MAX5259EEE+T Maxim Integrated Products, MAX5259EEE+T Datasheet

IC DAC 8BIT OCTAL 3V 16-QSOP

MAX5259EEE+T

Manufacturer Part Number
MAX5259EEE+T
Description
IC DAC 8BIT OCTAL 3V 16-QSOP
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX5259EEE+T

Settling Time
10µs
Number Of Bits
8
Data Interface
Serial
Number Of Converters
8
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-QSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power Dissipation (max)
-
The MAX5258/MAX5259 are +3V/+5V single-supply,
digital serial-input, voltage-output, 8-bit octal digital-to-
analog converters (DACs). Internal precision buffers
swing Rail-to-Rail
extends from ground to the positive supply. The +5V
(MAX5258) and the +3V (MAX5259) feature a 10µA
(max) shutdown mode.
The serial interface is double-buffered. A 16-bit input
shift register is followed by eight 8-bit input registers
and eight 8-bit DAC registers. The 16-bit serial word
consists of two “don’t care” bits, three address bits,
three control bits, and eight data bits. The input and
DAC registers can both be updated independently or
simultaneously with a single software command. The
asynchronous control input (LDAC) provides simultane-
ous updating of all eight DAC registers.
The interface is compatible with SPI™, QSPI™ (CPOL =
CPHA = 0 or CPOL = CPHA = 1), and MICROWIRE™.
A buffered digital data output allows daisy-chaining of
serial devices.
The MAX5258/MAX5259 are available in a 16-pin QSOP
package.
19-1844; Rev 1; 4/01
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
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.
________________________Applications
Digital Gain and Offset Adjustment
Programmable Attenuators
Programmable Current Sources
Portable Instruments
________________________________________________________________ Maxim Integrated Products
®
, and the reference input range
General Description
+3V/+5V, Low-Power, 8-Bit Octal DACs
with Rail-to-Rail Output Buffers
♦ +2.7V to +5.5V Single-Supply Operation
♦ Low Supply Current: 1.3mA
♦ Low-Power Shutdown Mode
♦ ±1LSB DNL (max)
♦ ±1LSB INL (max)
♦ Ground to V
♦ Output Buffer Amplifiers Swing Rail-to-Rail
♦ 10MHz Serial Interface, SPI, QSPI (CPOL = CPHA
♦ Double-Buffered Registers for Synchronous
♦ Serial Data Output for Daisy-Chaining
♦ Ultra-Small 16-Pin QSOP Package
MAX5258EEE -40
MAX5259EEE -40
= 0 or CPOL = CPHA = 1), and MICROWIRE-
Compatible
Updating
TOP VIEW
PART
0.24µA (MAX5259)
0.45µA (MAX5258)
OUTB
OUTA
LDAC
OUTE
OUTF
GND
DD
V
REF
TEMP. RANGE PIN- PACK AGE
DD
o
o
Reference Input Range
C to +85
C to +85
1
2
3
4
5
6
7
8
Ordering Information
MAX5258
MAX5259
QSOP
o
o
C
C
Pin Configuration
16 QSOP
16 QSOP
16
15
14
13
12
11
10
9
OUTC
OUTD
DOUT
DIN
SCLK
CS
OUTH
OUTG
Features
VO LT A G E
SU PPL Y
+5.0
+3.0
( V)
1

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MAX5259EEE+T Summary of contents

Page 1

... Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp. ________________________________________________________________ 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. with Rail-to-Rail Output Buffers ♦ ...

Page 2

Low-Power, 8-Bit Octal DAC with Rail-to-Rail Output Buffers ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0.3V to +6V DD DIN, DOUT, CS, SCLK, LDAC to GND.....................-0.3V to +6V REF to GND ................................................-0. OUT_ to GND ...........................................................-0. ...

Page 3

Low-Power, 8-Bit Octal DAC ELECTRICAL CHARACTERISTICS (MAX5258) (continued +4.5V to +5.5V +4.096V, GND = REF values are +5V and T = +25°C PARAMETER SYMBOL Input Current Input ...

Page 4

Low-Power, 8-Bit Octal DAC with Rail-to-Rail Output Buffers ELECTRICAL CHARACTERISTICS (MAX5259 +2.7V to +3.3V +2.5V, GND = REF are +3V, and T = +25°C PARAMETER SYMBOL STATIC ...

Page 5

Low-Power, 8-Bit Octal DAC ELECTRICAL CHARACTERISTICS (MAX5259) (continued +2.7V to +3.3V +2.5V, GND = REF are +3V, and T = +25°C PARAMETER SYMBOL Digital Feedthrough Digital-to-Analog Glitch ...

Page 6

Low-Power, 8-Bit Octal DAC with Rail-to-Rail Output Buffers TIMING CHARACTERISTICS (MAX5259 +2.5V, GND = 100pF, T REF DOUT T = +25°C.) A PARAMETER SYMBOL V Rise-to-CS Fall-Setup Time t DD VDCS LDAC Pulse Width ...

Page 7

Low-Power, 8-Bit Octal DAC (T = +25°C, unless otherwise noted.) A DAC ZERO-CODE OUTPUT VOLTAGE vs. OUTPUT SINK CURRENT 800 V = +3V DD 700 600 500 400 300 200 100 DAC OUTPUT ...

Page 8

Low-Power, 8-Bit Octal DAC with Rail-to-Rail Output Buffers (T = +25°C, unless otherwise noted.) A SUPPLY CURRENT vs. REFERENCE VOLTAGE (V = +5V) DD 1.8 1.6 1.4 ALL DAC CODES = FF HEX 1.2 1.0 0.8 ALL DAC CODES ...

Page 9

Low-Power, 8-Bit Octal DAC (T = +25°C, unless otherwise noted.) A WORST-CASE 1LSB DIGITAL STEP CHANGE (NEGATIVE) CS OUTA 1µs/div +4.5V REF POSITIVE SETTLING TIME CS OUTA 2µs/div ...

Page 10

Low-Power, 8-Bit Octal DAC with Rail-to-Rail Output Buffers PIN NAME 1 OUTB DAC B Voltage Output 2 OUTA DAC A Voltage Output 3 GND Ground 4 V Power Supply DD 5 REF Reference Voltage Input Load DAC Input. Driving ...

Page 11

Low-Power, 8-Bit Octal DAC CS SCLK DIN DACA DOUT MODE ...

Page 12

Low-Power, 8-Bit Octal DAC with Rail-to-Rail Output Buffers Table 1. Serial-Interface Programming Commands 16-BIT SERIAL WORD ...

Page 13

Low-Power, 8-Bit Octal DAC Don’t Care 0 (LDAC = X) The no-operation (NOP) command allows data to be shifted through the MAX5258/MAX5259 shift register without affecting the input or DAC registers. This is useful in ...

Page 14

Low-Power, 8-Bit Octal DAC with Rail-to-Rail Output Buffers Don’t Care 1 (LDAC = X) All eight DAC registers are updated with shift-register data. This command allows all DACs to be set to any analog value ...

Page 15

Low-Power, 8-Bit Octal DAC LDAC Operation (Hardware) LDAC is typically used in 4-wire interfaces (Figure 4). This command is level sensitive, and it allows asyn- chronous hardware control of the DAC outputs. With LDAC low, all eight DAC registers ...

Page 16

Low-Power, 8-Bit Octal DAC with Rail-to-Rail Output Buffers DIN SCLK LDAC CS1 CS2 CS3 CS MAX5258/ LDAC MAX5259 SCLK DIN Figure 4. Multiple MAX5258’s Sharing One DIN Line. (Simultaneously Update by Strobing an Individual CS ) SCLK MAX5258/ DIN ...

Page 17

Low-Power, 8-Bit Octal DAC REF LSB DECODER DAC A Figure 8. DAC Simplified Circuit Diagram SYSTEM GND OUTB OUTA GND V DD REF LDAC Figure 10. Suggested PC Board Layout ...

Page 18

Low-Power, 8-Bit Octal DAC with Rail-to-Rail Output Buffers +3V REFERENCE INPUT REF V DD DAC A DAC B DAC C DAC D DAC E DAC F DAC G DAC H MAX5258/ MAX5259 Figure 11. Unipolar Output Circuit 18 ______________________________________________________________________________________ ...

Page 19

Low-Power, 8-Bit Octal DAC with Rail-to-Rail Output Buffers DOUT LDAC DECODE CONTROL INPUT REGISTER A INPUT REGISTER B INPUT REGISTER C 16-BIT INPUT SHIFT REGISTER REGISTER D INPUT REGISTER E INPUT REGISTER F INPUT REGISTER G INPUT SR REGISTER ...

Page 20

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 20 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2001 Maxim Integrated Products Package Information ...

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