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Part: MAX5159EPE
Category:
Data Conversion
-> DAC (Digital to Analog Converters)
Description: MAX5158, MAX5159 Low-Power, Dual, 10-Bit, Voltage-output DACs With Serial Interface
Company: Maxim Integrated Products
Datasheet: Download MAX5159EPE datasheet File size : 393 kB
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Datasheet text preview:
19-1315; Rev 1; 12/97
Low-Power, Dual, 10-Bit, Voltage-Output DACs with Serial Interface MAX5158/MAX5159
_______________General Description
T h e MAX5158/MAX5159 low-power, serial, voltageoutput, dual, 10-bit digital-to-analog converters (DACs) consume only 500µA from a single +5V (MAX5158) or +3V (MAX5159) supply. These devices feature Rail-toRail® output swing and are available in a space-saving 16-pin QSOP package. To maximize dynamic range, the DAC output amplifiers are configured with an internal gain of +2V/V. T h e 3-wire serial interface is SPITM/QSPITM and M i c r o w i r e TM compatible. Each DAC has a doublebuffered input organized as an input register followed by a DAC register, which allows the input and DAC registers to be updated independently or simultaneously with a 16-bit serial word. Additional features include a 2µA programmable shutdown, hardware-shutdown lockout, a s e p a r a t e reference-voltage input for each DAC that accepts AC and DC signals, and an active-low clear input (CL) that resets all registers and DACs to zero. The MAX5158/MAX5159 provide a programmable logic pin for added functionality and a serial-data output pin for daisy chaining.
____________________________Features
o 10-Bit Dual DAC with Internal Gain of +2V/V o Rail-to-Rail Output Swing o 8µs Settling Time o Single-Supply Operation: +5V (MAX5158) +3V (MAX5159) o Low Quiescent Current: 500µA (normal operation) 2µA (shutdown mode) o SPI/QSPI and Microwire Compatible o Available in Space-Saving 16-Pin QSOP Package o Power-On Reset Clears Registers and DACs to Zero o Adjustable Output Offset
______________Ordering Information
PART MAX5158CPE MAX5158CEE MAX5158EPE MAX5158EEE MAX5158MJE TEMP. RANGE 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -55°C to +125°C PIN-PACKAGE 16 Plastic DIP 16 QSOP 16 Plastic DIP 16 QSOP 16 CERDIP*
________________________Applications
Digital Offset and Gain Adjustment µP-Controlled Systems Motion Control Remote Industrial Controls
Ordering Information continued at end of data sheet. *Contact factory for availability.
_________________________________________________________Functional Diagram
DOUT CL PDL DGND AGND VDD REFA OSA DECODE CONTROL R
R INPUT REG A DAC REG A DAC A R OUTA OSB
16-BIT SHIFT REGISTER SR CONTROL
MAX5158 MAX5159
LOGIC OUTPUT SCLK UPO INPUT REG B DAC REG B DAC B
R OUTB
CS
DIN
REFB
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd. Microwire is a trademark of National Semiconductor Corp. SPI and QSPI are trademarks of Motorola, Inc.
________________________________________________________________ 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 408-737-7600 ext. 3468.
Low-Power, Dual, 10-Bit Voltage-Output DACs with Serial Interface MAX5158/MAX5159
ABSOLUTE MAXIMUM RATINGS
VDD to AGND...-0.3V to +6V VDD to DGND ..-0.3V to +6V AGND to DGND .........±0.3V OSA, OSB to AGND......(AGND - 4V) to (VDD + 0.3V) REF_, OUT_ to AGND.........-0.3V to (VDD + 0.3V) Digital Inputs (SCLK, DIN, CS, CL, PDL) to DGND...(-0.3V to +6V) Digital Outputs (DOUT, UPO) to DGND ......-0.3V to (VDD + 0.3V) Maximum Current into Any Pin ........±20mA Continuous Power Dissipation (TA = +70°C) Plastic DIP (derate 10.5mW/°C above +70°C) ..842mW QSOP (derate 8.30mW/°C above +70°C) ..........667mW CERDIP (derate 10.00mW/°C above +70°C) .....800mW Operating Temperature Ranges MAX515_ _C_ E .......0°C to +70°C MAX515_ _E_ E ....-40C° to +85°C MAX515_ _MJE............-55°C to +125°C Storage Temperature Range .....-65°C to +160°C Lead Temperature (soldering, 10sec) .....+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--MAX5158
(VDD = +5V ±10%, VREFA = VREFB = 2.048V, RL = 10k, CL = 100pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA= +25°C (OS_ tied to AGND for a gain of +2V/V).) PARAMETER STATIC PERFORMANCE Resolution Integral Nonlinearity Differential Nonlinearity Offset Error Offset Tempco Gain Error Gain-Error Tempco VDD Power-Supply Rejection Ratio REFERENCE INPUT Reference Input Range Reference Input Resistance REF RREF Minimum with code 1558 hex Input code = 1FF8 hex, VREF_ = 0.67Vp-p at 0.75VDC Input code = 0000 hex, VREF_ = (VDD - 1.4 Vp-p) at 1kHz SINAD Input code = 1FF8 hex, VREF_ = 1Vp-p at 1.25VDC, f = 25kHz CL, PDL, CS, DIN, SCLK CL, PDL, CS, DIN, SCLK 200 VIN = 0V to VDD 0.001 8 ±1 3 0.8 0 18 25 VDD - 1.4 V k PSRR Normalized to 2.048V 2.7V VDD 5.5V INL DNL VOS_ TCVOS (Note 1) Guaranteed monotonic Code = 2 Normalized to 2.048V 4 -0.1 4 20 260 1 10 ±1 ±1 ±6 Bits LSB LSB mV ppm/°C LSB ppm/°C µV/V SYMBOL CONDITIONS MIN TYP MAX UNITS
MULTIPLYING-MODE PERFORMANCE Reference 3dB Bandwidth Reference Feedthrough Signal-to-Noise plus Distortion Ratio DIGITAL INPUTS Input High Voltage Input Low Voltage Input Hysteresis Input Leakage Current Input Capacitance VIH VIL VHYS IIN CIN V V mV µA pF 300 -82 75 kHz dB dB
2
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Low-Power, Dual, 10-Bit, Voltage-Output DACs with Serial Interface
ELECTRICAL CHARACTERISTICS--MAX5158 (continued)
(VDD = +5V ±10%, VREFA = VREFB = 2.048V, RL = 10k, CL = 100pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA= +25°C (OS_ tied to AGND for a gain of +2V/V).) PARAMETER DIGITAL OUTPUTS (DOUT, UPO) Output High Voltage Output Low Voltage DYNAMIC PERFORMANCE Voltage Output Slew Rate Output Settling Time Output Voltage Swing OSA or OSB Input Resistance Time Required to Exit Shutdown Digital Feedthrough Digital Crosstalk POWER SUPPLIES Positive Supply Voltage Power-Supply Current Power-Supply Current in Shutdown Reference Current in Shutdown TIMING CHARACTERISTICS SCLK Clock Period SCLK Pulse Width High SCLK Pulse Width Low CS Fall to SCLK Rise Setup Time SCLK Rise to CS Rise Hold Time SDI Setup Time SDI Hold Time SCLK Rise to DOUT Valid Propagation Delay SCLK Fall to DOUT Valid Propagation Delay SCLK Rise to CS Fall Delay CS Rise to SCLK Rise Hold CS Pulse Width High tCP tCH tCL tCSS tCSH tDS tDH tDO1 tDO2 tCS0 tCS1 tCSW CLOAD = 200pF CLOAD = 200pF 10 40 100 (Note 4) 100 40 40 40 0 40 0 80 80 VDD IDD (Note 3) 4.5 0.5 2 0 CS = VDD, fDIN = 100kHz, VSCLK = 5Vp-p ROS_ SYMBOL VOH VOL SR To 1/2LSB of full-scale, VSTEP = 4V Rail-to-rail (Note 2) 24 CONDITIONS ISOURCE = 2mA ISINK = 2mA MIN VDD - 0.5 0.13 0.75 8 0 to VDD 34 25 5 5 5.5 0.65 10 ±1 0.4 TYP MAX UNITS V V V/µs µs V k µs nV-s nV-s V mA µA µA ns ns ns ns ns ns ns ns ns ns ns ns
MAX5158/MAX5159
IDD(SHDN) (Note 3)
Note 1: Accuracy is specified from code 2 to code 1023. Note 2: Accuracy is better than 1LSB for VOUT_ greater than 6mV and less than VDD - 50mV. Guaranteed by PSRR test at the end points. Note 3: Digital inputs are set to either VDD or DGND, code = 0000 hex, RL = . Note 4: SCLK minimum clock period includes rise and fall times.
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