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参数资料
| 型号： | XRD8785 |
| 厂商： | Exar Corporation |
| 英文描述： | CMOS 8-Bit High Speed Analog-to-Digital Converter |
| 中文描述： | 的CMOS 8位高速模拟数字转换器 |
| 文件页数： | 10/15页 |
| 文件大小： | 1356K |
| 代理商： | XRD8785 |
XRD8785
4
Rev. 3.00
ELECTRICAL CHARACTERISTICS TABLE (CONT'D)
UNLESS OTHERWISE SPECIFIED: AV
DD = DVDD = 5V, FS = 15MHZ (50% DUTY CYCLE),
V
RT = 2.6V, VRB = 0.6V, TA = 25°C
25°C
Parameter
Symbol
Min
Typ
Max
Units
Test Conditions/Comments
ACPARAMETERS
Differential Gain Error
dg
2
%
FS = 4 x NTSC
Differential Phase Error
d
ph
1
Degree
FS = 4 x NTSC
POWER SUPPLIES
Operating Voltage (AV
DD, DVDD)
9
V
DD
4.5
5
5.5
V
Current (AGND + DGND)
I
DD
15
25
mA
Does not include ref. current
NOTES
1. The difference between the measured and the ideal code width (V
REF/256) is the DNL error (Figure 3). The INL error is the maximum distance (in LSBs) from the best fit line to any transition
voltage (Figure 4). Accuracy is a function of the sampling rate (FS).
2. Guaranteed, not tested
3. Specified values guarantee functionality. Refer to other parameters for accuracy.
4. –1dB bandwidth is a measure of performance of the A/D input stage (S/H + amplifier). Refer to other parameters for accuracy within the specified bandwidth.
5. See V
IN input equivalent circuit (Figure 5). Switched capacitor analog input requires driver with low output resistance.
6. All inputs have diodes to DV
DD and DGND. Input DC currents will not exceed specified limits for any input voltage between DGND and DVDD .
7. t
R , tF should be limited to >5ns for best results.
8. Depends on the RC load connected to the output pin.
9. AGND & DGND pins are connected through the silicon substrate. Connect together at the package and to the analog ground plane.
Specifications are subject to change without notice
ABSOLUTE MAXIMUM RATINGS (T
A = +25
°C unless otherwise noted)1, 2, 3
V
DD to GND .......................................................... 7V
V
RT & V RB ......................... VDD +0.5 to GND –0.5V
V
IN
..................................... V
DD +0.5 to GND –0.5V
All Inputs ............................ V
DD +0.5 to GND –0.5V
All Outputs ......................... V
DD +0.5 to GND –0.5V
Storage Temperature .........................–65 to +150°C
Lead Temperature (Soldering 10 seconds) ... +300°C
Package Power Dissipation Rating @ 75°C
PDIP, SOIC, SOP ................................. 675mW
Derates above 75°C ........................... 12mW/°C
NOTES:
1. Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation at or above this specification
is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.
2. Any input pin which can see a value outside the absolute maximum ratings should be protected by Schottky diode clamps (HP5082-2835) from input pin to the supplies. All inputs have protection
diodes which will protect the device from short transients outside the supplies of less than 100mA for less than 100ms.
3. V
DD refers to AVDD and DVDD. GND refers to AGND and DGND.
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相关代理商/技术参数 |
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| XRD8785AID | 制造商:EXAR 制造商全称:EXAR 功能描述:CMOS 8-Bit High Speed Analog-to-Digital Converter |
| XRD8785AID-F | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| XRD8785AIDTR-F | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| XRD8785AIK | 制造商:EXAR 制造商全称:EXAR 功能描述:CMOS 8-Bit High Speed Analog-to-Digital Converter |
| XRD8785AIKTR | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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