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| 型号： | AD7766BRUZ-1 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 9/25页 |
| 文件大小： | 0K |
| 描述： | IC ADC 24BIT 64KSPS SAR 16TSSOP |
| 标准包装： | 1 |
| 位数： | 24 |
| 采样率（每秒）： | 64k |
| 数据接口： | 串行 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 18mW |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 管件 |
| 输入数目和类型： | 1 个差分，单极 |
| 产品目录页面： | 779 (CN2011-ZH PDF) |
| 配用： | EVAL-AD7766EDZ-ND - BOARD EVAL AD7766 128KSPS 108DB EVAL-AD7766-2EDZ-ND - BOARD EVAL AD7766-2 32KSPS 114DB EVAL-AD7766-1EDZ-ND - BOARD EVAL AD7766-1 64KSPS 111DB |
AD7766
Rev. C | Page 16 of 24
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Figure 32. AD7766 Digital Filter Frequency Response
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Figure 33. AD7766-1 Digital Filter Frequency Response
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Figure 34. AD7766-2 Digital Filter Frequency Response
ANALOG INPUT STRUCTURE
The AD7766/AD7766-1/AD7766-2 are configured as a differential
input structure. A true differential signal is sampled between the
analog inputs VIN+ and VIN, Pin 4 and Pin 5, respectively. Using
differential inputs provides rejection of signals that are common
to both the VIN+ and VIN pins.
Figure 35 shows the equivalent analog input circuit of the
AD7766/AD7766-1/AD7766-2. The two diodes on each of the
differential inputs provide ESD protection for the analog inputs.
06
44
9-
21
9
VIN+
VREF+
C1
D
GND
AGND
RIN C2
VIN–
VREF+
C1
D
GND
AGND
RIN C2
Figure 35. Equivalent Analog Input Structure
Take care to ensure that the analog input signal does not exceed
the reference supply voltage (VREF+) by more than 0.3 V, as specified
in the Absolute Maximum Ratings section. If the input voltage
exceeds this limit, the diodes become forward biased and start
to conduct current. The diodes can handle 130 mA maximum.
The impedance of the analog inputs can be modeled as a parallel
combination of C1 and the network formed by the series con-
nection of RIN, C1, and C2. The value of C1 is dominated by the
pin capacitance. RIN is typically 1.4 kΩ, the lumped component
of serial resistors and the RON of the switches. C2 is typically
22 pF, and its value is dominated by the sampling capacitor.
SUPPLY AND REFERENCE VOLTAGES
The AD7766/AD7766-1/AD7766-2 operate from a 2.5 V supply
applied to the DVDD and AVDD pins. The interface is specified to
operate between 1.7 V and 3.6 V. The AD7766/AD7766-1/
AD7766-2 operate from a reference input in the range of 2.2 V
to 2 × AVDD applied to the VREF+ pin. The nominal reference
supply voltage is 5 V, but a 2.5 V supply can also be used. When
using a 5 V reference, the recommended reference devices are
the reference input (VREF+) operates both as a reference supply
and as a power supply to the AD7766/AD7766-1/AD7766-2
devices. Therefore, when using a 5 V reference input, the full-scale
differential input range of the AD7766/AD7766-1/AD7766-2 is
10 V. See the Driving the AD7766/AD7766-1/AD7766-2 section
for details on the maximum input voltage.
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| AD7766BRUZ-1-RL7 | 功能描述:IC ADC 24BIT 64KSPS SAR 16TSSOP 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:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
| AD7766BRUZ-2 | 功能描述:IC ADC 24BIT 32KSPS SAR 16TSSOP 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 系列:microPOWER™ 位数:8 采样率（每秒）:1M 数据接口:串行，SPI? 转换器数目:1 功率耗散（最大）:- 电压电源:模拟和数字 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘 供应商设备封装:24-VQFN 裸露焊盘（4x4） 包装:Digi-Reel® 输入数目和类型:8 个单端，单极 产品目录页面:892 (CN2011-ZH PDF) 其它名称:296-25851-6 |
| AD7766BRUZ-2-RL7 | 功能描述:IC ADC 24BIT 32KSPS SAR 16TSSOP 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:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
| AD7766BRUZ-RL7 | 功能描述:IC ADC 24BIT 128KSPS SAR 16TSSOP 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:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
| AD7767 | 制造商:AD 制造商全称:Analog Devices 功能描述:24-Bit, 8.5 mW, 109 dB, 128/64/32 kSPS ADCs |
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