Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsData collecting ICsData acquisition IC - DA converter (DAC) LQFP 64

For pricing, delivery, and ordering information, please contact Maxim Direct

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

MAX5631/MAX5632/

MAX5633

General Description

The MAX5631/MAX5632/MAX5633 are 16-bit digital-to-

analog converters (DACs) with 32 sample-and-hold

(SHA) outputs for applications where a high number of

programmable voltages are required. These devices

include a clock oscillator and a sequencer that updates

the DAC with codes from an internal SRAM. No external

components are required to set offset and gain.

The MAX5631/MAX5632/MAX5633 feature a -4.5V to

+9.2V output voltage range. Other features include a

200µV/step resolution, with output linearity error, typi-

cally 0.005% of full-scale range (FSR). The 100kHz

refresh-rate updates each SHA every 320µs, resulting

in negligible output droop. Remote ground sensing

allows the outputs to be referenced to the local ground

of a separate device.

These devices are controlled through a 20MHz

SPI/QSPI™/MICROWIRE

-compatible 3-wire serial

interface. Immediate Update Mode allows any chan-

nel’s output to be updated within 20µs. Burst Mode

allows multiple values to be loaded into memory in a

single, high-speed data burst. All channels are updated

within 330µs after data has been loaded.

Each device features an output clamp and output resis-

tors for filtering. The MAX5631 features a 50Ω output

impedance and is capable of driving up to 250pF of out-

put capacitance. The MAX5632 features a 500Ω output

impedance and is capable of driving up to 10nF of output

capacitance. The MAX5633 features a 1kΩ output imped-

ance and is capable of driving up to 10nF of output

capacitance.

The MAX5631/MAX5632/MAX5633 are available in 12mm

x 12mm, 64-pin TQFP, and 10mm x 10mm, 68-pin thin

QFN packages.

________________________Applications

MEMS Mirror Servo Control

Industrial Process Control

Automatic Test Equipment

Instrumentation

Features

o Integrated 16-Bit DAC and 32-Channel SHA with

SRAM and Sequencer

o 32 Voltage Outputs

o 0.005% Output Linearity

o 200µV Output Resolution

o Flexible Output Voltage Range

o Remote Ground Sensing

o Fast Sequential Loading: 1.3µs per Register

o Burst and Immediate Mode Addressing

o No External Components Required for Setting

Gain and Offset

o Integrated Output Clamp Diodes

o Three Output Impedance Options:

MAX5631 (50Ω), MAX5632 (500Ω), and

MAX5633 (1kΩ)

19-2171; Rev 4; 9/12

16-Bit DACs with 32-Channel

Sample-and-Hold Outputs

Pin Configurations

Ordering Information

QSPI is a trademark of Motorola, Inc.

MICROWIRE is a registered trademark of National Semiconductor, Corp.

PART TEMP RANGE* PIN-PACKAGE

MAX5631UCB+D 0°C to +85°C 64 TQFP

MAX5631UTK+ 0°C to +85°C 68 TQFN-EP**

MAX5632UCB+D 0°C to +85°C 64 TQFP

MAX5632UTK+ 0°C to +85°C 68 TQFN-EP**

MAX5633UCB+D 0°C to +85°C 64 TQFP

MAX5633UTK+ 0°C to +85°C 68 TQFN-EP**

Pin Configurations continued at end of data sheet.

5859606162 5455565763

ECLK

OUT0

REF

TQFP

TOP VIEW

AGND

OUT31

OUT30

OUT29

OUT28

OUT27

OUT26

AGND

OUT25

5253

5051

OUT24

OUT23

OUT22

OUT21

OUT2

OUT1

OUT4

OUT3

AGND

OUT5

OUT7

OUT6

OUT9

OUT8

OUT10

OUT20

OUT19

OUT18

OUT17

OUT16

AGND

OUT15

OUT14

OUT13

OUT12

OUT11

IMMED

LOGIC

SCLK

DIN

AGND

LSHA

DGND

CLKSEL

RST

LDAC

N.C.

48 V

N.C.

2322212019 2726252418 2928 32313017

MAX5631

MAX5632

MAX5633

Denotes a lead(Pb)-free/RoHS-compliant package.

For other temperature-range options, contact factory.

EP = Exposed pad.

Summary of content (15 pages)

PAGE 1
MAX5631/MAX5632/ MAX5633 16-Bit DACs with 32-Channel Sample-and-Hold Outputs General Description Ordering Information PART TEMP RANGE* MAX5631UCB+D 0°C to +85°C 64 TQFP MAX5631UTK+ 0°C to +85°C 68 TQFN-EP** 0°C to +85°C 64 TQFP MAX5632UTK+ 0°C to +85°C 68 TQFN-EP** MAX5633UCB+D 0°C to +85°C 64 TQFP MAX5633UTK+ 0°C to +85°C 68 TQFN-EP** +Denotes a lead(Pb)-free/RoHS-compliant package. *For other temperature-range options, contact factory. **EP = Exposed pad.
PAGE 2
MAX5631/MAX5632/MAX5633 16-Bit DACs with 32-Channel Sample-and-Hold Outputs ABSOLUTE MAXIMUM RATINGS VDD to AGND.......................................................-0.3V to +12.2V VSS to AGND .........................................................-6.0V to +0.3V VDD to VSS ...........................................................................+15V VLDAC, VLOGIC, VLSHA to AGND or DGND ..............-0.3V to +6V REF to AGND............................................................-0.
PAGE 3
MAX5631/MAX5632/MAX5633 16-Bit DACs with 32-Channel Sample-and-Hold Outputs ELECTRICAL CHARACTERISTICS (continued) (VDD = +10V, VSS = -4V, VLOGIC = VLDAC = VLSHA = +5V, VREF = +2.5V, VAGND = VDGND = VGS = 0V, RL ≥ 10MΩ, CL = 50pF, CLKSEL = +5V, fECLK = 400kHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS 0.08 % DYNAMIC CHARACTERISTICS Sample-and-Hold Settling (Note 4) SCLK Feedthrough 0.5 nV-s fSEQ Feedthrough 0.
PAGE 4
MAX5631/MAX5632/MAX5633 16-Bit DACs with 32-Channel Sample-and-Hold Outputs ELECTRICAL CHARACTERISTICS (continued) (VDD = +10V, VSS = -4V, VLOGIC = VLDAC = VLSHA = +5V, VREF = +2.5V, VAGND = VDGND = VGS = 0V, RL ≥ 10MΩ, CL = 50pF, CLKSEL = +5V, fECLK = 400kHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.
PAGE 5
MAX5631/MAX5632/MAX5633 16-Bit DACs with 32-Channel Sample-and-Hold Outputs Typical Operating Characteristics (VDD = +10V, VSS = -4V, VREF = +2.5V, VGS = 0V, TA = +25°C, unless otherwise noted.) -0.001 -0.003 -0.005 -0.007 -0.6 -1.0 -1.4 INPUT CODE INPUT CODE DIFFERENTIAL NONLINEARITY VS. TEMPERATURE OFFSET VOLTAGE VS. TEMPERATURE 0.6 -40 MAX5631 toc05 -15 10 35 60 -16 85 -15 10 35 60 GAIN ERROR VS. TEMPERATURE POSITIVE SUPPLY PSRR VS. FREQUENCY 0.100 0.
PAGE 6
MAX5631/MAX5632/MAX5633 16-Bit DACs with 32-Channel Sample-and-Hold Outputs Typical Operating Characteristics (continued) (VDD = +10V, VSS = -4V, VREF = +2.5V, VGS = 0V, TA = +25°C, unless otherwise noted.) LOGIC SUPPLY CURRENT VS. LOGIC INPUT HIGH VOLTAGE 600 500 1000 34 SUPPLY CURRENT (mA) 700 36 MAX5631 toc11 LOGIC SUPPLY CURRENT (µA) 800 SUPPLY CURRENT vs. TEMPERATURE 1200 MAX5631 toc10 LOGIC SUPPLY CURRENT (µA) 900 800 600 400 5.25 28 ISS 26 INTERFACE INACTIVE 0 5.
PAGE 7
MAX5631/MAX5632/MAX5633 16-Bit DACs with 32-Channel Sample-and-Hold Outputs Pin Description PIN NAME FUNCTION TQFP TQFN 1, 2 1, 2, 17, 34, 51, 68 N.C.
PAGE 8
MAX5631/MAX5632/MAX5633 16-Bit DACs with 32-Channel Sample-and-Hold Outputs Pin Description (continued) PIN NAME FUNCTION TQFP TQFN 50 53 OUT21 Output 21 51 54 OUT22 Output 22 52 55 OUT23 Output 23 53 56 OUT24 Output 24 54 57 OUT25 Output 25 56 59 OUT26 Output 26 57 60 OUT27 Output 27 58 61 OUT28 Output 28 59 62 OUT29 Output 29 60 63 OUT30 Output 30 61 64 OUT31 63 66 REF — — Output 31 Reference Voltage Input Exposed Pad (TQFN Only).
PAGE 9
MAX5631/MAX5632/MAX5633 16-Bit DACs with 32-Channel Sample-and-Hold Outputs tCSH1 CS tCSHO tCSSO tCH tCSS1 tCL SCLK tDH tDS B23 DIN B22 B0 Figure 2. Serial Interface Timing Diagram Detailed Description Digital-to-Analog Converter The MAX5631/MAX5632/MAX5633 16-bit digital-to-analog converters (DAC) are composed of two matched sections. The four MSBs are derived through 15 identical matched resistors and the lower 12 bits are derived through a 12-bit inverted R-2R ladder.
PAGE 10
MAX5631/MAX5632/MAX5633 16-Bit DACs with 32-Channel Sample-and-Hold Outputs voltage at the ground-sense input. With a 2.5V reference, the nominal endpoints are -4.0535V and +9.0535V (Table 1). Note that these are “virtual” internal endpoint voltages and cannot be reached with all combinations of negative and positive power-supply voltages. The nominal, useable DAC endpoint codes for the selected power supplies may be calculated as: lower endpoint code = 32768 - ((2.5V - (VSS + 0.
PAGE 11
MAX5631/MAX5632/MAX5633 16-Bit DACs with 32-Channel Sample-and-Hold Outputs Table 2.
PAGE 12
MAX5631/MAX5632/MAX5633 16-Bit DACs with 32-Channel Sample-and-Hold Outputs The operating modes can also be selected externally through CLKSEL and IMMED. In the case where the control bit in the serial word and the external signal conflict, the signal that is a logic “1” is dominant. Modes of Operation The MAX5631/MAX5632/MAX5633 feature three modes of operation: 1) Sequence Mode 2) Immediate Update Mode 3) Burst Mode Table 3.
PAGE 13
MAX5631/MAX5632/MAX5633 16-Bit DACs with 32-Channel Sample-and-Hold Outputs Burst Mode Burst Mode allows multiple SRAM locations to be loaded at high speed. During Burst Mode, the output voltages are not updated until the data burst is complete and control returns to the sequencer. Select Burst Mode by driving both IMMED and C1 low. The sequencer is interrupted when CS is taken low. All or part of the memory can be loaded while CS is low. Each data word is loaded into its specified SRAM address.
PAGE 14
MAX5631/MAX5632/MAX5633 16-Bit DACs with 32-Channel Sample-and-Hold Outputs +10V +5V 0.1µF 0.1µF VLOGIC VLDAC VDD VLSHA REF +2.5V OUT0 GS OUT1 CS DIN MAX5631 MAX5632 MAX5633 SCLK IMMED CLKSEL ECLK RST OUT31 AGND DGND VSS CL 0.1µF -4V Figure 7. Typical Operating Circuit N.C. 1 N.C. 2 GS 3 52 CL 53 OUT21 54 OUT22 55 OUT23 56 OUT24 57 OUT25 58 AGND 59 OUT26 60 OUT27 61 OUT28 62 OUT29 63 OUT30 64 OUT31 65 AGND 66 VREF 68 N.C.
PAGE 15
MAX5631/MAX5632/MAX5633 16-Bit DACs with 32-Channel Sample-and-Hold Outputs Revision History REVISION NUMBER REVISION DATE 0 10/01 Initial release 3 1/05 Updated the operating temperature range in the Ordering Information and updated the Typical Operating Characteristics. 4 9/12 Removed leaded options and added lead-free notation in Ordering Information.