전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

AD5321BRT 데이터시트(PDF) 9 Page - Analog Devices

부품명 AD5321BRT
상세설명  2.5 V to 5.5 V, 120 uA, 2-Wire Interface, Voltage Output 8-/10-/12-Bit DACs
Download  15 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  AD [Analog Devices]
홈페이지  http://www.analog.com
Logo AD - Analog Devices

AD5321BRT 데이터시트(HTML) 9 Page - Analog Devices

Back Button AD5321BRT Datasheet HTML 5Page - Analog Devices AD5321BRT Datasheet HTML 6Page - Analog Devices AD5321BRT Datasheet HTML 7Page - Analog Devices AD5321BRT Datasheet HTML 8Page - Analog Devices AD5321BRT Datasheet HTML 9Page - Analog Devices AD5321BRT Datasheet HTML 10Page - Analog Devices AD5321BRT Datasheet HTML 11Page - Analog Devices AD5321BRT Datasheet HTML 12Page - Analog Devices AD5321BRT Datasheet HTML 13Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 15 page
background image
REV. 0
AD5301/AD5311/AD5321
–9–
1ns/DIV
2.440
2.455
2.445
2.450
Figure 20. Digital Feedthrough
GENERAL DESCRIPTION
The AD5301/AD5311/AD5321 are single resistor-string DACs
fabricated on a CMOS process with resolutions of 8, 10 and 12
bits respectively. Data is written via a 2-wire serial interface.
They operate from single supplies of +2.5 V to +5.5 V and the
output buffer amplifiers provide rail-to-rail output swing with a
slew rate of 0.7 V/
µs. The power-supply (V
DD) acts as the refer-
ence to the DAC. The devices have three programmable power-
down modes, in which the DAC may be turned off completely
with a high-impedance output, or the output may be pulled low
by an on-chip resistor. See Power-Down section.
DIGITAL-TO-ANALOG SECTION
The architecture of the DAC channel consists of a resistor-
string DAC followed by an output buffer amplifier. The voltage
at the VDD pin provides the reference voltage for the DAC.
Figure 21 shows a block diagram of the DAC architecture.
Since the input coding to the DAC is straight binary, the ideal
output voltage is given by:
V
VD
OUT
DD
N
=
×
2
where:
N = DAC resolution
D = decimal equivalent of the binary code which is loaded to the
DAC register:
0–255 for AD5301 (8 Bits)
0–1023 for AD5311 (10 Bits)
0–4095 for AD5321 (12 Bits)
RESISTOR
STRING
OUTPUT BUFFER
AMPLIFIER
DAC
REGISTER
REF(+)
VOUT
VDD
REF(–)
Figure 21. DAC Channel Architecture
RESISTOR STRING
The resistor string section is shown in Figure 22. It is simply a
string of resistors, each of value R. The digital code loaded to
the DAC register determines at what node on the string the
voltage is tapped off to be fed into the output amplifier. The
voltage is tapped off by closing one of the switches connecting
the string to the amplifier. Because it is a string of resistors, it is
guaranteed monotonic over all codes.
R
R
R
R
R
TO OUTPUT
AMPLIFIER
Figure 22. Resistor String
OUTPUT AMPLIFIER
The output buffer amplifier is capable of generating output
voltages to within 1 mV from either rail, which gives an output
range of 0.001 V to VDD – 0.001 V. It is capable of driving a
load of 2 k
Ω to GND and V
DD, in parallel with 500 pF to GND.
The source and sink capabilities of the output amplifier can be
seen in Figure 11.
The slew rate is 0.7 V/
µs with a half-scale settling time to
±0.5 LSB (at 8 bits) of 6 µs with the output unloaded.
POWER-ON RESET
The AD5301/AD5311/AD5321 are provided with a power-on
reset function, ensuring that they power up in a defined state.
The DAC register is filled with zeros and remains so until a
valid write sequence is made to the device. This is particularly
useful in applications where it is important to know the state of
the DAC output while the device is powering up.


유사한 부품 번호 - AD5321BRT

제조업체부품명데이터시트상세설명
logo
Analog Devices
AD5321BRT-500RL7 AD-AD5321BRT-500RL7 Datasheet
429Kb / 24P
   2.5 V to 5.5 V, 120 關A, 2-Wire Interface, Voltage-Output 8-/10-/12-Bit DACs
REV. B
AD5321BRT-REEL AD-AD5321BRT-REEL Datasheet
429Kb / 24P
   2.5 V to 5.5 V, 120 關A, 2-Wire Interface, Voltage-Output 8-/10-/12-Bit DACs
REV. B
AD5321BRT-REEL7 AD-AD5321BRT-REEL7 Datasheet
429Kb / 24P
   2.5 V to 5.5 V, 120 關A, 2-Wire Interface, Voltage-Output 8-/10-/12-Bit DACs
REV. B
AD5321BRTZ-500RL7 AD-AD5321BRTZ-500RL7 Datasheet
433Kb / 24P
   2-Wire Interface, Voltage-Output 8-/10-/12-Bit DACs
AD5321BRTZ-500RL71 AD-AD5321BRTZ-500RL71 Datasheet
429Kb / 24P
   2.5 V to 5.5 V, 120 關A, 2-Wire Interface, Voltage-Output 8-/10-/12-Bit DACs
REV. B
More results

유사한 설명 - AD5321BRT

제조업체부품명데이터시트상세설명
logo
Analog Devices
AD5337 AD-AD5337 Datasheet
654Kb / 24P
   2.5 V to 5.5 V, 250 UA, 2-Wire Interface Dual-Voltage Output, 8-/10-/12-Bit DACs
REV. A
AD5305 AD-AD5305 Datasheet
427Kb / 20P
   2.5 V to 5.5 V, 500 uA, 2-Wire Interface Quad Voltage Output, 8-/10-/12-Bit DACs
REV. F
AD5301 AD-AD5301_15 Datasheet
429Kb / 24P
   2.5 V to 5.5 V, 120 A, 2-Wire Interface, Voltage-Output 8-/10-/12-Bit DACs
REV. B
AD5311 AD-AD5311_15 Datasheet
429Kb / 24P
   2.5 V to 5.5 V, 120 A, 2-Wire Interface, Voltage-Output 8-/10-/12-Bit DACs
REV. B
AD5321 AD-AD5321_15 Datasheet
429Kb / 24P
   2.5 V to 5.5 V, 120 A, 2-Wire Interface, Voltage-Output 8-/10-/12-Bit DACs
REV. B
AD5311BRMZ AD-AD5311BRMZ Datasheet
429Kb / 24P
   2.5 V to 5.5 V, 120 關A, 2-Wire Interface, Voltage-Output 8-/10-/12-Bit DACs
REV. B
AD5301 AD-AD5301_07 Datasheet
429Kb / 24P
   2.5 V to 5.5 V, 120 關A, 2-Wire Interface, Voltage-Output 8-/10-/12-Bit DACs
REV. B
AD5330 AD-AD5330 Datasheet
359Kb / 20P
   2.5 V to 5.5 V, 115 uA, Parallel Interface Single Voltage-Output 8-/10-/12-Bit DACs
REV. 0
AD5334 AD-AD5334 Datasheet
324Kb / 20P
   2.5 V to 5.5 V, 500 uA, Parallel Interface Quad Voltage-Output 8-/10-/12-Bit DACs
REV. 0
AD5339 AD-AD5339_15 Datasheet
593Kb / 28P
   2.5 V to 5.5 V, 250A, 2-Wire Interface, Dual Voltage Output, 8-/10-/12-Bit DACs
REV. C
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15


데이터시트 다운로드

Go To PDF Page


링크 URL




개인정보취급방침
ALLDATASHEET.CO.KR
ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크교환   |   제조사별 검색
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com