max5233 Maxim Integrated Products, Inc., max5233 Datasheet

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max5233

Manufacturer Part Number
max5233
Description
3v/5v, 10-bit, Serial Voltage-output Dual Dacs With Internal Reference
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
The MAX5232/MAX5233 low-power, dual 10-bit voltage-
output digital-to-analog converters (DACs) feature an
internal 10ppm/°C precision bandgap voltage reference
and precision output amplifiers. The MAX5233 operates
on a single 5V supply with an internal 2.465V reference
and features a 4.092V full-scale output range. The
MAX5232 operates on a single 3V supply with an internal
1.234V reference and features a 2.046V full-scale output
range. The MAX5233 consumes only 470µA while the
MAX5232 consumes only 420µA of supply current. Both
devices feature low-power (2µA) software- and hard-
ware-enabled shutdown modes.
The MAX5232/MAX5233 feature a 13.5MHz SPI™-,
QSPI™-, and MICROWIRE™-compatible 3-wire serial
interface. An additional data output (DOUT) allows for
daisy-chaining and read back. Each DAC has a double-
buffered digital input. The MAX5232/MAX5233 feature
two software-selectable shutdown output impedances:
1kΩ or 200kΩ. A power-up reset feature sets DAC out-
puts at ground or at the midscale DAC code.
The MAX5232/MAX5233 are specified over the extended
temperature range (-40°C to +85°C) and are available in
16-pin QSOP packages.
19-2331; Rev 1; 9/03
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.
3V/5V, 10-Bit, Serial Voltage-Output Dual DACs
TOP VIEW
Industrial Process Controls
Automatic Test Equipment
Digital Offset and Gain Adjustment
Motion Control
µP-Controlled Systems
OUTA
LDAC
SCLK
RSTV
OSA
CLR
DIN
CS
________________________________________________________________ Maxim Integrated Products
1
2
3
4
5
6
7
8
General Description
MAX5232
MAX5233
QSOP
Pin Configuration
Applications
16
15
14
13
12
11
10
9
OSB
OUTB
V
AGND
REF
PDL
DOUT
DGND
DD
with Internal Reference
♦ Internal 10ppm/°C Precision Bandgap Reference
♦ 30ppm/°C (max) Full-Scale Output Range
♦ Single-Supply Operation
♦ Low Supply Current
♦ 13.5MHz SPI/QSPI/MICROWIRE-Compatible,
♦ Pin-Programmable Power-Up Reset State to Zero
♦ Programmable Shutdown Modes with 1kΩ or
♦ Recalls Output State Prior to Shutdown or Reset
♦ Buffered Output Drives 5kΩ || 100pF Loads
♦ Space-Saving 16-Pin QSOP Package
Functional Diagram appears at end of data sheet.
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor, Corp.
MAX5232EEE
MAX5233EEE
3-Wire Serial Interface
or Midscale Output Voltage
200kΩ Internal Output Loads
2.465V (MAX5233)
1.234V (MAX5232)
4.092V (MAX5233)
2.046V (MAX5232)
5V (MAX5233)
3V (MAX5232)
470µA (MAX5233)
420µA (MAX5232)
PART
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
Ordering Information
PIN-
PACKAGE
16 QSOP
16 QSOP
Features
(LSB)
±0.5
±0.5
INL
1

Related parts for max5233

max5233 Summary of contents

Page 1

... The MAX5232 operates on a single 3V supply with an internal 1.234V reference and features a 2.046V full-scale output range. The MAX5233 consumes only 470µA while the MAX5232 consumes only 420µA of supply current. Both devices feature low-power (2µA) software- and hard- ware-enabled shutdown modes. The MAX5232/MAX5233 feature a 13.5MHz SPI™ ...

Page 2

... 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. ELECTRICAL CHARACTERISTICS—MAX5233 (V = +4.5V to +5.5V, OS_ = AGND = DGND = 0, R ...

Page 3

... Serial Voltage-Output Dual DACs ELECTRICAL CHARACTERISTICS—MAX5233 (continued +4.5V to +5.5V, OS_ = AGND = DGND = are +25°C.) A PARAMETER DYNAMIC PERFORMANCE Voltage-Output Slew Rate Voltage-Output Settling Time Output-Voltage Swing (Note 5) OS_ Input Resistance Time Required for Output to Settle After Turning on V (Note 6) ...

Page 4

Serial Voltage-Output Dual DACs with Internal Reference ELECTRICAL CHARACTERISTICS—MAX5232 (continued +2.7V to +3.6V, OS_ = AGND = DGND = are +25°C.) A PARAMETER REFERENCE Output Voltage Output-Voltage Temperature Coefficient (Note ...

Page 5

... Note 4: DC crosstalk is measured as follows: set DAC A to midscale, and DAC B to zero, and measure DAC A output; then change DAC B to full scale, and measure ∆V DC crosstalk is the maximum ∆V Note 5: Accuracy is better than 1LSB for V Note 6: Guaranteed by design, not production tested. TIMING CHARACTERISTICS—MAX5233 (V = +4.5V to +5.5V, AGND = DGND = (Figures 1 and 2) ...

Page 6

... CS1 t CSW t LDL t (Note 8) CSLD Typical Operating Characteristics = 5kΩ 100pF, OS_ = AGND, both DACs enabled with full-scale output code INTEGRAL NONLINEARITY vs. DIGITAL INPUT CODE (MAX5233) 0.075 0.050 0.025 0 -0.025 -0.050 -0.075 0 125 250 375 500 625 750 DIGITAL INPUT CODE ...

Page 7

... Serial Voltage-Output Dual DACs (V = +3V (MAX5232 +5V (MAX5233 +25°C, unless otherwise noted.) A DIFFERENTIAL NONLINEARITY vs. DIGITAL INPUT CODE (MAX5233) 0.075 0.050 0.025 0 -0.025 -0.050 -0.075 0 125 250 375 500 625 750 875 1000 DIGITAL INPUT CODE SUPPLY CURRENT vs. SUPPLY VOLTAGE ...

Page 8

... Serial Voltage-Output Dual DACs with Internal Reference (V = +3V (MAX5232 +5V (MAX5233 +25°C, unless otherwise noted.) A TWO-DACs SHUTDOWN SUPPLY CURRENT vs. TEMPERATURE (MAX5233) 255 250 245 240 235 230 NO LOAD 225 -40 - TEMPERATURE (°C) FULL-SCALE OUTPUT VOLTAGE vs. TEMPERATURE (MAX5233) 4 ...

Page 9

... Serial Voltage-Output Dual DACs (V = +3V (MAX5232 +5V (MAX5233 +25°C, unless otherwise noted.) A DYNAMIC RESPONSE FALL TIME (MAX5233) MAX5232/MAX5233 toc22 V CS 5V/div V OUT 1V/div 2µs/div DIGITAL FEEDTHROUGH (MAX5232) MAX5232/MAX5233 toc25 SCLK 2V/div OUTA 1mV/div AC-COUPLED 10µs/div MAJOR-CARRY TRANSITION ...

Page 10

... DGND Digital Ground 10 DOUT Serial Data Output PDL 11 Power-Down Lockout. Disables shutdown of both DACs when low. 12 REF Reference Output. Reference provides a 2.465V (MAX5233) or 1.234V (MAX5232) nominal output. 13 AGND Analog Ground Positive Power Supply. Bypass AGND, and bypass V 15 OUTB ...

Page 11

... Internal Reference The MAX5232/MAX5233 use an on-board precision bandgap reference to generate an output voltage of 1.234V (MAX5232) or 2.465V (MAX5233). With a low temperature coefficient of only 10ppm/°C, REF can source up to 100µA and is stable for capacitive loads less than 200pF. Output Amplifiers The output amplifiers have internal resistors that pro- vide for a gain of 1 ...

Page 12

... MSB .. 10 Data Bits ... LSB C2…C0 D9 ................................D0 The 3-wire serial interface (SPI, QSPI, MICROWIRE compatible) used in the MAX5232/MAX5233 allows for complete control of DAC operations (Figures 4 and 5). Figures 1 and 2 show the timing for the serial interface. The serial word consists of 3 control bits followed by 10 data bits (MSB first) and 1 sub-bit as described in Tables 1, 2, and 3 ...

Page 13

... DAC also powers up the main bias generator and reference. To change from full power- down to both DACs shutdown requires the waking of at least one DAC between states. When powering up the MAX5232/MAX5233 (powering V ), allow 400µs (max) for the output to stabilize. When DD exiting full power-down mode, also allow 400µ ...

Page 14

Serial Voltage-Output Dual DACs with Internal Reference Applications Information Integral Nonlinearity (INL) Integral nonlinearity (Figure 6a) is the deviation of the val- ues on an actual transfer function from a straight line. This straight line can be either ...

Page 15

... MAX5232 MAX5233 Unipolar Output Figure 8. Digital Calibration Figure 8 shows the MAX5232/MAX5233 in a digital cali- bration application. With a bright light value applied to the photodiode (on), the DAC is digitally ramped until it trips the comparator. The microprocessor (µP) stores this high calibration value. Repeat the process with a dim light (off) to obtain the dark current calibration ...

Page 16

... Internal Reference DIN SCLK CS1 CS2 CS3 CS MAX5232 MAX5233 SCLK DIN Figure 9. Multiple MAX5232/MAX5233s Sharing a Common DIN Line SCLK CS CS MAX5232 MAX5233 SCLK DIN DIN Figure 10. Daisy-Chaining MAX5232/MAX5233 Devices Power-Supply and Bypassing On power-up, the input and DAC registers are cleared ...

Page 17

... DECODE CONTROL INPUT DAC DAC B REGISTERS REGISTER 2.5V (1.25V) 1.25V 2X (1X) REFERENCE BUFFER ( ) FOR MAX5232 ONLY REF Functional Diagram AGND DGND 121kΩ OSA 77.25kΩ AMP A OUTA 1kΩ 1kΩ SHUTDOWN 121kΩ OSB 77.25kΩ AMP B OUTB 1kΩ SHUTDOWN MAX5232 MAX5233 17 ...

Page 18

Serial Voltage-Output Dual DACs with Internal Reference (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) Maxim cannot assume responsibility for use of any ...

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