參數(shù)資料
型號(hào)： AD5390BCP-3-REEL
廠商： ANALOG DEVICES INC
元件分類： DAC
英文描述： 8-/16-Channel, 3 V/5 V, Serial Input, Single- Supply, 12-/14-Bit Voltage Output DACs
中文描述： SERIAL INPUT LOADING, 8 us SETTLING TIME, 14-BIT DAC, QCC64
封裝： 9 X 9 MM, MO-220VMMD-4, LFCSP-64
文件頁(yè)數(shù)： 39/44頁(yè)
文件大小： 1319K
代理商： AD5390BCP-3-REEL
AD5390/AD5391/AD5392
Power Amplifier Control
Multistage power amplifier designs require a large number of
setpoints in the operation and control of the output stage. The
AD539x are ideal for these applications because of their small
size (LFCSP package) and the integration of 8 and 16 channels,
offering 12- and 14-bit resolution. Figure 44 shows a typical
transmitter architecture, in which the AD539x DACs can be
used in the following control circuits: I
BIAS
control, average
power control (APC), peak power control (PPC), transmit gain
control (TGC), and audio level control (ALC). DACs are also
required for variable voltage attenuators, phase shifter control,
and dc-setpoint control in the overall amplifier design.
Rev. A | Page 39 of 44
0
POWER
AMPLIFIER
EXCITER
AUDIO
SOURCE
50
LOAD
PHASE
SHIFT
I
BIAS
TGC
APC
PPC
ALC
Figure 44. Multistage Power Amplifier Control
Process Control Applications
The AD539x-5 family is ideal for process control applications
because it offers a combination of 8 and 16 channels and 12-bit
and 14-bit resolution. These applications generally require
output voltage ranges of 0 V to 5 V ±5 V, 0 V to 10 V ±10 V, and
current sink and source functions. The AD539x-5 products
operate from a single 5 V supply and, therefore, require external
signal conditioning to achieve the output ranges described here.
Figure 45 shows configurations to achieve these output ranges.
The key advantages of using AD539x products in these
applications are small package size, pin compatibility with the
ability to upgrade from 12 to 14 bits, integrated on-chip 2.5 V
reference with 10 ppm/°C maximum temperature coefficient,
and excellent accuracy specifications. The AD539x family
contains an offset and gain register for each channel, so users
can perform system-level calibration on a per-channel basis.
0
VOUT 3
2.5V
REFERENCE
±10V
RANGE
±5V
RANGE
4R
AD539x-5
VOUT 0
VOUT 1
VOUT 2
VOUT 4
0.1
μ
F
R
R
R
R
4R
2R
2R
I SINK
R1
R
R
1/4 OP747/
1/4 OP4177
1/4 OP747/
1/4 OP4177
1/4 OP747/
1/4 OP4177
1/4 OP747/
1/4 OP4177
0V–10V
RANGE
0V–5V
RANGE
Figure 45. Output Configurations for Process
Control Applications
Optical Transceivers
The AD539x-3 family of products are ideally suited to optical
transceiver applications. In 300 pin MSA applications, for
example, digital-to-analog converters are required to control the
laser power, APD bias, modulator amplitude and diagnostic
information is required as analog outputs from the module. The
AD539x offering a combination of 8/16 channels, resolution of
12/14-bits in a 64 lead LFCSP package, operating from a supply
voltage of 2.7 V to 5.5 V supply with internal reference and
featuring I
2
C-compatible and SPI interface, make it an ideal
component for use in these applications. Figure 46 shows a
typical configuration in an optical transceiver application.
10AND
LASER
PIN/APD
IRXP
IMODMON
IMPD
IBIASMON
AIN
SDA
VLSRBIAS
VLSRPWRMON
VXLOPMON
I
BIAS
IMOD
SCL
REFOUT/REFIN
AD539x-3
AV
DD
DV
DD
AV
DD
REFIN
AD7994
ADC
TIAs
I
2
C
BUS
3V
CONTROLLER
SDA
SCL
0
Figure 46. Optical Transceiver using the AD539x-3
相關(guān)PDF資料
PDF描述
AD5391BCP-3-REEL 8-/16-Channel, 3 V/5 V, Serial Input, Single- Supply, 12-/14-Bit Voltage Output DACs
AD5391BST-3 8-/16-Channel, 3 V/5 V, Serial Input, Single- Supply, 12-/14-Bit Voltage Output DACs
AD5391BST-5 8-/16-Channel, 3 V/5 V, Serial Input, Single- Supply, 12-/14-Bit Voltage Output DACs
AD5391BST-5-REEL 8-/16-Channel, 3 V/5 V, Serial Input, Single- Supply, 12-/14-Bit Voltage Output DACs
AD5392 8-/16-Channel, 3 V/5 V, Serial Input, Single- Supply, 12-/14-Bit Voltage Output DACs
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD5390BCP-3-REEL7 制造商:Analog Devices 功能描述:DAC 16-CH Resistor-String 14-bit 64-Pin LFCSP EP T/R
AD5390BCP-5 制造商:Analog Devices 功能描述:DAC 16-CH Resistor-String 14-bit 64-Pin LFCSP EP 制造商:Analog Devices 功能描述:14BIT DAC 16CH 5V 5390 LFCSP-64
AD5390BCP-5-REEL 制造商:Analog Devices 功能描述:DAC 16-CH Resistor-String 14-bit 64-Pin LFCSP EP T/R
AD5390BCP-5-REEL7 制造商:Analog Devices 功能描述:DAC 16-CH Resistor-String 14-bit 64-Pin LFCSP EP T/R
AD5390BCP-U1 制造商:Analog Devices 功能描述:DAC HEXADECIMAL RES-STRING 14BIT 64LFCSP - Bulk
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