- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄362091 > AD5336BRU (ANALOG DEVICES INC) 2.5 V to 5.5 V, 500 uA, Parallel Interface Quad Voltage-Output 8-/10-/12-Bit DACs PDF資料下載
參數(shù)資料
| 型號： | AD5336BRU |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | DAC |
| 英文描述： | 2.5 V to 5.5 V, 500 uA, Parallel Interface Quad Voltage-Output 8-/10-/12-Bit DACs |
| 中文描述： | QUAD, PARALLEL, 8 BITS INPUT LOADING, 7 us SETTLING TIME, 10-BIT DAC, PDSO24 |
| 封裝： | TSSOP-28 |
| 文件頁數(shù)： | 18/20頁 |
| 文件大?。?/td> | 359K |
| 代理商： | AD5336BRU |
REV. 0
AD5330/AD5331/AD5340/AD5341
–18–
Programmable Current Source
Figure 38 shows the AD5330/AD5331/AD5340/AD5341 used
as the control element of a programmable current source. In this
example, the full-scale current is set to 1 mA. The output volt-
age from the DAC is applied across the current setting resistor
of 4.7 k
in series with the 470
adjustment potentiometer,
which gives an adjustment of about
±
5%. Suitable transistors to
place in the feedback loop of the amplifier include the BC107
and the 2N3904, which enable the current source to operate
from a minimum V
SOURCE
of 6 V. The operating range is deter-
mined by the operating characteristics of the transistor. Suitable
amplifiers include the AD820 and the OP295, both having rail-
to-rail operation on their outputs. The current for any digital
input code and resistor value can be calculated as follows:
I
G
V
D
×
R
mA
REF
N
=
×
×
(
)
2
Where:
G
is the gain of the buffer amplifier (1 or 2)
D
is the digital equivalent of the digital input code
N
is the DAC resolution (8, 10, or 12 bits)
R
is the sum of the resistor plus adjustment potentiometer in k
AD5330/AD5331/
AD5340/AD5341
GND
V
DD
= 5V
EXT
REF
V
OUT
AD780/REF192
WITH V
DD
= 5V
GND
V
IN
V
OUT
V
REF
V
DD
4.7k
5V
0.1 F
0.1 F
10 F
470
LOAD
V
SOURCE
AD820/
OP295
Figure 38. Programmable Current Source
Power Supply Bypassing and Grounding
In any circuit where accuracy is important, careful consideration
of the power supply and ground return layout helps to ensure
the rated performance. The printed circuit board on which the
AD5330/AD5331/AD5340/AD5341 is mounted should be
designed so that the analog and digital sections are separated,
and confined to certain areas of the board. If the device is in a
system where multiple devices require an AGND-to-DGND
connection, the connection should be made at one point only.
The star ground point should be established as closely as pos-
sible to the device. The AD5330/AD5331/AD5340/AD5341
should have ample supply bypassing of 10
μ
F in parallel with
0.1
μ
F on the supply located as close to the package as pos-
sible, ideally right up against the device. The 10
μ
F capacitors
are the tantalum bead type. The 0.1
μ
F capacitor should have
low Effective Series Resistance (ESR) and Effective Series Induc-
tance (ESI), like the common ceramic types that provide a low
impedance path to ground at high frequencies to handle tran-
sient currents due to internal logic switching.
The power supply lines of the device should use as large a trace
as possible to provide low impedance paths and reduce the effects
of glitches on the power supply line. Fast switching signals such
as clocks should be shielded with digital ground to avoid radiat-
ing noise to other parts of the board, and should never be run
near the reference inputs. Avoid crossover of digital and ana-
log signals. Traces on opposite sides of the board should run
at right angles to each other. This reduces the effects of feed-
through through the board. A microstrip technique is by far
the best, but not always possible with a double-sided board. In
this technique, the component side of the board is dedicated to
ground plane while signal traces are placed on the solder side.
相關PDF資料 |
PDF描述 |
|---|---|
| AD534SD | Internally Trimmed Precision IC Multiplier |
| AD534SE | Internally Trimmed Precision IC Multiplier |
| AD534SH | Internally Trimmed Precision IC Multiplier |
| AD534TD | Dual Channel 11-Bits, 125 MSPS ADC With Parallel CMOS/DDR LVDS Outputs 64-VQFN -40 to 85 |
| AD534TE | Dual Channel 11-Bits, 125 MSPS ADC With Parallel CMOS/DDR LVDS Outputs 64-VQFN -40 to 85 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AD5336BRU-REEL | 制造商:Analog Devices 功能描述:DAC 4-CH Resistor-String 10-bit 28-Pin TSSOP T/R 制造商:Analog Devices 功能描述:DAC 4-CH RES-STRING 10-BIT 28TSSOP - Tape and Reel |
| AD5336BRU-REEL7 | 功能描述:IC DAC 10BIT QUAD VOUT 28-TSSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉換器 系列:- 標準包裝:2,400 系列:- 設置時間:- 位數(shù):18 數(shù)據(jù)接口:串行 轉換器數(shù)目:3 電壓電源:模擬和數(shù)字 功率耗散（最大）:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:36-TFBGA 供應商設備封裝:36-TFBGA 包裝:帶卷 (TR) 輸出數(shù)目和類型:* 采樣率（每秒）:* |
| AD5336BRUZ | 功能描述:IC DAC 10BIT QUAD VOUT 28-TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉換器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 設置時間:4µs 位數(shù):12 數(shù)據(jù)接口:串行 轉換器數(shù)目:2 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應商設備封裝:8-uMAX 包裝:管件 輸出數(shù)目和類型:2 電壓，單極 采樣率（每秒）:* 產(chǎn)品目錄頁面:1398 (CN2011-ZH PDF) |
| AD5336BRUZ-REEL | 功能描述:IC DAC 10BIT QUAD VOUT 28-TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉換器 系列:- 標準包裝:2,400 系列:- 設置時間:- 位數(shù):18 數(shù)據(jù)接口:串行 轉換器數(shù)目:3 電壓電源:模擬和數(shù)字 功率耗散（最大）:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:36-TFBGA 供應商設備封裝:36-TFBGA 包裝:帶卷 (TR) 輸出數(shù)目和類型:* 采樣率（每秒）:* |
| AD5336BRUZ-REEL7 | 功能描述:IC DAC 10BIT QUAD VOUT 28-TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉換器 系列:- 產(chǎn)品培訓模塊:LTC263x 12-, 10-, and 8-Bit VOUT DAC Family 特色產(chǎn)品:LTC2636 - Octal 12-/10-/8-Bit SPI VOUT DACs with 10ppm/°C Reference 標準包裝:91 系列:- 設置時間:4µs 位數(shù):10 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉換器數(shù)目:8 電壓電源:單電源 功率耗散（最大）:2.7mW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應商設備封裝:14-DFN-EP（4x3） 包裝:管件 輸出數(shù)目和類型:8 電壓，單極 采樣率（每秒）:* |
發(fā)布緊急采購，3分鐘左右您將得到回復。