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Part: MAX552E
Category:
Data Conversion
-> DAC (Digital to Analog Converters)
Description: +3v,12-bit,serial Multiplying DAC in 10-pin Umax Package
Company: Maxim Integrated Products
Datasheet: Download MAX552E datasheet File size : 292 kB
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Datasheet text preview:
19-1260; Rev 1; 9/02
+3V/+5V, 12-Bit, Serial, Multiplying DACs in 10-Pin µMAX Package
_______________General Description
The MAX551/MAX552 are 12-bit, current-output, 4-quadrant multiplying digital-to-analog converters (DACs). These devices are capable of providing unipolar or bipolar outputs when operating from either a single +5V (MAX551) or +3V (MAX552) power supply. An internal p o w e r - o n - r e s e t circuit clears all DAC registers on power-up, setting the DAC output voltage to 0V. The SPITM/QSPITM and MICROWIRETM-compatible 3wire serial interface saves board space and reduces p o w e r dissipation compared with parallel-interface devices. The MAX551/MAX552 feature double-buffered interface logic with a 12-bit input register and a 12-bit DAC register. Data in the DAC register sets the DAC output voltage. Data is loaded into the input register through the serial interface. The LOAD input transfers data from the input register to the DAC register, updating the DAC output voltage. The MAX551/MAX552 are available in an 8-pin DIP package or a space-saving 10-pin µMAX package. The µMAX package provides an asynchronous clear (CLR) input that clears all DAC registers when pulled to GND, setting the output voltage to 0V.
____________________________Features
o Single-Supply Operation: +4.5V to +5.25V (MAX551) +2.7V to +3.6V (MAX552) o 12.5MHz 3-Wire Serial Interface o SPI/QSPI and MICROWIRE Compatible o Power-On Reset Clears DAC Output to Zero o Asynchronous Clear Input Clears DAC Output to Zero o Voltage Mode or Bipolar Mode Operation with a Single Power Supply o Schmitt-Trigger Digital Inputs for Direct Optocoupler Interface o 0.4µA Supply Current o 10-Pin µMAX Package
MAX551/MAX552
______________Ordering Information
PART MAX551ACPA MAX551BCPA MAX551ACUB MAX551BCUB MAX551AEPA MAX551BEPA MAX551AEUB MAX551BEUB TEMP RANGE 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C PINPACKAGE 8 Plastic DIP 8 Plastic DIP 10 µMAX 10 µMAX 8 Plastic DIP 8 Plastic DIP 10 µMAX 10 µMAX LINEARITY (LSB) ±1/2 ±1 ±1/2 ±1 ±1/2 ±1 ±1/2 ±1
________________________Applications
Automatic Calibration Gain Adjustment Transducer Drivers Process-Control I/O Boards Digitally Controlled Filters Motion-Controlled Systems µP-Controlled Systems Programmable Amplifiers/Attenuators
Ordering Information continued at end of data sheet.
________________Functional Diagram
REF RFB 12-BIT D/A CONVERTER CLR* LOAD RFB OUT AGND* VDD 12-BIT DAC REGISTER POWER-ON RESET GND
_________________Pin Configurations
TOP VIEW
OUT 1 GND 2 VDD 3 LOAD 4 8 RFB 7 REF OUT 1 AGND 2 GND 3 6 SCLK VDD 4 5 DIN LOAD 5 10 RFB 9 REF
MAX551 MAX552
MAX551 MAX552
8 CLR 7 SCLK 6 DIN
MAX551 MAX552
12-BIT SHIFT REGISTER *µMAX PACKAGE ONLY DIN
SCLK
DIP
µMAX
SPI and QSPI are trademarks of Motorola Inc. MICROWIRE is a trademark of National Semiconductor Corp. ________________________________________________________________ Maxim Integrated Products 1
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, 12-Bit, Serial, Multiplying DACs in 10-Pin µMAX Package MAX551/MAX552
ABSOLUTE MAXIMUM RATINGS
VDD to GND......6V REF, RFB to GND........±12V Digital Inputs (SCLK, DIN, LOAD, CLR) to GND ............-0.3V to 6V OUT to GND .....-0.3V to (VDD + 0.3V) AGND to DGND .........±0.3V Continuous Power Dissipation (TA = +70°C) Plastic DIP (derate 9.09mW/°C above +70°C) ....727mW µMAX (derate 5.60mW/°C above +70°C) ............444mW Operating Temperature Ranges MAX55_ _C_ _......0°C to +70°C MAX55_ _E_ _ .........-40°C to +85°C Storage Temperature Range .....-65°C to +150°C Lead Temperature (soldering, 10s) .........+300°C
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--MAX551
(VDD = +4.5V to +5.25V, VREF = 5V, OUT = AGND = GND, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER STATIC PERFORMANCE Resolution Integral Nonlinearity Differential Nonlinearity Gain Error Gain Tempco (Gain/Temp) Power-Supply Rejection PSR N INL DNL Guaranteed monotonic over temperature Using internal feedback resistor (RFB) MAX551A MAX551B MAX551A MAX551B MAX551A MAX551B ±0.2 12 ±1/2 ±1 ±1/2 ±1 ±1 ±2 ±1 2 Bits LSB LSB LSB ppm/°C ppm/% SYMBOL CONDITIONS MIN TYP MAX UNITS
Using internal feedback resistor (RFB) (Note 2) VDD = +5%, -10%
DYNAMIC PERFORMANCE (Note 3) TA = +25°C, to 1/2LSB, OUT load is 100||13pF, DAC register alternately loaded with 1s and 0s VREF = 0V, OUT load is 100||13pF, DAC register alternately loaded with 1s and 0s VREF = 5VP-P at 10kHz, DAC register loaded with all 0s THD VREF = 6VRMS at 1kHz, DAC register loaded with all 1s 10Hz to 100kHz, measured between RFB and OUT
Current Settling Time
tS
0.08
1
µs
Digital-to-Analog Glitch
0.65
20
nV-s
AC Feedthrough at OUT
0.3
1
mVP-P dB nV/Hz
Total Harmonic Distortion
-85
Output Noise-Voltage Density
13
15
2
_______________________________________________________________________________________
+3V/+5V, 12-Bit, Serial, Multiplying DACs in 10-Pin µMAX Package
ELECTRICAL CHARACTERISTICS--MAX551 (continued)
(VDD = +4.5V to +5.25V, VREF = 5V, OUT = AGND = GND, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER REFERENCE INPUT Input Resistance Input Resistance Tempco Reference -3dB Bandwidth ANALOG OUTPUT OUT Leakage Current DAC register loaded with all 0s COUT TA = +25°C TA = TMIN to TMAX 14 20 ±0.15 ±5 ±25 20 30 nA BW VOUT = 0.31VP-P, RL = 50, code = full-scale RREF Measured between REF and OUT 7 11 6.5 725 15 k ppm/°C kHz SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX551/MAX552
OUT Capacitance DIGITAL INPUTS Input High Voltage Input Low Voltage Input Hysteresis
Code = zero scale (Note 2) Code = full scale (Note 2)
pF
VIH VIL HYST LOAD, CLR, DIN, and SCLK, VDD = 5V CLR SCLK, LOAD, DIN V CLR = VDD V CLR = 0V Inputs at 0V or VDD
2.4 0.8 156 ±1 18 100 ±1 8
V V mV
Input Leakage Current
IIN
µA
Input Capacitance SWITCHING CHARACTERISTICS SCLK Pulse Width High SCLK Pulse Width Low DIN Data to SCLK Setup DIN Data to SCLK Hold LOAD Pulse Width LSB SCLK to LOAD LOAD High to SCLK CLR Pulse Width POWER SUPPLY Supply Voltage Supply Current
CIN
Inputs at 0V or VDD (Note 2)
pF
tCH tCL tDS tDH tLD tSL tLC tCLR
25 25 15 15 20 0 15 20
ns ns ns ns ns ns ns ns
VDD IDD All digital inputs at VIL or VIH, CLR = VDD All digital inputs at 0V or VDD, CLR = VDD
4.50 0.5 0.4
5.25 1.5 5
V mA µA
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3
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