參數(shù)資料
型號： AD9735BBCZRL
廠商： Analog Devices Inc
文件頁數(shù)： 43/72頁
文件大?。?/td> 0K
描述： IC DAC 12BIT 1.2GSPS 160-CSPBGA
產(chǎn)品培訓(xùn)模塊： Data Converter Fundamentals
DAC Architectures
標(biāo)準(zhǔn)包裝： 1,500
位數(shù)： 12
數(shù)據(jù)接口： 并聯(lián)
轉(zhuǎn)換器數(shù)目： 1
電壓電源： 模擬和數(shù)字
功率耗散（最大）： 550mW
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 160-LFBGA，CSPBGA
供應(yīng)商設(shè)備封裝： 160-CSPBGA（12x12）
包裝： 帶卷 (TR)
輸出數(shù)目和類型： 2 電流，單極
采樣率（每秒）： 1.2G
AD9734/AD9735/AD9736
Rev. A | Page 48 of 72
ANALOG CONTROL REGISTERS
The AD973x includes some registers for optimizing its analog
performance. These registers include temperature trim for the
band gap, noise reduction in the output current mirror, and
output current mirror headroom adjustments.
BAND GAP TEMPERATURE CHARACTERISTIC
TRIM BITS
Using TRMBG<2:0> (Reg. 14, Bits 2:0), the temperature
characteristic of the internal band gap can be trimmed to
minimize the drift over temperature, as shown in Figure 86.
–50 –40 –30 –20 –10 0 10203040506070
8090
TEMPERATURE (
°C)
VREF
(
V
)
1.23
1.22
1.21
1.2
1.19
1.18
04862-084
000
010
001
011
101
110
111
100
Figure 86. Band Gap Temperature Characteristic for Various TRMBG Values
The temperature changes are sensitive to process variations,
and Figure 86 may not be representative of all fabrication lots.
Optimum adjustment requires measurement of the device
operation at two temperatures and development of a trim
algorithm to program the correct TRMBG<2:0> values in
external nonvolatile memory.
MIRROR ROLL-OFF FREQUENCY CONTROL
With MSEL <1:0> (Reg. 14, Bits 7:6), the user can adjust the
noise contribution of the internal current mirror to optimize
the 1/f noise. Figure 87 shows MSEL vs. the 1/f noise with
20 mA full-scale current into a 50 Ω resistor.
F (kHz)
NOISE
(IdBm/Hz)
–110
–115
–120
–125
–130
–140
–135
1
10
100
04862-0-085
MSEL0
MSEL2
MSEL1
MSEL3
Figure 87. 1/f Noise with Respect to MSEL Bits
HEADROOM BITS
HDRM<7:0> (Reg. 15, Bits 7:0) are for internal evaluation.
Changing the default reset values is not recommended.
VOLTAGE REFERENCE
The AD973x output current is set by a combination of digital
control bits and the I120 reference current, as shown in
CURRENT
SCALING
FSC<9:0>
AD973x
DAC
IFULL-SCALE
10k
Ω
1nF
VREF
I120
AVSS
I120
VBG
1.2V
+
–
04862-086
Figure 88. Voltage Reference Circuit
The reference current is obtained by forcing the band gap
voltage across an external 10 kΩ resistor from I120 (Pin B14) to
ground. The 1.2 V nominal band gap voltage (VREF) generates a
120 μA reference current in the 10 kΩ resistor. This current is
adjusted digitally by FSC<9:0> (Reg. 2, Reg. 3) to set the output
full-scale current IFS:
>
<
×
+
×
=
0
.
9
1024
192
72
FSC
R
V
I
REF
FS
相關(guān)PDF資料
PDF描述
VE-264-MY-B1 CONVERTER MOD DC/DC 48V 50W
AD9776BSVZRL IC DAC 12BIT DUAL 1GSPS 100TQFP
NCS2553DR2G IC TRPL VIDEO AMP W/FILTER 8SOIC
VE-261-MY-B1 CONVERTER MOD DC/DC 12V 50W
VE-260-MY-B1 CONVERTER MOD DC/DC 5V 50W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD9735BBCZRL1 制造商:AD 制造商全稱:Analog Devices 功能描述:10-/12-/14-Bit, 1200 MSPS DACS
AD9735-DPG2-EBZ 功能描述:BOARD EVAL FOR AD9735 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 數(shù)模轉(zhuǎn)換器 (DAC) 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:- DAC 的數(shù)量:4 位數(shù):12 采樣率（每秒）:- 數(shù)據(jù)接口:串行，SPI? 設(shè)置時(shí)間:3µs DAC 型:電流/電壓 工作溫度:-40°C ~ 85°C 已供物品:板 已用 IC / 零件:MAX5581
AD9735-EB 制造商:Analog Devices 功能描述:
AD9735-EBZ 制造商:Analog Devices 功能描述:Evaluation Board For AD9735 DAC, 10-/12-/14-Bit, 1200 MSPS DACs 制造商:Analog Devices 功能描述:EVAL BD FOR AD9735 DAC, 10-/12-/14BIT, 1200 MSPS DACS - Bulk
AD9736 制造商:Analog Devices 功能描述:14-BIT, 1.2 GSPS TXDAC+? D/A CONVERTER - Bulk
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

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(jìn)入我的后臺，查看報(bào)價(jià)

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

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*