参数资料
| 型号： | CS5512-BSZ |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 2/26页 |
| 文件大小： | 0K |
| 描述： | IC ADC 20BIT EXTERNAL OSC 8-SOIC |
| 标准包装： | 100 |
| 位数： | 20 |
| 采样率（每秒）： | 326 |
| 数据接口： | 串行 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 2.5mW |
| 电压电源： | 双 ± |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.209"，5.30mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
| 输入数目和类型： | 1 个差分，双极 |
CS5510/11/12/13
10
DS337F4
2. GENERAL DESCRIPTION
The CS5510/11/12/13 are low-cost, easy-to-use,
ΔΣ analog-to-digital converters (ADCs) which use
charge balance techniques to achieve 16-bit
(CS5510/11) and 20-bit (CS5512/13)
perfor-
mance. The ADCs are available in a space-effi-
cient, 8-pin, SOIC package and are optimized for
measuring signals in weigh scale, process control,
and other industrial applications.
To accommodate these applications, the ADCs in-
clude a fourth-order
ΔΣ modulator and a digital fil-
ter. When configured with an external master clock
of 32.768 kHz, the filter in the CS5510/12 provides
better than 80 dB of simultaneous 50 and 60 Hz
line rejection, and outputs conversion words at
53.5 Sps. The CS5511/13 include an on-chip oscil-
lator which eliminates the need for an external
clock source.
The CS5510/11/12/13 ADCs are designed to oper-
ate from a single +5 V supply or a variety dual-sup-
ply configurations and are optimized to digitize
bipolar signals in industrial applications.
To achieve low cost, the CS5510/11/12/13 family
of converters have no on-chip calibration features.
The CS5510/11/12/13 offer very low offset drift,
low gain drift, and excellent linearity.
2.1
Analog Input
The CS5510/11/12/13 provides a differential input
span of approximately ±(0.80 ± 0.08) times the dif-
ferential voltage reference (VREF - V-). This trans-
lates to typically ±4.0 V fully differential when the
reference voltage between VREF and V- is 5 V,
and typically ±2.0 V fully differential at 2.5 V.
Note:
When a smaller reference voltage is used,
the resulting code widths are smaller. Since
the output codes exhibit more changing
codes for a fixed amount of noise, the
converter appears noisier.
2.1.1
Analog Input Model
Figure 3 illustrates the input model for the AIN
pins. The model includes a coarse/fine charge
buffer which reduces the dynamic current de-
mands from the signal source. The buffer is de-
signed to accommodate rail-to-rail (common-mode
plus signal) input voltages. Typical CVF (sampling)
current is about 10 nA. Application Note 30,
“Switched-capacitor A/D Input Structures”, details
various input architectures.
2.2
Voltage Reference Input
The voltage between the VREF and V- pins of the
converter determines the voltage reference for the
converter. This voltage can be as low as 250 mV,
or as great as (V+) - (V-). The VREF pin can be
connected directly to the V+ pin. This will establish
a voltage reference equal to (V+) - (V-) for the con-
verter. The effective resolution of the part (noise-
free bits for a single sample with no averaging) will
vary with VREF. Figure 4 shows how the VREF
voltage affects the noise-free resolution of the
AIN
φ Coarse
1
φ Fine
1
f = 32.768 kHz
V
≤ 25 mV
os
i
= fV
C
os
n
C = 12 p F
Figure 3. Input models for AIN+ and AIN- pins.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CS5512-BSZR | 功能描述:模数转换器 - ADC IC 20-Bit 8-Pin Delta Sigma 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 |
| CS5513 | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:16-bit and 20-bit, 8-pin ΔΣ ADCs |
| CS5513-BS | 功能描述:模数转换器 - ADC 20-Bit Delta Sigma ADC Int. OSC 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 |
| CS5513-BSR | 功能描述:模数转换器 - ADC IC 20-Bit 8-Pin Delta Sigma 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 |
| CS5513-BSZ | 功能描述:模数转换器 - ADC 20-Bit Delta Sigma ADC Int. OSC 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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