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Part: MAX5270AEMH
Category:
Data Conversion
-> DAC (Digital to Analog Converters)
Description: MAX5270 Octal, 13-Bit Voltage-output DAC With Parallel Interface
Company: Maxim Integrated Products
Datasheet: Download MAX5270AEMH datasheet File size : 641 kB
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Datasheet text preview:
19-1711; Rev 1; 1/01
Octal, 13-Bit Voltage-Output DAC with Parallel Interface
General Description
The MAX5270 contains eight 13-bit, voltage-output digital-to-analog converters (DACs). On-chip precision output amplifiers provide the voltage outputs. The device operates from +12V/-12V supplies. Its output voltage swing ranges from 0V to +8.192V and is achieved with no external components. The MAX5270 has three pairs of differential reference inputs; two of these pairs are connected to two DACs each, and a third pair is connected to four DACs. The references are independently controlled, providing different full-scale output voltages to the respective DACs. The MAX5270 operates within the following voltage ranges: VDD = +11.4V to +12.6V, VSS = -11.4V to -12.6V, and VCC = +4.75V to +5.25V. The MAX5270 features double-buffered interface logic with a 13-bit parallel data bus. Each DAC has an input latch and a DAC latch. Data in the DAC latch sets the output voltage. The eight input latches are addressed with three address lines. Data is loaded to the input latch with a single-write instruction. An asynchronous load input (LD) transfers data from the input latch to the DAC latch. The LD input controls all DACs; therefore, all DACs can be updated simultaneously by asserting the LD pin. An asynchronous CLR input sets the output of all eight DACs to the respective DUTGND input of the op amp. Note that CLR is a CMOS input, which is powered by VDD. All other logic inputs are TTL/CMOS compatible. The "A" grade of the MAX5270 has a maximum INL of ±2LSBs, while the "B" grade has a maximum INL of ±4LSBs. Both grades are available in 44-pin MQFP packages. o Eight DACs in a Single Package o Buffered Voltage Outputs o Voltage Swing Between 0 and +8.192V o 22µs Output Settling Time o Drives up to 10,000pF Capacitive Load o 30mV Low Output Glitch o Low Power Consumption: 10mA (typ) o Small 44-Pin MQFP Package o Double-Buffered Digital Inputs o Asynchronous Load Updates All DACs Simultaneously o Asynchronous CLR Forces All DACs to DUTGND Potential
Features
o Full 13-Bit Performance Without Adjustments
MAX5270
Ordering Information
PART MAX5270ACMH MAX5270BCMH MAX5270AEMH MAX5270BEMH TEMP. RANGE 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C PINPACKAGE 44 MQFP 44 MQFP 44 MQFP 44 MQFP INL (LSB) ±2 ±4 ±2 ±4
Pin Configuration
REFCDEFREFCDEF+ DUTGNDEF
36
OUTC
OUTD
OUTB
Industrial Process Controls Arbitrary Function Generators Avionics Equipment Minimum Component Count Analog Systems Digital Offset/Gain Adjustment SONET Applications Automatic Test Equipment (ATE)
44
43
42
41
40
39
38
VDD
37
35
34
OUTF OUTG
OUTE
Applications
TOP VIEW
DUTGNDCD
DUTGNDAB OUTA REFABREFAB+ VDD VSS LD A2 A1 A0 CS
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
33 32 31 30 29 28 27 26 25 24 23
DUTGNDGH OUTH REFGHREFGH+ VSS CLR D12 D11 D10 D9 D8
MAX5270
Functional Diagram appears at end of data sheet.
WR VCC GND D0 D1 D2 D3 D4 D5 D6 D7
MQFP-44
________________________________________________________________ Maxim Integrated Products
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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.
Octal, 13-Bit Voltage-Output DAC with Parallel Interface MAX5270
ABSOLUTE MAXIMUM RATINGS
VDD to GND ........-0.3V to +13.2V VSS to GND ........ -13.2V to +0.3V VCC to GND ... -0.3V to +6V A_, D_, WR, CS, LD, CLR to GND....+0.3V to (VCC + 0.3V) REF_ _ _ _+, DUTGND_ _ .......(VSS - 0.3V) to (VDD + 0.3V) OUT_ ........VDD to VSS Maximum Current into REF_ _ _ _ _, DUTGND_ _ ..±10mA Maximum Current into Any Signal Pin ..... ±50mA OUT_ Short-Circuit Duration to VDD, VSS, and GND ..... 1s Continuous Power Dissipation (TA = +70°C) 44-Pin MQFP (derate 11.1mW/°C above +70°C)........ 870mW Operating Temperature Ranges MAX5270_CMH ....... 0°C to +70°C MAX5270_EMH ..... -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
( V DD = +12V, V SS = -12V, V CC = +5V, V GND = V DUTGND_ _ = 0, V REF_ _ _ _+ = +4.096V, V REF_ _ _ _- = 0, R L = 10M, CL = 50pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER Resolution Relative Accuracy Differential Nonlinearity Zero-Scale Error Full-Scale Error Gain Error Gain Temperature Coefficient DC Crosstalk REFERENCE INPUTS Input Resistance Input Current REF_ _ _ _+ Input REF_ _ _ _- Input (REF_ _ _ _+) - (REF_ _ _ _-) Range ANALOG OUTPUTS Maximum Output Voltage Minimum Output Voltage Resistive Load to GND Capacitive Load to GND DC Output Impedance (Note 2) (Note 1) 5 10,000 0.5 9 VDD - 2 0 V V k pF REF_ _ _ _- tied to AGND externally 2 2 0 4.5 1 ±1 ±10 4.5 M µA V V V (Note 1) (Note 1) SYMBOL N INL DNL ZSE FSE MAX5270A MAX5270B Guaranteed monotonic ±2 ±4 ±2 0.15 14 CONDITIONS MIN 13 ±2 ±4 ±1 ±4 ±8 ±5 20 75 TYP MAX UNITS Bits LSB LSB LSB LSB LSB ppm FSR/°C µV
STATIC PERFORMANCE (ANALOG SECTION)
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Octal, 13-Bit Voltage-Output DAC with Parallel Interface
ELECTRICAL CHARACTERISTICS (continued)
( V DD = +12V, V SS = -12V, V CC = +5V, V GND = V DUTGND_ _ = 0, V REF_ _ _ _+ = +4.096V, V REF_ _ _ _- = 0, R L = 10M, CL = 50pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER Input Impedance per DAC Input Current per DAC Input Range DIGITAL INPUTS Input Voltage High Input Voltage Low Input Capacitance Input Current POWER SUPPLIES VDD Analog Power Supply Range VSS Analog Power Supply Range Digital Power Supply Positive Supply Current Negative Supply Current Digital Supply Current PSRR, VOUT / VDD PSRR, VOUT / VSS VDD VSS VCC IDD ISS ICC (Note 3) (Note 4) (Note 3) (Note 4) VDD = 14V ±5% VSS = -9V ±5% 94 98 11.4 -11.4 4.75 5 10 10 12.6 -12.6 5.25 13 13 0.5 5 V V V mA mA mA dB dB VIH VIL CIN IIN (Note 1) VIN = 0 or VCC -1 2.4 0.8 10 1 V V pF µA (Note 1) SYMBOL CONDITIONS MIN 40 -165 -2 TYP 84 100 2 MAX UNITS k µA V DUTGND_ _ CHARACTERISTICS
MAX5270
INTERFACE TIMING CHARACTERISTICS
(VDD = +12V, VSS = -12V, VCC = +5V, VGND = VDUTGND_ _ = 0, VREF_ _ _ _+ = +4.096V, VREF_ _ _ _- = 0, RL =10M, CL = 50pF, Figure 2, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER CS Pulse Width Low WR Pulse Width Low LD Pulse Width Low CS Low to WR Low CS High to WR High Data Valid to WR Setup Data Valid to WR Hold Address Valid to WR Setup Address Valid to WR Hold SYMBOL t1 t2 t3 t4 t5 t6 t7 t8 t9 CONDITIONS MIN 50 50 50 0 0 50 0 15 0 TYP MAX UNITS ns ns ns ns ns ns ns ns ns
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