參數資料
型號： AD7794BRUZ-REEL
廠商： Analog Devices Inc
文件頁數： 6/37頁
文件大?。?/td> 0K
描述： IC ADC 24BIT 6CH LP 24-TSSOP
產品培訓模塊： ADC Applications
ADC Architectures
ADC DC/AC Performance
標準包裝： 2,500
位數： 24
采樣率（每秒）： 470
數據接口： DSP，MICROWIRE?，QSPI?，串行，SPI?
轉換器數目： 1
功率耗散（最大）： 2.5mW
電壓電源： 模擬和數字
工作溫度： -40°C ~ 105°C
安裝類型： 表面貼裝
封裝/外殼： 24-TSSOP（0.173"，4.40mm 寬）
供應商設備封裝： 24-TSSOP
包裝： 帶卷 (TR)
輸入數目和類型： 6 個差分，單極；6 個差分，雙極
配用： EVAL-AD7794EBZ-ND - BOARD EVALUATION FOR AD7794
AD7794/AD7795
Rev. D | Page 13 of 36
RMS NOISE AND RESOLUTION SPECIFICATIONS
The AD7794/AD7795 can be operated with chop enabled or
chop disabled, allowing the ADC to be optimized for switching
time or drift performance. With chop enabled, the settling time
is two times the conversion time. However, the offset is
continuously removed by the ADC leading to low offset and low
offset drift. With chop disabled, the allowable update rates are
the same as in chop enable mode. However, the settling time
now equals the conversion time. With chop disabled, the offset
is not removed by the ADC, so periodic offset calibrations can
be required to remove offset due to drift.
CHOP ENABLED
External Reference
Table 5 shows the AD7794/AD7795 rms noise for some update
rates and gain settings. The numbers given are for the bipolar
input range with an external 2.5 V reference. These numbers are
typical and are generated with a differential input voltage of 0 V.
Table 6 and Table 7 show the effective resolution, while the
output peak-to-peak (p-p) resolution is listed in brackets. It is
important to note that the effective resolution is calculated
using the rms noise, while the p-p resolution is calculated based
on peak-to-peak noise. The p-p resolution represents the
resolution for which there is no code flicker. These numbers are
typical and are rounded to the nearest LSB.
Table 5. RMS Noise (μV) vs. Gain and Output Update Rate Using an External 2.5 V Reference with Chop Enabled
Update Rate (Hz)
Gain of 1
Gain of 2
Gain of 4
Gain of 8
Gain of 16
Gain of 32
Gain of 64
Gain of 128
4.17
0.64
0.6
0.29
0.22
0.1
0.065
0.039
0.041
8.33
1.04
0.96
0.38
0.26
0.13
0.078
0.057
0.055
16.7
1.55
1.45
0.54
0.36
0.18
0.11
0.087
0.086
33.2
2.3
2.13
0.74
0.5
0.23
0.17
0.124
0.118
62
2.95
2.85
0.92
0.58
0.29
0.2
0.153
0.144
123
4.89
4.74
1.49
1
0.48
0.32
0.265
0.283
242
11.76
9.5
4.02
1.96
0.88
0.45
0.379
0.397
470
11.33
9.44
3.07
1.79
0.99
0.63
0.568
0.593
Table 6.
Effective Resolution (Bits) vs. Gain and Output Update Rate for the AD7794 Using an External 2.5 V Reference with Chop Enabled
Update Rate (Hz)
Gain of 1
Gain of 2
Gain of 4
Gain of 8
Gain of 16
Gain of 32
Gain of 64
Gain of 128
4.17
23 (20.5)
22 (19.5)
21.5 (19)
21 (18.5)
20 (17.5)
8.33
22 (19.5)
21.5 (19)
21 (18.5)
20.5 (18)
19.5 (17)
16.7
21.5 (19)
20.5 (18)
21 (18.5)
20.5 (18)
20 (17.5)
19 (16.5)
33.2
21 (18.5)
20 (17.5)
20.5 (18)
20 (17.5)
20.5 (18)
20 (17.5)
19 (16.5)
18.5 (16)
62
20.5 (18)
19.5 (17)
20.5 (18)
20 (17.5)
19.5 (17)
19 (16.5)
18 (15.5)
123
20 (17.5)
19 (16.5)
19.5 (17)
19 (16.5)
19.5 (17)
19 (16.5)
18 (15.5)
17 (14.5)
242
18.5 (16)
18 (15.5)
18.5 (16)
17.5 (15)
16.5 (14)
470
18.5 (16)
18 (15.5)
18.5 (16)
18 (15.5)
17 (14.5)
16 (13.5)
Table 7.
Effective Resolution (Bits) vs. Gain and Output Update Rate for the AD7795 Using an External 2.5 V Reference with Chop Enabled
Update Rate (Hz)
Gain of 1
Gain of 2
Gain of 4
Gain of 8
Gain of 16
Gain of 32
Gain of 64
Gain of 128
4.17
16 (16)
8.33
16 (16)
16.7
16 (16)
33.2
16 (16)
62
16 (16)
16 (15.5)
123
16 (16)
16 (15.5)
16 (14.5)
242
16 (16)
16 (15.5)
16 (16)
16 (15)
16 (14)
470
16 (16)
16 (15.5)
16 (16)
16 (15.5)
16 (14.5)
16 (13.5)
相關PDF資料
PDF描述
VI-2V2-MX-S CONVERTER MOD DC/DC 15V 75W
MS3100F20-22P CONN RCPT 6POS WALL MNT W/PINS
MS27474E16B26P CONN RCPT 26POS JAM NUT W/PINS
D38999/20FB99PN CONN RCPT 7POS WALL MNT W/PINS
LTC1598IG IC A/D CONV 12BIT SRL 8CH 24SSOP
相關代理商/技術參數
參數描述
AD7794BRUZ-REEL1 制造商:AD 制造商全稱:Analog Devices 功能描述:6-Channel, Low Noise, Low Power, 24-/16-Bit ?￡-?? ADC with On-Chip In-Amp and Reference
AD7794CRU 制造商:Analog Devices 功能描述:AFE 6CH 24/16BIT 470HZ 24T 制造商:Analog Devices 功能描述:AFE, 6CH, 24/16BIT, 470HZ, 24TSSOP; IC Function:Analogue Front End Device IC; Supply Voltage Min:2.7V; Supply Voltage Max:5.25V; Operating Temperature Min:-40C; Operating Temperature Max:125C; Digital IC Case Style:TSSOP; No. of ;RoHS Compliant: Yes
AD7794CRUZ 功能描述:IC ADC 24BIT 6CH LP 24-TSSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1 系列:microPOWER™ 位數:8 采樣率（每秒）:1M 數據接口:串行，SPI? 轉換器數目:1 功率耗散（最大）:- 電壓電源:模擬和數字 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應商設備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數目和類型:8 個單端，單極 產品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6
AD7794CRUZ1 制造商:AD 制造商全稱:Analog Devices 功能描述:6-Channel, Low Noise, Low Power, 24-/16-Bit ?￡-?? ADC with On-Chip In-Amp and Reference
AD7794CRUZ-REEL 功能描述:IC ADC 24BIT 6CH LP 24-TSSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:16 采樣率（每秒）:45k 數據接口:串行 轉換器數目:2 功率耗散（最大）:315mW 電壓電源:模擬和數字 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。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*