- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄10313 > AD7829BRUZ-1REEL7 (Analog Devices Inc)IC ADC 8BIT 8CH 2MSPS 28-TSSOP PDF資料下載
參數(shù)資料
| 型號： | AD7829BRUZ-1REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 4/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 8BIT 8CH 2MSPS 28-TSSOP |
| 標準包裝： | 1,000 |
| 位數(shù)： | 8 |
| 采樣率（每秒）： | 2M |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉換器數(shù)目： | 1 |
| 功率耗散（最大）： | 36mW |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-TSSOP（0.173"，4.40mm 寬） |
| 供應商設備封裝： | 28-TSSOP |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類型： | 8 個單端，單極 |
AD7829-1
Rev. 0 | Page 12 of 20
VREF
VMID
VIN
R3
R4
R2
R1
V
0V
VIN
0V
2.5V
AD7829-1
2.5V
06
17
9-
0
12
5V
4V
3V
2V
1V
VDD = 5V
INPUT SIGNAL RANGE
FOR VARIOUS VMID
VMID = N/C (1.25V)
VMID = 2.5V
VMID = 3.75V
3V
2V
1V
VDD = 3V
INPUT SIGNAL RANGE
FOR VARIOUS VMID
VMID = N/C (1V)
VMID = 1.5V
VMID = 2V
0
61
79
-01
0
Figure 11. Accommodating Bipolar Signals Using External VMID
R2
VREF
VMID
VIN
EXTERNAL
2.5V
R3
R4
R1
V
0V
VIN
0V
VMID
06
17
9
-01
3
AD7829-1
Figure 9. Analog Input Span Variation with VMID
VMID can be used to remove offsets in a system by applying the
offset to the VMID pin, as shown in
Figure 12. Accommodating Bipolar Signals Using Internal VMID
Figure 10; or it can be used
to accommodate bipolar signals by applying VMID to a level-shifting
NOTE: Although there is a VREF pin from which a voltage
reference of 2.5 V can be sourced, or to which an external
reference can be applied, this does not provide an option of
varying the value of the voltage reference. As stated in the
specifications for the AD7829-1, the input voltage range at this
pin is 2.5 V ± 2%.
driven by an external source, the source can be directly tied to
the level-shifting circuitry (see Figure 11); however, if the internal
VMID, that is, the default value, is being used as an output, it must
be buffered before applying it to the level-shifting circuitry, because
the VMID pin has an impedance of approximately 6 kΩ (see
Analog Input Structure
Figure 13 shows an equivalent circuit of the analog input
structure of the AD7829-1. The two diodes, D1 and D2, provide
ESD protection for the analog inputs. Care must be taken to
ensure that the analog input signal never exceeds the supply
rails by more than 200 mV. This causes these diodes to become
forward biased and start conducting current into the substrate.
20 mA is the maximum current these diodes can conduct
without causing irreversible damage to the part. However, it is
worth noting that a small amount of current (1 mA) conducted
into the substrate due to an overvoltage on an unselected channel
can cause inaccurate conversions on a selected channel.
VIN
VMID
AD7829-1
VMID
VIN
VMID
0
61
79
-0
11
Figure 10. Removing Offsets Using VMID
相關PDF資料 |
PDF描述 |
|---|---|
| MS27497E16F35P | CONN RCPT 55POS WALL MNT W/PINS |
| MS27474T12F98PB | CONN RCPT 10POS JAM NUT W/PINS |
| VE-24T-MX-S | CONVERTER MOD DC/DC 6.5V 75W |
| MS27466P13A35SA | CONN RCPT 22POS WALL MNT W/SCKT |
| VE-24R-MX-S | CONVERTER MOD DC/DC 7.5V 75W |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AD7829BRUZ-REEL | 功能描述:IC ADC 8BIT 8CHAN 2MSPS 28TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:- 標準包裝:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個單端，單極 |
| AD7829BRUZ-REEL1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:3 V/5 V, 2 MSPS, 8-Bit, 1-/4-/8-Channel Sampling ADCs |
| AD7829BRUZ-REEL7 | 功能描述:IC ADC 8BIT 8CHAN 2MSPS 28TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:- 標準包裝:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個單端，單極 |
| AD7829BRUZ-REEL71 | 制造商:AD 制造商全稱:Analog Devices 功能描述:3 V/5 V, 2 MSPS, 8-Bit, 1-/4-/8-Channel Sampling ADCs |
| AD7829BRW-1 | 功能描述:IC ADC 8BIT 8CH 2MSPS 28-SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:- 標準包裝:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個單端，單極 |
發(fā)布緊急采購，3分鐘左右您將得到回復。