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参数资料
| 型号： | LTC2291IUP#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/28页 |
| 文件大小： | 0K |
| 描述： | IC ADC DUAL 12BIT 25MSPS 64QFN |
| 标准包装： | 40 |
| 位数： | 12 |
| 采样率（每秒）： | 25M |
| 数据接口： | 并联 |
| 转换器数目： | 2 |
| 功率耗散（最大）： | 180mW |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 64-WFQFN 裸露焊盘 |
| 供应商设备封装： | 64-QFN（9x9） |
| 包装： | 管件 |
| 输入数目和类型： | 2 个单端，双极; 2 个差分, 双极 |
| 产品目录页面： | 1349 (CN2011-ZH PDF) |
第1页第2页当前第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页
LTC2293/LTC2292/LTC2291
11
229321fa
UU
U
PI FU CTIO S
AINA+ (Pin 1): Channel A Positive Differential Analog
Input.
AINA– (Pin 2): Channel A Negative Differential Analog
Input.
REFHA (Pins 3, 4): Channel A High Reference. Short
together and bypass to Pins 5, 6 with a 0.1
F ceramic chip
capacitor as close to the pin as possible. Also bypass to
Pins 5, 6 with an additional 2.2
F ceramic chip capacitor
and to ground with a 1
F ceramic chip capacitor.
REFLA (Pins 5, 6): Channel A Low Reference. Short
together and bypass to Pins 3, 4 with a 0.1
F ceramic chip
capacitor as close to the pin as possible. Also bypass to
Pins 3, 4 with an additional 2.2
F ceramic chip capacitor
and to ground with a 1
F ceramic chip capacitor.
VDD (Pins 7, 10, 18, 63): Analog 3V Supply. Bypass to
GND with 0.1
F ceramic chip capacitors.
CLKA (Pin 8): Channel A Clock Input. The input sample
starts on the positive edge.
CLKB (Pin 9): Channel B Clock Input. The input sample
starts on the positive edge.
REFLB (Pins 11, 12): Channel B Low Reference. Short
together and bypass to Pins 13, 14 with a 0.1
F ceramic
chip capacitor as close to the pin as possible. Also bypass
to Pins 13, 14 with an additional 2.2
F ceramic chip ca-
pacitor and to ground with a 1
F ceramic chip capacitor.
REFHB (Pins 13, 14): Channel B High Reference. Short
together and bypass to Pins 11, 12 with a 0.1
F ceramic
chip capacitor as close to the pin as possible. Also bypass
to Pins 11, 12 with an additional 2.2
F ceramic chip ca-
pacitor and to ground with a 1
F ceramic chip capacitor.
AINB– (Pin 15): Channel B Negative Differential Analog
Input.
AINB+ (Pin 16): Channel B Positive Differential Analog
Input.
GND (Pins 17, 64): ADC Power Ground.
SENSEB (Pin 19): Channel B Reference Programming Pin.
Connecting SENSEB to VCMB selects the internal reference
and a
±0.5V input range. VDD selects the internal reference
and a
±1V input range. An external reference greater than
0.5V and less than 1V applied to SENSEB selects an input
range of
±VSENSEB. ±1V is the largest valid input range.
VCMB (Pin 20): Channel B 1.5V Output and Input Common
Mode Bias. Bypass to ground with 2.2
F ceramic chip
capacitor. Do not connect to VCMA.
LTC2291: IOVDD vs Sample Rate,
5MHz Sine Wave Input, –1dB,
OVDD = 1.8V
LTC2291: IVDD vs Sample Rate,
5MHz Sine Wave Input, –1dB
LTC2291: SFDR vs Input Level,
fIN = 5MHz, 2V Range, 25Msps
TYPICAL PERFOR A CE CHARACTERISTICS
UW
SAMPLE RATE (Msps)
I VDD
(mA)
229321 G46
70
60
50
40
30
0
10
20
515
25
30
35
2V RANGE
1V RANGE
0
10
20
515
25
30
35
SAMPLE RATE (Msps)
I OVDD
(mA)
229321 G47
6
4
2
0
INPUT LEVEL (dBFS)
–60
–50
– 40
–20
–30
–10
0
SFDR
(dBc
AND
dBFS)
229321 G45
120
110
100
90
80
70
60
50
40
30
20
dBFS
dBc
90dBc SFDR
REFERENCE LINE
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| LTC2291UP | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual 12-Bit, 65/40/25Msps Low Power 3V ADCs |
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| LTC2292CUP#PBF | 功能描述:IC ADC DUAL 12BIT 40MSPS 64QFN RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 其它有关文件:TSA1204 View All Specifications 标准包装:1 系列:- 位数:12 采样率（每秒）:20M 数据接口:并联 转换器数目:2 功率耗散（最大）:155mW 电压电源:模拟和数字 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-TQFP 供应商设备封装:48-TQFP（7x7） 包装:Digi-Reel® 输入数目和类型:4 个单端，单极；2 个差分，单极 产品目录页面:1156 (CN2011-ZH PDF) 其它名称:497-5435-6 |
| LTC2292CUP#TRPBF | 功能描述:IC ADC DUAL 12BIT 40MSPS 64QFN RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 电压电源:单电源 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
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