参数资料
型号: AD7329BRUZ
厂商: Analog Devices Inc
文件页数: 15/41页
文件大小: 0K
描述: IC ADC 12BIT 8CH MUX SPI 24TSSOP
标准包装: 62
位数: 12
采样率(每秒): 1M
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
功率耗散(最大): 30mW
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: 24-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 24-TSSOP
包装: 管件
输入数目和类型: 8 个单端,单极;8 个单端,双极;4 个差分,单极;4 个差分,双极
产品目录页面: 777 (CN2011-ZH PDF)
配用: EVAL-AD7329CBZ-ND - BOARD EVALUATION FOR AD7329CBZ
Data Sheet
AD7329
Rev. B | Page 21 of 40
This voltage is set up externally, and its range varies with reference
voltage. As the reference voltage increases, the common-mode
range decreases. When the differential inputs are driven with an
amplifier, the actual common-mode range is determined by the
amplifier’s output swing. If the differential inputs are not driven
from an amplifier, the common-mode range is determined by
the supply voltage on the VDD supply pin and the VSS supply pin.
When a conversion takes place, the common mode is rejected,
resulting in a noise-free signal of amplitude 2 × (4 × VREF) to +2 ×
(4 × VREF), corresponding to Digital Codes 4096 to +4095.
±16.5V VDD/VSS
±12V VDD/VSS
5
–6
V
CO
M
RANG
E
(
V
)
4
3
2
1
0
–1
–2
–3
–4
–5
VCC = 3V
VREF = 3V
±2.5V
RANGE
±10V
RANGE
±5V RANGE
±2.5V
RANGE
±5V RANGE
±10V
RANGE
05402-
035
Figure 38. Common-Mode Range for VCC = 3 V and REFIN/REFOUT = 3 V
±16.5V VDD/VSS
±12V VDD/VSS
V
CO
M
RANG
E
(
V
)
VCC = 5V
VREF = 3V
8
–4
6
4
2
0
–2
±2.5V
RANGE
±10V
RANGE
±5V RANGE
±2.5V
RANGE
±5V RANGE
±10V
RANGE
05402-
036
Figure 39. Common-Mode Range for VCC = 5 V and REFIN/REFOUT = 3 V
6
–8
4
2
0
–2
–4
–6
±16.5V VDD/VSS
±12V VDD/VSS
V
CO
M
RANG
E
(
V
)
VCC = 3V
VREF = 2.5V
±2.5V
RANGE
±10V
RANGE
±5V RANGE
±2.5V
RANGE
±5V RANGE
±10V
RANGE
05402-
037
Figure 40. Common-Mode Range for VCC = 3 V and REFIN/REFOUT = 2.5 V
8
–8
6
4
2
0
–2
–4
–6
05402-
038
±16.5V VDD/VSS
±12V VDD/VSS
V
CO
M
RANG
E
(
V
)
VCC = 5V
VREF = 2.5V
±2.5V
RANGE
±10V
RANGE
±5V RANGE
±2.5V
RANGE
±5V RANGE
±10V
RANGE
Figure 41. Common-Mode Range for VCC = 5 V and REFIN/REFOUT = 2.5 V
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