- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄2139 > ADA4932-1YCPZ-RL (Analog Devices Inc)IC AMP DIFF LP 80MA 16LFCSP PDF資料下載
參數(shù)資料
| 型號(hào)： | ADA4932-1YCPZ-RL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 14/29頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP DIFF LP 80MA 16LFCSP |
| 設(shè)計(jì)資源： | Single-Ended-to-Differential High Speed Drive Circuit for 16-Bit, 10 MSPS AD7626 ADC (CN0105) |
| 標(biāo)準(zhǔn)包裝： | 5,000 |
| 放大器類型： | 差分 |
| 電路數(shù)： | 1 |
| 輸出類型： | 差分 |
| 轉(zhuǎn)換速率： | 2800 V/µs |
| -3db帶寬： | 560MHz |
| 電流 - 輸入偏壓： | 2.5µA |
| 電壓 - 輸入偏移： | 500µV |
| 電流 - 電源： | 9.6mA |
| 電流 - 輸出 / 通道： | 80mA |
| 電壓 - 電源，單路/雙路(±)： | 3 V ~ 11 V，±1.5 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 105°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-VFQFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 16-LFCSP-VQ |
| 包裝： | 帶卷 (TR) |
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頁當(dāng)前第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頁第27頁第28頁第29頁
ADA4932-1/ADA4932-2
Data Sheet
APPLICATIONS INFORMATION
ANALYZING AN APPLICATION CIRCUIT
The ADA4932-x uses high open-loop gain and negative feedback
to force its differential and common-mode output voltages in
such a way as to minimize the differential and common-mode
error voltages. The differential error voltage is defined as the
voltage between the differential inputs labeled +IN and IN
(see Figure 55). For most purposes, this voltage can be assumed
to be zero. Similarly, the difference between the actual output
common-mode voltage and the voltage applied to VOCM can also
be assumed to be zero. Starting from these principles, any applica-
tion circuit can be analyzed.
SETTING THE CLOSED-LOOP GAIN
Using the approach described in the Analyzing an Application
can be determined by
G
F
dm
IN
dm
OUT
R
V
=
,
This presumes that the input resistors (RG) and feedback resistors
(RF) on each side are equal.
ESTIMATING THE OUTPUT NOISE VOLTAGE
The differential output noise of the ADA4932-x can be
estimated using the noise model in Figure 56. The input-
referred noise voltage density, vnIN, is modeled as a differential
input, and the noise currents, inIN and inIN+, appear between
each input and ground. The output voltage due to vnIN is obtained
by multiplying vnIN by the noise gain, GN (defined in the GN
equation that follows). The noise currents are uncorrelated with
the same mean-square value, and each produces an output voltage
that is equal to the noise current multiplied by the associated
feedback resistance. The noise voltage density at the VOCM pin is
vnCM. When the feedback networks have the same feedback factor,
as is true in most cases, the output noise due to vnCM is common
mode. Each of the four resistors contributes (4kTRxx)1/2. The
noise from the feedback resistors appears directly at the output,
and the noise from the gain resistors appears at the output multip-
multiplication factors, and the output-referred noise density terms.
ADA4932-x
+
RF2
VnOD
VnCM
VOCM
VnIN
RF1
RG2
RG1
VnRF1
VnRF2
VnRG1
VnRG2
inIN+
inIN–
07752-
047
Figure 56. Noise Model
Table 11. Output Noise Voltage Density Calculations for Matched Feedback Networks
Input Noise Contribution
Input Noise Term
Input Noise
Voltage Density
Output
Multiplication Factor
Differential Output Noise
Voltage Density Term
Differential Input
vnIN
GN
vnO1 = GN(vnIN)
Inverting Input
inIN
inIN × (RF2)
1
vnO2 = (inIN)(RF2)
Noninverting Input
inIN+
inIN+ × (RF1)
1
vnO3 = (inIN+)(RF1)
VOCM Input
vnCM
0
vnO4 = 0 V
Gain Resistor, RG1
vnRG1
(4kTRG1)1/2
RF1/RG1
vnO5 = (RF1/RG1)(4kTRG1)1/2
Gain Resistor, RG2
vnRG2
(4kTRG2)1/2
RF2/RG2
vnO6 = (RF2/RG2)(4kTRG2)1/2
Feedback Resistor, RF1
vnRF1
(4kTRF1)1/2
1
vnO7 = (4kTRF1)1/2
Feedback Resistor, RF2
vnRF2
(4kTRF2)1/2
1
vnO8 = (4kTRF2)1/2
Table 12. Differential Input, DC-Coupled
Nominal Gain (dB)
RF ()
RG ()
RIN, dm ()
Differential Output Noise Density (nV/√Hz)
0
499
998
9.25
6
499
249
498
12.9
10
768
243
486
18.2
Table 13. Single-Ended Ground-Referenced Input, DC-Coupled, RS = 50
Nominal Gain (dB)
RF ()
RG1 ()
RT () (Std 1%) RIN, cm ()
Differential Output Noise Density (nV/√Hz)
0
511
499
53.6
665
525
9.19
6
523
249
57.6
374
276
12.6
10
806
243
57.6
392
270
17.7
1
RG2 = RG1 + (RS||RT).
Rev. C | Page 20 of 28
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADA4939-2YCPZ-R7 | IC AMP DIFF DUAL ULDIST 24LFCSP |
| ADA4940-1ARZ-R7 | IC DIFF ADC DVR 18BIT LN 8SOIC |
| ADA4950-1YCPZ-RL | IC AMP DIFF LP 114MA 16LFCSP |
| ADEL2020ARZ-20-RL | IC OPAMP CF LN LP 60MA 20SOIC |
| ADL5561ACPZ-R7 | IC AMP DIFF RF/IF 2.9GHZ 16LFCSP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADA4932-1YCPZ-RL1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Power Differential ADC Driver |
| ADA4932-2 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Power Differential ADC Driver |
| ADA4932-2YCP-EBZ | 功能描述:BOARD EVAL FOR ADA4932-2YCP RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 運(yùn)算放大器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- |
| ADA4932-2YCPZ-R2 | 功能描述:IC AMP DIFF DUAL LP 80MA 24LFCSP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 放大器類型:電壓反饋 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:33 V/µs 增益帶寬積:20MHz -3db帶寬:30MHz 電流 - 輸入偏壓:2nA 電壓 - 輸入偏移:3000µV 電流 - 電源:2.5mA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 16.5 V，±2.25 V ~ 8.25 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOIC 包裝:帶卷 (TR) |
| ADA4932-2YCPZ-R2 | 制造商:Analog Devices 功能描述:IC DIFF AMP 560MHZ 2800V/ LFCSP-16 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。