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부품번호 | DAC8550 기능 |
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기능 | VOLTAGE OUTPUT DIGITAL-TO-ANALOG CONVERTER | ||
제조업체 | Burr-Brown Corporation | ||
로고 | |||
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www.DataSheet4U.com
BurrĆBrown Products
from Texas Instruments
DAC8550
SLAS476C – MARCH 2006 – REVISED MARCH 2006
16-BIT, ULTRA-LOW GLITCH, VOLTAGE OUTPUT
DIGITAL-TO-ANALOG CONVERTER
FEATURES
DESCRIPTION
• Relative Accuracy: 8 LSB (Max)
• Glitch Energy: 0.1 nV-s
• Settling Time: 10 µs to ±0.003% FSR
• Power Supply: +2.7 V to +5.5 V
• 16-Bit Monotonic Over Temperature
• MicroPower Operation: 200 µA at 5 V
• Rail-to-Rail Output Amplifier
• Power-On Reset to Midscale
• Power-Down Capability
• Schmitt-Triggered Digital Inputs
• SYNC Interrupt Facility
• 2's Complement Input and Reset to Midscale
• Operating Temperature Range: -40°C to 105°C
• Available Packages:
The DAC8550 is a small, low-power, voltage output,
16-bit digital-to-analog converter (DAC). It is
monotonic, provides good linearity, and minimizes
undesired code to code transient voltages. The
DAC8550 uses a versatile 3-wire serial interface that
operates at clock rates of up to 30 MHz and is
compatible with standard SPI™, QSPI™,
Microwire™, and digital signal processor (DSP)
interfaces.
The DAC8550 requires an external reference voltage
to set its output range. The DAC8550 incorporates a
power-on reset circuit that ensures that the DAC
output powers up at midscale and remain there until a
valid write takes place to the device. The DAC8550
contains a power-down feature, accessed over the
serial interface, that reduces the current consumption
of the device to 200 nA at 5 V.
– 3 mm × 5 mm MSOP-8
APPLICATIONS
• Process Control
The low-power consumption of this device in normal
operation makes it ideal for portable battery-operated
DataSheet4eUq.cuoipmment. Power consumption is 1 mW at 5 V,
reducing to 1 µW in power-down mode.
• Data Acquisition Systems
The DAC8550 is available in a MSOP-8 package.
• Closed-Loop Servo-Control
• PC Peripherals
Also see the DAC8551 binary coded counterpart of
the DAC8550.
• Portable Instrumentation
• Programmable Attenuation
FUNCTIONAL BLOCK DIAGRAM
DataShee
V DD
V FB
V REF Ref (+)
16−Bit DAC
V OUT
16
DAC Register
SYNC
SCLK
D IN
16
Shift Register
PWB Control
Resistor
Networ k
GND
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
SPI, QSPI are trademarks of Motorola.
DataSheet4UM.iccroomwire is a trademark of National Semiconductor.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006, Texas Instruments Incorporated
www.DataSheet4U.com
DAC8550
SLAS476C – MARCH 2006 – REVISED MARCH 2006
PIN CONFIGURATION
MSOP-8
(Top View)
VDD 1
VREF 2
VFB 3
VOUT 4
DAC8550
8 GND
7 DIN
6 SCLK
5 SYNC
www.ti.com
et4U.com
PIN DESCRIPTIONS
PIN NAME
DESCRIPTION
1 VDD Power supply input, 2.7 V to 5.5 V.
2 VREF Reference voltage input.
3 VFB Feedback connection for the output amplifier.
4 VOUT Analog output voltage from DAC. The output amplifier has rail-to-rail operation.
Level-triggered control input (active LOW). This is the frame synchronization signal for the input data. When SYNC goes
5
SYNC
LOW, it enables the input shift register and data is transferred in on the falling edges of the following clocks. The DAC is
updated following the 24th clock (unless SYNC is taken HIGH before this edge in which case the rising edge of SYNC acts
as an interrupt and the write sequence is ignored by the DAC8550).
6 SCLK Serial clock input. Data can be transferred at rates up to 30 MHz.
7 DIN Serial data input. Data is clocked into the 24-bit input shift register on each falling edge of the serial clock input.
8 GND Ground reference point for all circuitry on the part.
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DAC8550
www.ti.com
SLAS476C – MARCH 2006 – REVISED MARCH 2006
TYPICAL CHARACTERISTICS: VDD = 5 V (continued)
At TA = 25°C, unless otherwise noted. Unsigned binary equivalent inputs are shown in all figures.
SOURCE AND SINK CURRENT CAPABILITY
6
5 DAC Loaded With FFFFH
4
3
2
VDD = 5.5 V
VREF = VDD −10 mV
SUPPLY CURRENT
vs
DIGITAL INPUT CODE
300
VDD = VREF = 5.5 V
250
200
Reference Current Included
150
100
1
DAC Loaded With 0000H
0
035
I(SOURCE/SINK) − mA
Figure 7.
8
10
50
0
0 8192 16384 24576 32768 40960 49152 57344 65536
Digital Input Code
Figure 8.
et4U.com
POWER-SUPPLY CURRENT
vs
TEMPERATURE
250
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
300
VDD = VREF = 5.5 V
200
280 VREF = VDD
260 Reference Current Include, No Load
240
150 DataSheet4U.com220
Reference Current Included
200
100 180
160
50 140
0
−40 −10 20 50 80 110
120
100
2.7 3.1 3.4 3.8 4.1 4.5 4.8 5.2 5.5
Temperature − 5C
VDD − Supply Voltage − V
Figure 9.
Figure 10.
DataShee
POWER-DOWN CURRENT
vs
SUPPLY VOLTAGE
1
VREF = VDD
0.8
SUPPLY CURRENT
vs
LOGIC INPUT VOLTAGE
1700
TA = 25°C, SCL Input (All Other Inputs = GND)
VDD = VREF = 5.5 V
1300
0.5 900
0.3 500
0
2.7 3.1 3.4 3.8 4.1 4.5 4.8 5.2 5.5
VDD − Supply Voltage − V
Figure 11.
100
0 1 23 4 5
V(LOGIC) − V
Figure 12.
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부품번호 | 상세설명 및 기능 | 제조사 |
DAC8550 | VOLTAGE OUTPUT DIGITAL-TO-ANALOG CONVERTER | Burr-Brown Corporation |
DAC8550 | DAC8550 16-bit Ultra-Low Glitch Voltage Output Digital-To-Analog Converter (Rev. F) | Texas Instruments |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |