- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄9503 > AD7891BSZ-1 (Analog Devices Inc)IC DAS 12BIT 8CH 44-MQFP PDF資料下載
參數(shù)資料
| 型號： | AD7891BSZ-1 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 11/20頁 |
| 文件大小： | 0K |
| 描述： | IC DAS 12BIT 8CH 44-MQFP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | 數(shù)據(jù)采集系統(tǒng)（DAS） |
| 分辨率（位）： | 12 b |
| 采樣率（每秒）： | 500k |
| 數(shù)據(jù)接口： | 串行，并聯(lián) |
| 電壓電源： | 單電源 |
| 電源電壓： | 5V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 44-QFP |
| 供應(yīng)商設(shè)備封裝： | 44-MQFP（10x10） |
| 包裝： | 托盤 |
AD7891
–19–
REV. D
Effective Number of Bits
The formula for signal-to-(noise + distortion) ratio (see Terminology
section) is related to the resolution or number of bits of the
converter. Rewriting the formula gives a measure of performance
expressed in effective number of bits (ENOB).
ENOB
SNR
=-
()
176
602
./ .
where SNR is the signal-to-(noise + distortion) ratio.
The effective number of bits for a device can be calculated from
its measured SNR. Figure 20 shows a typical plot of effective
number of bits versus frequency for the AD7891-1 and the
AD7891-2 from dc to 200 kHz. The sampling frequency is
500 kHz. The AD7891-1 inputs were configured for
±10 V
operation. The AD7891-2 inputs were configured for 0 to 5 V
operation. The AD7891-1 plot only goes to 100 kHz as a
±10 V sine wave of sufficient quality was unavailable at higher
frequencies.
Figure 20 shows that the AD7891-1 converts an input sine wave of
100 kHz to an effective number of bits of 11 which equates to a
signal-to-(noise + distortion) level of 68.02 dBs. The AD7891-2
converts an input sine wave of 200 kHz to an effective number
of bits of 11.07, which equates to a signal-to-(noise + distortion)
level of 68.4 dBs.
FREQUENCY – kHz
12.0
11.9
11.1
40
80
120
11.5
11.4
11.3
11.2
11.7
11.6
11.8
20
060
100
140
160
180
200
11.0
EFFECTIVE
NUMBER
OF
BITS
AD7891-2 ENOB
AD7891-1 ENOB
Figure 20. Effective Number of Bits vs. Frequency
44-Lead Plastic Leaded Chip Carrier [PLCC]
(P-44A)
Dimensions shown in inches and (millimeters)
BOTTOM VIEW
(PINS UP)
6
PIN 1
IDENTIFIER
7
40
39
17
18
29
28
TOP VIEW
(PINS DOWN)
0.656 (16.66)
0.650 (16.51)
SQ
0.048 (1.22)
0.042 (1.07)
0.050
(1.27)
BSC
0.695 (17.65)
0.685 (17.40)
SQ
0.048 (1.22)
0.042 (1.07)
0.021 (0.53)
0.013 (0.33)
0.630 (16.00)
0.590 (14.99)
0.032 (0.81)
0.026 (0.66)
0.180 (4.57)
0.165 (4.19)
0.056 (1.42)
0.042 (1.07)
0.020 (0.51)
MIN
0.120 (3.05)
0.090 (2.29)
0.040 (1.01)
0.025 (0.64)
R
COMPLIANT TO JEDEC STANDARDS MO-047AC
CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN
OUTLINE DIMENSIONS
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| VI-B4J-MY-S | CONVERTER MOD DC/DC 36V 50W |
| AD7891BSZ-2 | IC DAS 12BIT 8CH 44-MQFP |
| VI-B44-MY-S | CONVERTER MOD DC/DC 48V 50W |
| LTC1293CCN#PBF | IC DATA ACQ SYSTEM 12BIT 16-DIP |
| VI-24T-MY-S | CONVERTER MOD DC/DC 6.5V 50W |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD7891BSZ-2 | 功能描述:IC DAS 12BIT 8CH 44-MQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| AD7891YP-1 | 制造商:Analog Devices 功能描述:ADC Single 454.5ksps 12-bit Parallel/Serial 44-Pin PLCC 制造商:Rochester Electronics LLC 功能描述:8 CHANNEL, 12-BIT ADC I.C. - Bulk |
| AD7891YP-1REEL | 制造商:Analog Devices 功能描述:ADC Single 454.5ksps 12-bit Parallel/Serial 44-Pin PLCC T/R 制造商:Analog Devices 功能描述:ADC SGL 454.5KSPS 12-BIT PARALLEL/SERL 44PLCC - Tape and Reel |
| AD7891YPZ-1 | 功能描述:IC DAS 12BIT 8CH 44-PLCC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| AD7891YPZ-1REEL | 功能描述:IC DAS 12BIT 8CH 44-PLCC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。