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Part: MAX5544C
Category:
Data Conversion
-> DAC (Digital to Analog Converters)
Description: Low-Cost, +5V, Serial-Input, Voltage-Output, 14-Bit DAC
Company: Maxim Integrated Products
Datasheet: Download MAX5544C datasheet File size : 292 kB
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Datasheet text preview:
19-1571; Rev 0; 12/99
Low-Cost, +5V, Serial-Input, Voltage-Output, 14-Bit DAC
General Description
T h e MAX5544 serial-input, voltage-output, 14-bit monotonic digital-to-analog converter (DAC) operates f r o m a single +5V supply. The DAC output is unbuffered, resulting in low 0.3mA supply current and low 1LSB offset error. The DAC output range is 0V to VREF. The DAC latch accepts a 16-bit serial word. A p o w e r - o n reset circuit clears the DAC output to 0V (unipolar mode) when power is initially applied. T h e 10MHz 3-wire serial interface is SPITM/QSPITM/ MICROWIRETM compatible and interfaces directly with optocouplers for applications requiring isolation. The MAX5544 is available in an 8-pin SO package. o +5V Single-Supply Operation o Low Power: 1.5mW o 1µs Settling Time o Unbuffered Voltage Output Directly Drives 60k Loads o SPI/QSPI/MICROWIRE-Compatible Serial Interface o Power-On Reset Circuit Clears DAC Output to 0V (unipolar mode) o Schmitt Trigger Inputs for Direct Optocoupler Interface
Features
o Full 14-Bit Performance Without Adjustments
MAX5544
Applications
High-Resolution Offset and Gain Adjustment Industrial Process Control Automated Test Equipment Data Acquisition Systems
PART MAX5544CSA MAX5544ESA
Ordering Information
TEMP. RANGE 0°C to +70°C -40°C to +85°C PIN-PACKAGE 8 SO 8 SO
Pin Configuration
TOP VIEW
Functional Diagram
VDD
MAX5544
REF OUT 1 AGND 2 REF 3 CS 4 8 VDD 14-BIT DAC OUT AGND CS DIN SCLK 16-BIT DATA LATCH CONTROL LOGIC SERIAL INPUT REGISTER
MAX5544
7 DGND 6 DIN 5 SCLK
SO
DGND
SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp. ________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 1-800-835-8769.
Low-Cost, +5V, Serial-Input, Voltage-Output, 14-Bit DAC MAX5544
ABSOLUTE MAXIMUM RATINGS
VDD to DGND...-0.3V to +6V CS, SCLK, DIN to DGND.........-0.3V to +6V REF to AGND.....-0.3V to (VDD +0.3V) AGND to DGND.....-0.3V to +0.3V OUT to AGND, DGND.......... ...-0.3V to VDD Maximum Current into Any Pin...........50mA Continuous Power Dissipation (TA = +70°C) 8-Pin SO (derate 5.88mW/°C above +70°C).......471mW Operating Temperature Ranges MAX5544CSA .....0°C to +70°C MAX5544ESA ........-40°C to +85°C Junction Temperature ......+150°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
(VDD = +5V ±5%, VREF = +2.5V, VAGND = VDGND = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER Resolution Differential Nonlinearity Integral Nonlinearity Zero-Code Offset Error Zero-Code Tempco Gain Error (Note 1) Gain-Error Tempco DAC Output Resistance Power-Supply Rejection REFERENCE INPUT Reference Input Range Reference Input Resistance (Note 4) Voltage-Output Slew Rate Output Settling Time VREF RREF (Note 3) 2.0 11.5 3.0 V k ROUT PSR (Note 2) 4.75V VDD 5.25V SYMBOL N DNL INL ZSE ZSTC Guaranteed monotonic VDD = 5V TA = +25°C TA = TMIN to TMAX TA = TMIN to TMAX TA = +25°C TA = TMIN to TMAX ±0.1 6.25 ±1.0 ±0.05 ±5 ±10 CONDITIONS MIN 14 ±0.5 ±4 ±1.0 ±8 ±1 ±2 TYP MAX UNITS Bits LSB LSB LSB ppm/°C LSB ppm/°C k LSB STATIC PERFORMANCE--ANALOG SECTION (RL = )
DYNAMIC PERFORMANCE--ANALOG SECTION (RL = ) SR CL = 10pF (Note 5) To ± /2LSB of FS, CL = 10pF
1
25 1
V/µs µs
2
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Low-Cost, +5V, Serial-Input, Voltage-Output, 14-Bit DAC MAX5544
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +5V ±5%, VREF = +2.5V, VAGND = VDGND = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DAC Glitch Impulse Digital Feedthrough Major-carry transition Code = 0000 hex, CS = VDD, SCLK = VDIN = 0 to VDD levels BW SNR CIN Code = 0000 hex Code = FFFC hex 2.4 0.8 VIN = 0 (Note 6) 0.40 4.75 0.3 1.5 5.25 1.1 ±1 10 Code = FFFC hex Code = 0000 hex, VREF = 1Vp-p at 100kHz 10 10 nVs nVs
DYNAMIC PERFORMANCE--REFERENCE SECTION Reference -3dB Bandwidth Reference Feedthrough Signal-to-Noise Ratio Reference Input Capacitance 1 1 83 75 120 MHz mVp-p dB pF
STATIC PERFORMANCE--DIGITAL INPUTS Input High Voltage Input Low Voltage Input Current Input Capacitance Hysteresis Voltage POWER SUPPLY Positive Supply Range Positive Supply Current Power Dissipation VDD IDD PD V mA mW VIH VIL IIN CIN VH V V µA pF V
TIMING CHARACTERISTICS
(VDD = +5V ±5%, VREF = +2.5V, VAGND = VDGND = 0, CMOS inputs, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SCLK Frequency SCLK Pulse Width High SCLK Pulse Width Low CS Low to SCLK High Setup CS High to SCLK High Setup SCLK High to CS Low Hold SCLK High to CS High Hold DIN to SCLK High Setup DIN to SCLK High Hold VDD High to CS Low (power-up delay) Note 1: Note 2: Note 3: Note 4: Note 5: Note 6: SYMBOL fCLK tCH tCL tCSS0 tCSS1 tCSH0 tCSH1 tDS tDH (Note 6) 45 45 45 45 30 45 40 0 20 CONDITIONS MIN TYP MAX 10 UNITS MHz ns ns ns ns ns ns ns ns µs
Gain error tested at VREF = +2.0V, +2.5V, and +3.0V. ROUT tolerance is typically ±20%. Min/max ranges guaranteed by gain-error test. Operation outside min/max limits will result in degraded performance. Reference input resistance is code dependent, minimum at 8554 hex. Slew-rate value is measured from 0% to 63%. Guaranteed by design. Not production tested.
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