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Part: MAX541
Category:
Data Conversion
-> DAC (Digital to Analog Converters)
-> >14 bit
Description: +5V, Serial-Input, Voltage-output 16-Bit DACs
Company: Maxim Integrated Products
Datasheet: Download MAX541 datasheet File size : 514 kB
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Datasheet text preview:
19-1082; Rev 2; 12/99
+5V, Serial-Input, Voltage-Output, 16-Bit DACs
General Description
The MAX541/MAX542 are serial-input, voltage-output, 16-bit digital-to-analog converters (DACs) that operate from a single +5V supply. They provide 16-bit performance (±1LSB INL and DNL) over temperature without any adjustments. The DAC output is unbuffered, resulting in a low supply current of 0.3mA and a low offset error of 1LSB. The DAC output range is 0V to VREF. For bipolar operat i o n , matched scaling resistors are provided in the M A X 5 4 2 for use with an external precision op amp ( s u c h as the MAX400), generating a ±V R E F o u t p u t swing. The MAX542 also includes Kelvin-sense connections for the reference and analog ground pins to reduce layout sensitivity. A 16-bit serial word is used to load data into the DAC latch. The 10MHz, 3-wire serial interface is compatible with SPITM/QSPITM/MICROWIRETM, and it also interfaces directly with optocouplers for applications requiring isolation. A power-on reset circuit clears the DAC output to 0V (unipolar mode) when power is initially applied. The MAX541 is available in 8-pin plastic DIP and SO packages. The MAX542 is available in 14-pin plastic DIP and SO packages. 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 16-Bit Performance Without Adjustments
MAX541/MAX542
Ordering Information
PART MAX541ACPA MAX541BCPA MAX541CCPA MAX541ACSA MAX541BCSA MAX541CCSA TEMP. RANGE 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C PIN-PACKAGE 8 Plastic DIP 8 Plastic DIP 8 Plastic DIP 8 SO 8 SO 8 SO INL (LSB) ±1 ±2 ±4 ±1 ±2 ±4
Applications
High-Resolution Offset and Gain Adjustment Industrial Process Control Automated Test Equipment Data-Acquisition Systems
Ordering Information continued at end of data sheet.
Functional Diagrams
VDD RFB RFB INV
General Description
TOP VIEW
REFF REFS
MAX542
RFB 1 OUT 2 14 VDD 13 INV
RINV 16-BIT DAC OUT AGNDF
OUT 1 AGND 2 REF 3 CS 4
8 VDD
AGNDF 3 AGNDS 4 REFS 5
MAX542
12 DGND 11 LDAC 10 DIN 9 N.C. 8 SCLK
MAX541
7 DGND 6 DIN 5 SCLK
REFF 6 CS 7
CS LDAC SCLK DIN
16-BIT DATA LATCH CONTROL LOGIC SERIAL INPUT REGISTER DGND
AGNDS
DIP/SO
DIP/SO
Functional Diagrams continued at end of data sheet.
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.
+5V, Serial-Input, Voltage-Output, 16-Bit DACs MAX541/MAX542
ABSOLUTE MAXIMUM RATINGS
VDD to DGND ..-0.3V to +6V CS, SCLK, DIN, LDAC to DGND ......-0.3V to +6V REF, REFF, REFS to AGND ......-0.3V to (VDD + 0.3V) AGND, AGNDF, AGNDS to DGND......-0.3V to +0.3V OUT, INV to AGND, DGND .....-0.3V to VDD RFB to AGND, DGND........-6V to +6V Maximum Current into Any Pin...........50mA Continuous Power Dissipation (TA = +70°C) 8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) .....727mW 8-Pin SO (derate 5.88mW/°C above +70°C) ........471mW 14-Pin Plastic DIP (derate 10.00mW/°C above +70°C) ...800mW 14-Pin SO (derate 8.33mW/°C above +70°C) ......667mW 14-Pin Ceramic SB (derate 10.00mW/°C above +70°C ..800mW Operating Temperature Ranges MAX541 _C_ A/MAX542_C_D. .....0°C to +70°C MAX541 _E_ A/MAX542_E_D....-40°C to +85°C MAX542CMJD .......-55°C to +125°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, AGND = DGND = 0, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN 16 MAX54_A Integral Nonlinearity Differential Nonlinearity Zero-Code Offset Error Zero-Code Tempco Gain Error (Note 1) Gain-Error Tempco DAC Output Resistance Bipolar Resistor Matching Bipolar Zero Offset Error Bipolar Zero Tempco Power-Supply Rejection REFERENCE INPUT Reference Input Range Reference Input Resistance (Note 4) BZSTC PSR VREF RREF ROUT (Note 2) MAX542 MAX542 MAX542 4.75V VDD 5.25V (Note 3) Unipolar mode MAX542, bipolar mode 2.0 11.5 9.0 25 1 RFB/RINV Ratio error TA = +25°C TA = TMIN to TMAX ±0.5 ±1.0 3.0 INL DNL ZSE ZSTC VDD = 5V Guaranteed monotonic TA = +25°C TA = TMIN to TMAX TA = TMIN to TMAX TA = +25°C TA = TMIN to TMAX ±0.1 6.25 1.0 ±0.015 ±10 ±20 % LSB ppm/°C LSB V k ±0.05 ±5 ±10 MAX54_B MAX54_C ±0.5 ±0.5 ±0.5 ±0.5 ±1.0 ±2.0 ±4.0 ±1.0 ±1 ±2 LSB LSB ppm/°C LSB ppm/°C k LSB TYP MAX UNITS Bits STATIC PERFORMANCE--ANALOG SECTION (RL = ) Resolution N
DYNAMIC PERFORMANCE--ANALOG SECTION (RL = , unipolar mode) Voltage-Output Slew Rate SR CL = 10pF (Note 5) Output Settling Time to ± /2LSB of FS, CL = 10pF
1
V/µs µs
2
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+5V, Serial-Input, Voltage-Output, 16-Bit DACs
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +5V ±5%, VREF = +2.5V, AGND = DGND = 0, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER DAC Glitch Impulse Digital Feedthrough SYMBOL CONDITIONS Major-carry transition Code = 0000 hex; CS = VDD; LDAC = 0; SCLK, DIN = 0 to VDD levels BW SNR CIN Code = 0000 hex Code = FFFF hex 2.4 0.8 VIN = 0 (Note 6) 0.40 4.75 0.3 1.5 5.25 1.1 ±1 10 Code = FFFF hex Code = 0000 hex, VREF = 1Vp-p at 100kHz MIN TYP 10 10 MAX UNITS nVs nVs
MAX541/MAX542
DYNAMIC PERFORMANCE--REFERENCE SECTION Reference -3dB Bandwidth Reference Feedthrough Signal-to-Noise Ratio Reference Input Capacitance 1 1 92 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, AGND = DGND = 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 LDAC Pulse Width CS High to LDAC Low Setup 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 tLDAC tLDACS MAX542 MAX542 (Note 6) (Note 6) 45 45 45 45 30 45 40 0 50 50 20 CONDITIONS MIN TYP MAX 10 UNITS MHz ns ns 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 range guaranteed by gain-error test. Operation outside min/max limits will result in degraded performance. Reference input resistance is code dependent, minimum at 8555 hex. Slew-rate value is measured from 0% to 63%. Guaranteed by design. Not production tested. _______________________________________________________________________________________ 3
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