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| 型號： | AD7835APZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 27/28頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC 14BIT QUAD PARALL 44PLCC |
| 產(chǎn)品培訓(xùn)模塊： | Data Converter Fundamentals DAC Architectures |
| 標準包裝： | 1 |
| 設(shè)置時間： | 10µs |
| 位數(shù)： | 14 |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 4 |
| 電壓電源： | 模擬和數(shù)字，雙 ± |
| 功率耗散（最大）： | 465mW |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 44-LCC（J 形引線） |
| 供應(yīng)商設(shè)備封裝： | 44-PLCC（16.59x16.59） |
| 包裝： | 管件 |
| 輸出數(shù)目和類型： | 4 電壓，單極；4 電壓，雙極 |
| 采樣率（每秒）： | 100k |
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AD7834/AD7835
Rev. D | Page 8 of 28
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
14
13
12
11
17
16
15
20
19
18
10
9
8
1
2
3
4
7
6
5
28
27
26
25
24
23
22
21
TOP VIEW
(Not to Scale)
NC = NO CONNECT
VSS
NC
AGND
DSG
VREF(–)
VREF(+)
VOUT1
VDD
NC
VOUT2
VOUT4
DGND
VCC
SCLK
LDAC
CLR
VOUT3
DIN
PA0
PA1
PA2
FSYNC
PA3
PA4
PAEN
AD7834
01006-006
Figure 6. AD7834 PDIP and SOIC Pin Configuration
Table 7. AD7834 Pin Function Descriptions
Pin No.
Pin Mnemonic
Description
1
VSS
Negative Analog Power Supply: 15 V ± 5% or 12 V ± 5%.
2
DSG
Device Sense Ground Input. Used in conjunction with the CLR input for power-on protection of
the DACs. When CLR is low, the DAC outputs are forced to the potential on the DSG pin.
3
VREF()
Negative Reference Input. The negative reference voltage is referred to AGND.
4
VREF(+)
Positive Reference Input. The positive reference voltage is referred to AGND.
5, 24, 25, 26, 27
NC
No Connect.
VOUT1 to VOUT4
22, 6, 21, 7
DAC Outputs.
8
DGND
Digital Ground.
9
VCC
Logic Power Supply: 5 V ± 5%.
10
SCLK
Clock Input. Used for writing data to the device; data is clocked into the input register on the
falling edge of SCLK.
11
DIN
Serial Data Input.
12,13,14,15,16
PA0 to PA4
Package Address Inputs. These inputs are hardwired high (VCC) or low (DGND) to assign dedicated
package addresses in a multipackage environment.
17
PAEN
Package Address Enable Input. When low, this input allows normal operation of the device. When
high, the device ignores the package address, but not the channel address, in the serial data
stream and loads the serial data into the input registers. This feature is useful in a multipackage
application where it can be used to load the same data into the same channel in each package.
18
FSYNC
Frame Sync Input. Active low logic input used, in conjunction with DIN and SCLK, to write data to
the device with serial data expected after the falling edge of this signal. The contents of the 24-bit
serial-to-parallel input register are transferred on the rising edge of this signal.
19
LDAC
Load DAC Input (Level Sensitive). This input signal, in conjunction with the FSYNC input signal,
determines how the analog outputs are updated. If LDAC is maintained high while new data is
being loaded into the device’s input registers, no change occurs on the analog outputs.
Subsequently, when LDAC is brought low, the contents of all four input registers are transferred
into their respective DAC latches, updating all of the analog outputs simultaneously.
20
CLR
Asynchronous Clear Input (Level Sensitive, Active Low). When this input is brought low, all analog
outputs are switched to the externally set potential on the DSG pin. When CLR is brought high, the
signal outputs remain at the DSG potential until LDAC is brought low. When LDAC is brought low,
the analog outputs are switched back to reflect their individual DAC output levels. As long as CLR
remains low, the LDAC signals are ignored, and the signal outputs remain switched to the
potential on the DSG pin.
23
VDD
Positive Analog Power Supply: 15 V ± 5% or 12 V ± 5%.
28
AGND
Analog Ground.
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| AD7835APZ-REEL | 功能描述:IC DAC 14BIT QUAD PARALL 44PLCC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標準包裝:2,400 系列:- 設(shè)置時間:- 位數(shù):18 數(shù)據(jù)接口:串行 轉(zhuǎn)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(yīng)商設(shè)備封裝:36-TFBGA 包裝:帶卷 (TR) 輸出數(shù)目和類型:* 采樣率（每秒）:* |
| AD7835AS | 制造商:Analog Devices 功能描述:DAC 4-CH R-2R 14-bit 44-Pin MQFP 制造商:Rochester Electronics LLC 功能描述:QUAD 14-BIT PARALLEL DAC I.C. - Bulk 制造商:Analog Devices 功能描述:IC 14-BIT DAC |
| AD7835AS-REEL | 制造商:Analog Devices 功能描述:DAC 4-CH R-2R 14-bit 44-Pin MQFP T/R |
| AD7835ASZ | 功能描述:IC DAC 14BIT QUAD PARA 44-MQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 設(shè)置時間:4µs 位數(shù):12 數(shù)據(jù)接口:串行 轉(zhuǎn)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(yīng)商設(shè)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) |
| AD7835ASZ | 制造商:Analog Devices 功能描述:IC 14-BIT DAC |
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