

D N L (L S B )

0.20.10-0.1-0.2

256

512768

1023

DIFFERENTIAL NONLINEARITY vs. DIGITAL INPUT CODE (10 BIT)

DIGITAL INPUT CODE

D N L (L S B )

0.0500.0250

-0.025

-0.050

128192

255

DIFFERENTIAL NONLINEARITY vs. DIGITAL INPUT CODE (8 BIT)

M A X 5580-85 t o c 08

DIGITAL INPUT CODE

D N L (L S B )

INTEGRAL NONLINEARITY

vs. REFERENCE VOLTAGE (MAX5580A)

V REF (V)

I N L (L S B )

4.5

4.0

3.0 3.5

2.0

2.5

1.5

0.05

0.100.150.200.250.300.350.400.450.50

01.0

5.0

Typical Operating Characteristics

(AV DD = DV DD = 5V, V REF = 4.096V, R L = 10k ?, C L = 100pF, speed mode = FAST, PU = floating, T A = +25°C, unless otherwise noted.)

MAX5580–MAX5585

Buffered, Fast-Settling, Quad, 12-/10-/8-Bit, Voltage-Output DACs

______________________________________________________________________________________11

INTEGRAL NONLINEARITY

vs. REFERENCE VOLTAGE (MAX5581A)

V REF (V)

I N L (L S B )

4.5

4.0

3.0 3.5

2.0

2.5

1.5

0.10.20.30.40.50.60.70.80.91.001.0

5.0

4230-1-31-2-4

1.0

1.5

2.0

2.5

3.0 3.5

4.0

4.5

5.0

INTEGRAL NONLINEARITY vs. REFERENCE VOLTAGE (12 BIT)

V REF (V)

I N L (L S B )

DIFFERENTIAL NONLINEARITY vs. REFERENCE VOLTAGE (12 BIT)

V REF (V)

D N L (L S B )

4.5

4.0

3.0 3.5

2.0

2.5

1.5

-0.4-0.3

-0.2-0.100.10.20.30.40.5

-0.5

1.0

5.0

4230-1-31-2

-4

-40

-15

INTEGRAL NONLINEARITY vs. TEMPERATURE (12 BIT)

TEMPERATURE (°C)

I N L (L S B )

0.20.10-0.1

-0.2

-40

-15

DIFFERENTIAL NONLINEARITY vs. TEMPERATURE (12 BIT)

TEMPERATURE (°C)

D N L (L S B )

2.0

1.5

1.0

0.5

102420483072

4095

SUPPLY CURRENT

vs. DIGITAL INPUT CODE (FORCE SENSE)

DIGITAL INPUT CODE

S U P P L Y C U R R E N T (m A )

1.00.75

0.50

0.25

102420483072

4095

SUPPLY CURRENT

vs. DIGITAL INPUT CODE (UNITY GAIN)

DIGITAL INPUT CODE

S U P P L Y C U R R E N T (m A )

SUPPLY CURRENT vs. SUPPLY VOLTAGE

(FORCE SENSE)

SUPPLY VOLTAGE (V)S U P P L Y C U R R E N T (m A )

4.80

4.10

3.40

0.20.40.60.81.01.21.41.61.82.02.22.42.60

2.70

5.25

SUPPLY CURRENT vs. SUPPLY VOLTAGE

(UNITY GAIN)

SUPPLY VOLTAGE (V)

S U P P L Y C U R R E N T (m A )

4.80

4.10

3.40

2.70

5.25

0.20.40.60.81.01.2

1.41.6

Typical Operating Characteristics (continued)

(AV DD = DV DD = 5V, V REF = 4.096V, R L = 10k ?, C L = 100pF, speed mode = FAST, PU = floating, T A = +25°C, unless otherwise noted.)

M A X 5580–M A X 5585

Buffered, Fast-Settling, Quad,

12-/10-/8-Bit, Voltage-Output DACs 12______________________________________________________________________________________

SHUTDOWN SUPPLY CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

S H U T D O W N S U P P L Y C U R R E N T (n A )

4.80

4.10

3.40

2.70

5.25

55606570758085

9095100500.60.4

0.50.30.20.10-40

-15

85INTEGRAL NONLINEARITY vs. TEMPERATURE (A GRADE)

TEMPERATURE (°C)I N L (L S B )

3.02.02.5

1.51.0

0.50

-4010-15356085

OFFSET ERROR

vs. TEMPERATURE (A GRADE)

TEMPERATURE (°C)

O F F S E T E R R O R (m V )

7563142

0-40

-15

OFFSET ERROR vs. TEMPERATURE

TEMPERATURE (°C)

O F F S E T E R R O R (L S B )

0-0.5-1.0

-1.5-2.0

-2.5

-40

10-15356085

GAIN ERROR

vs. TEMPERATURE (A GRADE)

TEMPERATURE (°C)

G A I N E R R O R (L S B )

-1-2-3-4-5-6-7-8-9

-10

-40

-15

GAIN ERROR vs. TEMPERATURE

TEMPERATURE (°C)

G A I N E R R O R (L S B )

OUTPUT VOLTAGE

vs. OUTPUT SOURCE/SINK CURRENT

I OUT (mA)

O U T P U T V O L T A G E (V )

0-5

-10

0.5

1.0

1.5

2.02.5

-15

MAJOR-CARRY TRANSITION GLITCH

MAX5580-85 toc26

2V/div (AC COUPLED)OUT_10mV/div

200ns/div

SETTLING TIME POSITIVE

2V/div

OUT_2V/div

400ns/div

FULL-SCALE TRANSITION

Typical Operating Characteristics (continued)

(AV DD = DV DD = 5V, V REF = 4.096V, R L = 10k ?, C L = 100pF, speed mode = FAST, PU = floating, T A = +25°C, unless otherwise noted.)

MAX5580–MAX5585

Buffered, Fast-Settling, Quad, 12-/10-/8-Bit, Voltage-Output DACs

______________________________________________________________________________________

SETTLING TIME NEGATIVE

CS 2V/div

OUT_2V/div

400ns/div

5-25

1001k

10k

REFERENCE INPUT BANDWIDTH

FREQUENCY (Hz)

G A I N (d B )

-20-15

-10-50

REFERENCE FEEDTHROUGH AT 1kHz

A X 5580-85 t

o c 30

FREQUENCY (kHz)

5.04.53.5

4.01.5 2.0 2.5 3.01.0

-110-120-130-100-90-80-70-60-50-40-30-22-142

0.5 5.5

DAC-TO-DAC CROSSTALK

MAX5580-85 toc31

200μs/div OUTA–OUTC 2V/div

OUTD 2mV/div

DIGITAL FEEDTHROUGH

MAX5580-85 toc32

1μs/div

SCLK 2V/div

OUT_

(AC-COUPLED)5mV/div

POWER-UP GLITCH

AV DD 2V/div

OUT_2V/div

20μs/div

Typical Operating Characteristics (continued)

(AV DD = DV DD = 5V, V REF = 4.096V, R L = 10k ?, C L = 100pF, speed mode = FAST, PU = floating, T A = +25°C, unless otherwise noted.)

EXITING SHUTDOWN TO MIDSCALE

UPIO_2V/div

OUT_2V/div

10μs/div

PU = FLOAT

M A X 5580–M A X 5585

Buffered, Fast-Settling, Quad,

12-/10-/8-Bit, Voltage-Output DACs 14______________________________________________________________________________________

MAX5580–MAX5585

Buffered, Fast-Settling, Quad, 12-/10-/8-Bit, Voltage-Output DACs

Functional Diagrams

M A X 5580–M A X 5585

Buffered, Fast-Settling, Quad,

12-/10-/8-Bit, Voltage-Output DACs

Functional Diagrams (continued)

MAX5580–MAX5585

Buffered, Fast-Settling, Quad, 12-/10-/8-Bit, Voltage-Output DACs

______________________________________________________________________________________17

M A X 5580–M A X 5585

Buffered, Fast-Settling, Quad,

12-/10-/8-Bit, Voltage-Output DACs 18

______________________________________________________________________________________

Table 1. Serial Write Data Format

Figure 1. Serial-Interface Timing Diagram (DSP Mode Disabled)

Figure 2. Serial-Interface Timing Diagram (DSP Mode Enabled)

MAX5580–MAX5585

Buffered, Fast-Settling, Quad, 12-/10-/8-Bit, Voltage-Output DACs

______________________________________________________________________________________

Figure 3. MICROWIRE and SPI Single DAC Writes (CPOL = 0, CPHA = 0 or CPOL = 1, CPHA = 1)

Figure 4. DSP and SPI Single DAC Writes (CPOL = 0, CPHA = 1 or CPOL = 1, CPHA = 0)

Serial-Interface Programming Commands

Tables 2a, 2b, and 2c provide all the serial-interface programming commands for the MAX5580–MAX5585.Table 2a shows the basic DAC programming com-mands, Table 2b gives the advanced-feature program-ming commands, and Table 2c provides the 24-bit read commands. Figures 3 and 4 provide serial-inter-face diagrams for write operations.

Loading Input and DAC Registers

The MAX5580–MAX5585 contain a 16-bit shift register that is followed by a 12-bit input register and a 12-bit DAC register for each channel (see the Functional Diagrams ). Tables 3, 4, and 5 highlight a few of the commands that handle the loading of the input and DAC registers. See Table 2a for all DAC programming commands.

M A X 5580–M A X 5585

Buffered, Fast-Settling, Quad,

12-/10-/8-Bit, Voltage-Output DACs