max5105ewpt Maxim Integrated Products, Inc., max5105ewpt Datasheet

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max5105ewpt

Manufacturer Part Number
max5105ewpt
Description
Nonvolatile, Quad, 8-bit Dacs
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
The MAX5105/MAX5106 nonvolatile, quad, 8-bit digital-
to-analog converters (DACs) operate from a single
+2.7V to +5.5V supply. An internal EEPROM stores the
DAC states even after power is removed. Data from
these nonvolatile registers automatically initialize the
DAC outputs and operating states during power-up.
Precision internal buffers swing Rail-to-Rail
reference input range includes both ground and the
positive rail.
The MAX5105/MAX5106 feature a software-controlled
10µA shutdown mode and a mute state that drives the
DAC outputs to their respective REFL_ voltages. The
MAX5105 includes an asynchronous MUTE input, as
well as a RDY/BSY output that indicates the status of
the nonvolatile memory.
The MAX5105 is available in a 20-pin QSOP and 20-pin
wide SO packages, and the MAX5106 is available in a
16-pin QSOP package.
________________________Applications
19-1925; Rev 1; 6/01
Functional Diagram appears at end of data sheet.
Rail-to-Rail is a trademark of Nippon Motorola, Ltd.
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
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.
Digital Gain and Offset Adjustments
Programmable Attenuators
Portable Instruments
Power-Amp Bias Control
TOP VIEW
________________________________________________________________ Maxim Integrated Products
RDY/BSY
General Description
REFH1
REFH0
DOUT
MUTE
GND
CLK
V
DIN
CS
DD
10
1
2
3
4
5
6
7
8
9
20 QSOP/SOIC
MAX5105
Nonvolatile, Quad, 8-Bit DACs
®
, and the
20
19
18
17
16
15
14
13
12
11
REFH2
REFH3
OUT0
OUT1
OUT2
OUT3
REFL3
REFL2
REFL1
REFL0
o On-Chip EEPROM Stores DAC States
o Power-On Reset Initialization of All Registers to
o +2.7V to +5.5V Single-Supply Operation
o Four 8-Bit DACs with Independent High and Low
o Ground to V
o Rail-to-Rail Output Buffers
o Low 1mA Supply Current
o Low Power 10µA (max) Shutdown Mode
o Small 20- or 16-Pin QSOP Package
o SPI™/QSPI™/MICROWIRE™-Compatible Serial
o Asynchronous MUTE Input (MAX5105)
o RDY/BSY Pin to Indicate Memory Status
o Wide Operating Temperature Range
MAX5105EEP
MAX5105EWP
MAX5106EEE
Prestored States
Reference Inputs (MAX5105)
Interface
(MAX5105)
(-40°C to +85°C)
REFH1
REFH0
DOUT
GND
CLK
V
DIN
CS
DD
PART
1
2
6
3
4
5
7
8
MAX5106
16 QSOP
DD
Reference Input Range
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
Ordering Information
16
15
14
13
12
11
10
9
Pin Configurations
REFH2
REFH3
OUT0
OUT1
OUT2
OUT3
REFL1
REFL0
PIN-PACKAGE
20 QSOP
20 SO
16 QSOP
Features
1

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max5105ewpt Summary of contents

Page 1

Rev 1; 6/01 General Description The MAX5105/MAX5106 nonvolatile, quad, 8-bit digital- to-analog converters (DACs) operate from a single +2.7V to +5.5V supply. An internal EEPROM stores the DAC states even after power is removed. Data from these nonvolatile registers ...

Page 2

Nonvolatile, Quad, 8-Bit DACs ABSOLUTE MAXIMUM RATINGS , DIN, CS, CLK, MUTE to GND .............................-0.3V, + DOUT, REFH_, REFL_, RDY/BSY, OUT_ to GND .........................................-0. Maximum Current into Any Pin .........................................±50mA Continuous Power Dissipation (T = +70°C) ...

Page 3

ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.5V, GND = V DD REFH_ V = +3V and T = +25°C PARAMETER SYMBOL Output Current (Note 3) Amplifier Output Resistance (Note 3) DIGITAL INPUTS Input High Voltage ...

Page 4

Nonvolatile, Quad, 8-Bit DACs ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.5V, GND = V DD REFH_ V = +3V and T = +25°C PARAMETER SYMBOL DIGITAL TIMING CLK Period t CLK High Time t CLK ...

Page 5

FFhex GND REFL_ DAC ZERO-CODE OUTPUT VOLTAGE vs. OUTPUT SINK CURRENT 0 +0.2V 0 +5V REFL_ +0.2V REFL_ 0.2 ...

Page 6

Nonvolatile, Quad, 8-Bit DACs = ∞, code = FFhex GND REFL_ REFERENCE INPUT FREQUENCY RESPONSE -10 -15 -20 -25 - 0.5Vp-p SINE-WAVE REF -35 CENTERED AT +2.5V DAC CODE = ...

Page 7

FFhex GND REFL_ POSITIVE SETTLING TIME CS OUT1 1.0 µs/div V = +3. 500kHz DD CLK V = +2.5V CODE = 00 HEX TO FF HEX REFH1 C = ...

Page 8

Nonvolatile, Quad, 8-Bit DACs PIN NAME MAX5105 MAX5106 1 1 REFH1 2 2 REFH0 — RDY/BSY 5 4 CLK DIN 8 7 DOUT 9 — MUTE 10 8 GND 11 ...

Page 9

Table 1. Mute/Shutdown Register Mapping Bit Register (MSB) Mute Mute lin DAC3 DAC2 REFH LSB DECODER ...

Page 10

Nonvolatile, Quad, 8-Bit DACs Table 2. Serial Interface Programming Commands 14-BIT SERIAL WORD START ...

Page 11

Table 2. Serial Interface Programming Commands (continued) 14-BIT SERIAL WORD START ...

Page 12

Nonvolatile, Quad, 8-Bit DACs CS SCLK DIN DACO Figure 2. 3-Wire Interface Timing CS t CSS CLK DIN DOUT Figure 3. Detailed ...

Page 13

Table 3. Nonvolatile Store Command START Table 4. Register Write Command START Table 5. Nonvolatile Read Command START Table 6. Nonvolatile Load ...

Page 14

Nonvolatile, Quad, 8-Bit DACs CS CLK DIN START C1 C0 HIGH IMPEDANCE DOUT OUT_ RDY/BSY (MAX5105 ONLY) Figure 6. Register Write Command Timing Diagram CS CLK DIN START CI CO HIGH IMPEDANCE DOUT RDY/BSY ...

Page 15

CS CLK DIN DOUT OUT_ RDY/BSY Figure 8. Nonvolatile Load Command Timing Diagram OUTPUT VOLTAGE O DAC CODE NEGATIVE OFFSET Figure 9. Effect of Negative Offset (Single Supply) Nonvolatile Load Command The nonvolatile load command writes the contents of the ...

Page 16

Nonvolatile, Quad, 8-Bit DACs This initialization period takes about 80µs with the DAC registers loading first and the mute/shutdown register loading last. During this time, the DAC outputs are held in the mute state and the serial interface is disabled. ...

Page 17

Nonvolatile, Quad, 8-Bit DACs OSCILLATOR DAC0 NONVOLATILE REGISTER RDY/BSY* DAC1 NONVOLATILE REGISTER DOUT 14-BIT SHIFT REGISTER/ COMMAND DECODER DIN DAC2 NONVOLATILE CLK REGISTER CS DAC3 NONVOLATILE REGISTER MUTE/ SHUTDOWN NONVOLATILE REGISTER *MAX5105 ONLY GND MAX5106: REFL2 AND REFL3 ARE INTERNALLY ...

Page 18

Nonvolatile, Quad, 8-Bit DACs 18 ______________________________________________________________________________________ Package Information ...

Page 19

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. Maxim ...

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