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MAX5304CUAMAXIMN/a217avai10-Bit Voltage-Output DAC in 8-Pin レMAX


MAX5304CUA ,10-Bit Voltage-Output DAC in 8-Pin レMAXApplications_________________Ordering InformationDigital Offset and Gain AdjustmentPART TEMP. RANGE ..
MAX5304CUA+T ,10-Bit Voltage-Output DAC in 8-Pin µMAXApplications_________________Ordering InformationDigital Offset and Gain AdjustmentPART TEMP. RANGE ..
MAX5306EUE ,Low-Power, Low-Glitch, Octal 12-Bit Voltage-Output DACs with Serial InterfaceApplicationsPin ConfigurationGain and Offset AdjustmentPower Amplifier ControlTOP VIEWProcess Contr ..
MAX5306EUE+ ,Low-Power, Low-Glitch, Octal 12-Bit Voltage-Output DACs with Serial InterfaceFeaturesThe MAX5306/MAX5307 are 12-bit, eight channel, low- Eight Highly Integrated 12-Bit DACs in ..
MAX5307EUE ,PLASTIC ENCAPSULATED DEVICES MAX5307EUE Rev. A RELIABILITY REPORT FOR MAX5307EUE PLASTIC ENCA ..
MAX5307EUE+ ,Low-Power, Low-Glitch, Octal 12-Bit Voltage-Output DACs with Serial InterfaceMAX5306/MAX530719-2132; Rev 0; 8/01Low-Power, Low-Glitch, Octal 12-Bit Voltage-Output DACs with Ser ..
MAX9750CETI+T ,2.6W Stereo Audio Power Amplifiers and DirectDrive® Headphone AmplifiersFeaturesThe MAX9750/MAX9751/MAX9755 combine a stereo,♦ No DC-Blocking Capacitors Required—Provides® ..
MAX9752BETI+T ,2.2W, Low-EMI, Stereo, Class D Power Amplifiers with DirectDrive Headphone AmplifiersBlock DiagramsMAX9752 MAX9753 MAX9754SCLASS CLASS CLASSD D DSAMP AMP AMPVOLINPUT HPS HPS HPSMUX SEL ..
MAX9755ETI ,2.6W Stereo Audio Power Amplifiers and DirectDrive Headphone AmplifiersBlock DiagramsPIN- M A XIMU M PART TEMP RANGEPACKAGE G A I N ( d B ) †MAX9750AETI* -40°C to +85°C ..
MAX9755ETI+ ,2.6W Stereo Audio Power Amplifiers and DirectDrive® Headphone AmplifiersELECTRICAL CHARACTERISTICS(V = PV = CPV = HPV = 5V, V = V = V = 0V, SHDN = V , C = 1µF, C1 = C2 = 1 ..
MAX9755ETI+ ,2.6W Stereo Audio Power Amplifiers and DirectDrive® Headphone Amplifiersfeatures an analog volume control, and a♦ High 90dB PSRRBEEP input. The MAX9751
MAX9755ETI+T ,2.6W Stereo Audio Power Amplifiers and DirectDrive® Headphone Amplifiersfeatures a 2:1 input multiplexer,allowing multiple audio sources to be selected. All devices♦ Low-P ..


MAX5304CUA
10-Bit Voltage-Output DAC in 8-Pin レMAX
General Description
The MAX5304 combines a low-power, voltage-output,
10-bit digital-to-analog converter (DAC) and a precision
output amplifier in an 8-pin µMAX package. It operates
from a single +5V supply, drawing less than 280µA of
supply current.
The output amplifier’s inverting input is available to the
user, allowing specific gain configurations, remote
sensing, and high output-current capability. This makes
the MAX5304 ideal for a wide range of applications,
including industrial process control. Other features
include a software shutdown and power-on reset.
The serial interface is SPI™/QSPI™/MICROWIRE™
compatible. The DAC has a double-buffered input,
organized as an input register followed by a DAC regis-
ter. A 16-bit serial word loads data into the input regis-
ter. The DAC register can be updated independently or
simultaneously with the input register. All logic inputs
are TTL/CMOS-logic compatible and buffered with
Schmitt triggers to allow direct interfacing to optocou-
plers.
Applications

Digital Offset and Gain Adjustment
Industrial Process Control
Microprocessor-Controlled Systems
Portable Test Instruments
Remote Industrial Control
Features
10-Bit DAC with Configurable Output Amplifier+5V Single-Supply Operation Low Supply Current
0.28mA Normal Operation
2µA Shutdown Mode
Available in 8-Pin µMAXPower-On Reset Clears DAC Output to ZeroSPI/QSPI/MICROWIRE CompatibleSchmitt-Trigger Digital Inputs for Direct
Optocoupler Interface
MAX5304
10-Bit Voltage-Output DAC
in 8-Pin µMAX

19-1562; Rev 0; 10/99
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
MAX5304
10-Bit Voltage-Output DAC
in 8-Pin µMAX
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS

(Circuit of Figure 8, VDD= +5V ±10%, VREF= +2.5V, RL= 5kΩ, CL= 100pF, TA= TMINto TMAX, unless otherwise noted. Typical values
are at TA= +25°C. Output buffer connected in unity-gain configuration.)
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.
VDD to GND...............................................................-0.3V to +6V
REF, OUT, FB to GND.................................-0.3V to (VDD+ 0.3V)
Digital Inputs to GND................................................-0.3V to +6V
Continuous Current into Any Pin.......................................±20mA
Continuous Power Dissipation (TA= +70°C)
8-Pin µMAX (derate 4.10mW/°C above+70°C)..........330mW
Operating Temperature Ranges
MAX5304CUA...................................................0°C to +70°C
MAX5304EUA................................................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
MAX5304
10-Bit Voltage-Output DAC
in 8-Pin µMAX
ELECTRICAL CHARACTERISTICS (continued)

(Circuit of Figure 8, VDD= +5V ±10%, VREF= +2.5V, RL= 5kΩ, CL= 100pF, TA= TMINto TMAX, unless otherwise noted. Typical values
are at TA= +25°C. Output buffer connected in unity-gain configuration.)
Note 1:
Guaranteed from code 3 to code 1023 in unity-gain configuration.
Note 2:
Accuracy is better than 1LSB for VOUT= 8mV to (VDD- 100mV), guaranteed by a power-supply rejection test at the end
points.
Note 3:
RL= ∞, digital inputs at GND or VDD.
MAX5304
10-Bit Voltage-Output DAC
in 8-Pin µMAX
__________________________________________Typical Operating Characteristics

(VDD= +5V, RL= 5kΩ, CL= 100pF, TA = +25°C, unless otherwise noted.)
MAX5304
10-Bit Voltage-Output DAC
in 8-Pin µMAX

2µs/div
OUT
AC-COUPLED
10mV/div
CODE = 512
DIGITAL FEEDTHROUGH (fSCLK = 100kHz)

MAX5304-11a
SCLK
2V/div
CS = 5V
____________________________Typical Operating Characteristics (continued)

(VDD= +5V, RL= 5kΩ, CL= 100pF, TA = +25°C, unless otherwise noted.)
MAX5304
10-Bit Voltage-Output DAC
in 8-Pin µMAX
_______________Detailed Description

The MAX5304 contains a voltage-output digital-to-ana-
log converter (DAC) that is easily addressed using a
simple 3-wire serial interface. Each IC includes a 16-bit
shift register, and has a double-buffered input com-
posed of an input register and a DAC register (see the
Functional Diagram). In addition to the voltage output,
the amplifier’s negative input is available to the user.
The DAC is an inverted R-2R ladder network that con-
verts a digital input (10 data bits plus 3 sub-bits) into an
equivalent analog output voltage in proportion to the
applied reference voltage. Figure 1 shows a simplified
circuit diagram of the DAC.
Reference Inputs

The reference input accepts positive DC and AC sig-
nals. The voltage at the reference input sets the full-
scale output voltage for the DAC. The reference input
voltage range is 0V to (VDD- 1.4V). The output voltage
(VOUT) is represented by a digitally programmable volt-
age source, as expressed in the following equation:
VOUT= (VREF·NB / 1024) Gain
where NB is the numeric value of the DAC’s binary
input code (0 to 1023), VREFis the reference voltage,
and Gain is the externally set voltage gain.
The impedance at the reference input is code depen-
dent, ranging from a low value of 18kΩwhen the DAC
has an input code of 1550 hex, to a high value exceed-
ing several gigohms (leakage currents) with an input
code of 0000 hex. Because the input impedance at the
reference pin is code dependent, load regulation of the
reference source is important.
In shutdown mode, the MAX5304’s REF input enters a
high-impedance state with a typical input leakage cur-
rent of 0.001µA.
The reference input capacitance is also code depen-
dent and typically ranges from 15pF (with an input
code of all 0s) to 50pF (at full scale).
The MAX873 +2.5V reference is recommended for use
with the MAX5304.
Output Amplifier

The MAX5304’s DAC output is internally buffered by a
precision amplifier with a typical slew rate of 0.6V/µs.
Access to the output amplifier’s inverting input provides
the user greater flexibility in output gain setting/signal
conditioning (see the Applications Informationsection).
With a full-scale transition at the MAX5304 output, the
typical settling time to ±1/2LSB is 10µs when loaded
with 5kΩin parallel with 100pF (loads less than 2kΩ
degrade performance).
The amplifier’s output dynamic responses and settling
performances are shown in the Typical Operating
Characteristics.
Shutdown Mode

The MAX5304 features a software-programmable shut-
down that reduces supply current to a typical value of
4µA. Writing 111X XXXX XXXX XXXX as the input-con-
trol word puts the device in shutdown mode (Table 1).
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