- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄375238 > AD7734BRU (ANALOG DEVICES INC) 4-Channel, +-10 V Input Range, High Throughput, 24-Bit sigma ∆ ADC PDF資料下載
參數(shù)資料
| 型號： | AD7734BRU |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | 4-Channel, +-10 V Input Range, High Throughput, 24-Bit sigma ∆ ADC |
| 中文描述： | 4-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO28 |
| 封裝： | MO-153AE, TSSOP-28 |
| 文件頁數(shù)： | 27/32頁 |
| 文件大?。?/td> | 1542K |
| 代理商： | AD7734BRU |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁當(dāng)前第27頁第28頁第29頁第30頁第31頁第32頁
AD7734
Analog Input’s Extended Voltage Range
The AD7734 output data code span corresponds to the nominal
input voltage range. The ADC is functional outside the nominal
input voltage range, but the performance might degrade. The
sigma-delta modulator was designed to fully cover a ±11.6 V
analog input voltage; outside this range, the performance might
degrade more rapidly. The adjacent channels are not affected by
up to ±16.5 V analog input voltage (Figure 8).
When the CLAMP bit in the mode register is set to 1, the
channel data register will be digitally clamped to either all 0s or
all 1s when the analog input voltage goes outside the nominal
input voltage range.
As shown in Table 16 and Table 17, when CLAMP = 0, the data
reflects the analog input voltage outside the nominal voltage
range. In this case, the SIGN and OVR bits in the channel status
register should be considered along with the data register value
to decode the actual conversion result.
Note that the OVR bit in the channel status register is generated
digitally from the conversion result and indicates the sigma-
delta modulator (nominal) overrange. The OVR bit DOES NOT
indicate exceeding the AIN pin’s absolute voltage limits
Table 16. Extended Input Voltage Range, Nominal
Voltage Range ±10 V, 16 Bits, CLAMP = 0
Input (V)
11.60039
10.00061
10.00031
10.00000
0.00031
0.00000
–0.00031
–10.00000
–10.00031
–10.00061
–11.60040
Data (hex)
147B
0001
0000
FFFF
8001
8000
7FFF
0000
FFFF
FFFE
EB85
SIGN
0
0
0
0
0
0
1
1
1
1
1
OVR
1
1
1
0
0
0
0
0
1
1
1
Table 17. Extended Input Voltage Range, Nominal
Voltage Range 0 V to +10 V, 16 Bits, CLAMP = 0
Input (V)
11.60006
10.00031
10.00015
10.00000
0.00015
0.00000
–0.00015
Data (hex)
28F5
0001
0000
FFFF
0001
0000
0000
SIGN
0
0
0
0
0
0
1
OVR
1
1
1
0
0
0
1
Chopping
With chopping enabled, the multiplexer repeatedly reverses the
ADC inputs. Every output data result is then calculated as an
average of two conversions, the first with the positive and the
second with the negative offset term included. This effectively
removes any offset error of the input buffer and sigma-delta
modulator.
However, chopping is applied only behind the input resistor
divider stage; therefore, chopping does not eliminate the offset
error and drifts caused by the resistors. Figure 24 shows the
channel signal chain with chopping enabled.
+
-
DIGITAL
INTERFACE
CHOP
CHOP
f
MCLK
/2
f
MCLK
/2
BUFFER
MULTIPLEXER
DIGITAL
FILTER
SCALING
ARITHMETIC
(CALIBRATIONS)
OUTPUT DATA
AT THE SELECTED
DATA RATE
AIN
BIASHI
BIAS
BIASLO
Σ
MODULATOR
Figure 24. Channel Signal Chain Diagram with Chopping Enabled
Rev. 0 | Page 27 of 32
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD7738 | 8-Channel, High Throughput, |
| AD7738BRU | 8-Channel, High Throughput, |
| AD7741 | Low Cost, Single & Multi-Channel,Voltage-to-Frequency Converters(低成本,單通道,電壓-頻率轉(zhuǎn)換器) |
| AD7742 | Low Cost, Single & Multi-Channel,Voltage-to-Frequency Converters(低成本,多通道,電壓-頻率轉(zhuǎn)換器) |
| AD7746ARUZ-REEL | 24-Bit Capacitance-to-Digital Converter with Temperature Sensor |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD7734BRU-REEL | 制造商:Analog Devices 功能描述:ADC Single Delta-Sigma 3.05Msps 24-bit Serial 28-Pin TSSOP T/R 制造商:Analog Devices 功能描述:ADC SGL DELTA-SIGMA 15.437KSPS 24BIT SERL 28TSSOP - Tape and Reel |
| AD7734BRU-REEL7 | 制造商:Analog Devices 功能描述:ADC Single Delta-Sigma 3.05Msps 24-bit Serial 28-Pin TSSOP T/R 制造商:Analog Devices 功能描述:ADC SGL DELTA-SIGMA 15.437KSPS 24BIT SERL 28TSSOP - Tape and Reel |
| AD7734BRUZ | 功能描述:IC ADC 24BIT 4-CH 28-TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 其它有關(guān)文件:TSA1204 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):12 采樣率（每秒）:20M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:155mW 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-TQFP 供應(yīng)商設(shè)備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數(shù)目和類型:4 個單端，單極；2 個差分，單極 產(chǎn)品目錄頁面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
| AD7734BRUZ | 制造商:Analog Devices 功能描述:IC 24BIT ADC SMD 7734 TSSOP28 |
| AD7734BRUZ-REEL | 功能描述:IC ADC 24BIT 4CH SIG-DEL 28TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。