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Part: MAX5142EUB
Category:
Data Conversion
-> DAC (Digital to Analog Converters)
Description: MAX5141, MAX5142, MAX5143, MAX5144 +3V/+5V, Serial-Input, Voltage-Output, 14-Bit DACs
Company: Maxim Integrated Products
Datasheet: Download MAX5142EUB datasheet File size : 393 kB
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Datasheet text preview:
19-1849; Rev 1; 5/01
+3V/+5V, Serial-Input, Voltage-Output, 14-Bit DACs
General Description
The MAX5141MAX5144 are serial-input, voltage-output, 14-bit digital-to-analog converters (DACs) in tiny µMAX packages, 50% smaller than comparable DACs in an 8-pin SO. They operate from low +3V (MAX5143/ MAX5144) or +5V (MAX5141/MAX5142) single supplies. They provide 14-bit performance (±1LSB INL and DNL) over temperature without any adjustments. The DAC output is unbuffered, resulting in a low supply current of 120µA and a low offset error of 2LSBs. The DAC output range is 0V to VREF. For bipolar operat i o n , matched scaling resistors are provided in the MAX5142/MAX5144 for use with an external precision op amp (such as the MAX400), generating a ±VREF output swing. A 16-bit serial word is used to load data into the DAC latch. The 25MHz, 3-wire serial interface is compatible with SPITM/QSPITM/MICROWIRETM, and can interface directly with optocouplers for applications requiring isolation. A power-on reset circuit clears the DAC output to code 0 (MAX5141/MAX5143) or code 8192 (MAX5142/ MAX5144) when power is initially applied. A logic low on CLR asynchronously clears the DAC outp u t to code 0 (MAX5141/MAX5143) or code 8192 (MAX5142/MAX5144), independent of the serial interface. The MAX5141/MAX5143 are available in 8-pin µMAX packages and the MAX5142/MAX5144 are available in 10-pin µMAX packages. o Low 120µA Supply Current o Fast 1µs Settling Time o 25MHz SPI/QSPI/MICROWIRE-Compatible Serial Interface o VREF Range Extends to VDD o +5V (MAX5141/MAX5142) or +3V (MAX5143/MAX5144) Single-Supply Operation o Full 14-Bit Performance Without Adjustments o Unbuffered Voltage Output Directly Drives 60k Loads o Power-On Reset Circuit Clears DAC Output to Code 0 (MAX5141/MAX5143) or Code 8192 (MAX5142/MAX5144) o Schmitt-Trigger Inputs for Direct Optocoupler Interface o Asynchronous CLR
Features
o Miniature (3mm x 5mm) 8-Pin µMAX Package
MAX5141MAX5144
Pin Configurations
TOP VIEW
REF 1
8 GND
REF 1 CS 2 SCLK 3
10 GND 9 VDD
Applications
High-Resolution and Gain Adjustment Industrial Process Control Automated Test Equipment Data-Acquisition Systems
CS
2
SCLK 3 DIN 4
MAX5141 MAX5143
7 VDD 6 OUT 5 CLR
MAX5142 MAX5144
8 RFB 7 INV 6 OUT
DIN 4 CLR 5
µMAX
µMAX
Ordering Information
PART MAX5141EUA MAX5142EUB MAX5143EUA MAX5144EUB TEMP. RANGE -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C PIN-PACKAGE 8 µMAX 10 µMAX 8 µMAX 10 µMAX INL (LSB) ±1 ±1 ±1 ±1 SUPPLY RANGE (V) 5 5 3 3 OUTPUT SWING Unipolar Bipolar Unipolar Bipolar
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, Serial-Input, Voltage-Output, 14-Bit DACs MAX5141MAX5144
ABSOLUTE MAXIMUM RATINGS
VDD to GND .....-0.3V to +6V CS, SCLK, DIN, CLR to GND ..-0.3V to +6V REF to GND......-0.3V to (VDD + 0.3V) OUT, INV to GND .....-0.3V to VDD RFB to INV ..........-6V to +6V RFB to GND........-6V to +6V Maximum Current into Any Pin...........50mA Continuous Power Dissipation (TA = +70°C) 8-Pin µMAX (derate 4.5mW/°C above +70°C)......362mW 10-Pin µMAX (derate 5.6mW/°C above +70°C)....444mW Operating Temperature Ranges MAX514_ EUA .........-40°C to +85°C MAX514_ EUB .........-40°C to +85°C Storage Temperature Range .....-65°C to +150°C Maximum Die Temperature....+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 = +3V (MAX5143/MAX5144) or +5V (MAX5141/MAX5142), VREF = +2.5V, TA = TMIN to TMAX, CL = 10pF, GND = 0, RL = , unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL CONDITIONS MIN 14 ±0.5 ±0.5 ±0.05 ±10 ±0.1 ROUT (Note 2) RFB/RINV Ratio error BZSTC PSR +2.7V VDD +3.3V (MAX5143/MAX5144) +4.5V VDD +5.5V (MAX5141/MAX5142) (Note 3) Unipolar mode Bipolar mode 2.0 10 6 15 1 7 0.2 ±0.5 ±1 ±1 VDD 6.2 1 ±0.03 ±20 ±1 ±1 ±2 TYP MAX UNITS Bits LSB LSB LSB ppm/°C LSB ppm/°C k
STATIC PERFORMANCE--ANALOG SECTION Resolution N Differential Nonlinearity Integral 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) DNL INL ZSE ZSTC Guaranteed monotonic MAX514_
%
LSB ppm/°C LSB
VREF RREF
V k
DYNAMIC PERFORMANCE--ANALOG SECTION Voltage-Output Slew Rate SR (Note 5) Output Settling Time DAC Glitch Impulse Digital Feedthrough To ±1/2LSB of FS Major-carry transition Code = 0000 hex; CS = VDD; SCLK, DIN = 0V to VDD levels
V/µs µs nV-s nV-s
2
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+3V/+5V, Serial-Input, Voltage-Output, 14-Bit DACs MAX5141MAX5144
ELECTRICAL CHARACTERISTICS (continued)
PARAMETER Reference -3dB Bandwidth Reference Feedthrough Signal-to-Noise Ratio Reference Input Capacitance SNR CINREF Code = 0000 hex Code = 3FFF hex 2.4 0.8 ±1 (Note 6) 3 0.15 MAX5143/MAX5144 MAX5141/MAX5142 All digital inputs at VDD or GND All digital inputs at VDD or GND MAX5143/MAX5144 MAX5141/MAX5142 2.7 4.5 0.12 0.36 0.60 3.6 5.5 0.20 10 SYMBOL BW (VDD = +3V (MAX5143/MAX5144) or +5V (MAX5141/MAX5142), VREF = +2.5V, TA = TMIN to TMAX, CL = 10pF, GND = 0, RL = , unless otherwise noted. Typical values are at TA = +25°C.) CONDITIONS Code = 3FFF hex Code = 0000 hex, VREF = 1VP-P at 100kHz MIN TYP 1 1 92 70 170 MAX UNITS MHz mVP-P dB pF DYNAMIC PERFORMANCE--REFERENCE SECTION
STATIC PERFORMANCE--DIGITAL INPUTS Input High Voltage Input Low Voltage Input Current Input Capacitance Hysteresis Voltage POWER SUPPLY Positive Supply Range (Note 7) Positive Supply Current Power Dissipation VDD IDD PD V mA mW VIH VIL IIN CIN VH V V µA pF V
TIMING CHARACTERISTICS
(VDD = +2.7V to +3.3V (MAX5143/MAX5144), VDD = +4.5V to +5.5V (MAX5141/MAX5142), VREF = +2.5V, GND = 0, CMOS inputs, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Figure 1) 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 CLR Pulse Width Low VDD High to CS Low (Power-Up Delay) SYMBOL fCLK tCH tCL tCSS0 tCSS1 tCSH0 tCSH1 tDS tDH tCLW (Note 6) 20 20 15 15 35 20 15 0 20 20 CONDITIONS MIN TYP MAX 25 UNITS MHz ns ns ns ns ns ns ns ns ns µs
Note 1: Gain error tested at VREF = +2.0V, +2.5V, and +3.0V (MAX5143/MAX5144) or VREF = +2.0V, +2.5V, +3.0V, and +5.0V (MAX5141/MAX5142). Note 2: ROUT tolerance is typically ±20%. Note 3: Min/max range guaranteed by gain-error test. Operation outside min/max limits will result in degraded performance. Note 4: Reference input resistance is code dependent, minimum at 2155 hex in unipolar mode, 1155 hex in bipolar mode. Note 5: Slew-rate value is measured from 10% to 90%. Note 6: Guaranteed by design. Not production tested. Note 7: Guaranteed by power-supply rejection test and Timing Characteristics. _______________________________________________________________________________________ 3
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