参数资料
型号: AD7452BRTZ-R2
厂商: Analog Devices Inc
文件页数: 25/29页
文件大小: 0K
描述: IC ADC 12BIT 555KSPS SOT23-8
标准包装: 1
位数: 12
采样率(每秒): 555k
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
功率耗散(最大): 7.25mW
电压电源: 单电源
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: SOT-23-8
供应商设备封装: SOT-23-8
包装: 标准包装
输入数目和类型: 1 个差分,双极
产品目录页面: 777 (CN2011-ZH PDF)
其它名称: AD7452BRTZ-R2DKR
AD7452
Rev. B | Page 4 of 28
Parameter
Test Conditions/Comments
B Version2
Unit
CONVERSION RATE
Conversion Time
1.6 s with a 10 MHz SCLK
16
SCLK cycles
Track-and-Hold Acquisition Time3
Sine wave input
200
ns max
Step input
290
ns max
Throughput Rate
555
kSPS max
POWER REQUIREMENTS
VDD
Range: 3 V + 20%/–10%;
5 V ± 5%
2.7/5.25
V min/V max
Normal Mode (Static)
SCLK on or off
0.5
mA typ
Normal Mode (Operational)
VDD = 4.75 V to 5.25 V
1.5
mA max
VDD = 2.7 V to 3.6 V
1.2
mA max
Full Power-Down Mode
SCLK on or off
1
A max
Power Dissipation
Normal Mode (Operational)
VDD = 5 V, 1.55 mW typ for 100 kSPS9
7.25
mW max
VDD = 3 V, 0.64 mW typ for 100 kSPS9
3.3
mW max
Full Power-Down
VDD = 5 V, SCLK on or off
5
W max
VDD = 3 V, SCLK on or off
3
W max
1 Common-mode voltage. The input signal can be centered on a dc common-mode voltage in the range specified in
and
.
Figure 23
Figure 24
2 Temperature ranges as follows: B Version: –40°C to +85°C.
3 See
section.
Terminology
4 Analog inputs with slew rates exceeding 27 V/s (full-scale input sine wave > 3.5 MHz) within the acquisition time may cause an incorrect result to be returned by the
converter.
5 Because the input spans of VIN+ and VIN– are both VREF and are 180° out of phase, the differential voltage is 2 × VREF.
6 The AD7452 is functional with a reference input from 100 mV; for VDD = 5 V, the reference can range up to 3.5 V.
7 The AD7452 is functional with a reference input from 100 mV; for VDD = 3 V, the reference can range up to 2.2 V.
8 Guaranteed by characterization.
9 See
section.
Power vs. Throughput Rate
10 Measured with a midscale dc input.
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