参数资料
型号: AD7327BRUZ-REEL7
厂商: Analog Devices Inc
文件页数: 25/37页
文件大小: 0K
描述: IC ADC 12BIT+ SAR 8CHAN 20TSSOP
标准包装: 1,000
位数: 12
采样率(每秒): 500k
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
功率耗散(最大): 17mW
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: 20-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 20-TSSOP
包装: 带卷 (TR)
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
配用: EVAL-AD7327CBZ-ND - BOARD EVALUATION FOR AD7327
AD7327
Rev. B | Page 30 of 36
POWER VS. THROUGHPUT RATE
The power consumption of the AD7327 varies with throughput
rate. The static power consumed by the AD7327 is very low, and
significant power savings can be achieved as the throughput rate is
reduced. Figure 51 and Figure 52 shows the power vs. throughput
rate for the AD7327 at a VCC of 3 V and 5 V, respectively. Both
plots clearly show that the average power consumed by the
AD7327 is greatly reduced as the sample frequency is reduced.
This is true whether a fixed SCLK value is used or if it is scaled
with the sampling frequency. Figure 51 and Figure 52 show the
power consumption when operating in normal mode for a
variable SCLK that scales with the sampling frequency.
12
0
THROUGHPUT RATE (kSPS)
A
VER
A
G
E
PO
W
ER
(m
W
)
10
8
6
4
2
100
200
300
400
500
VARIABLE SCLK
VCC = 3V
VDD/VSS = ±12V
TA = 25°C
INTERNAL REFERENCE
05401-
052
Figure 51. Power vs. Throughput Rate with 3 V VCC
20
0
THROUGHPUT RATE (kSPS)
A
VER
A
G
E
PO
W
ER
(m
W
)
18
16
14
12
10
8
6
4
2
100
200
300
400
500
VARIABLE SCLK
VCC = 5V
VDD/VSS = ±12V
TA = 25°C
INTERNAL REFERENCE
05401-
053
Figure 52. Power vs. Throughput Rate with 5 V VCC
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