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參數(shù)資料
| 型號： | AD7457BRT-REEL7 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | Low Power, Pseudo Differential, 100 kSPS 12-Bit ADC in an 8-Lead SOT-23 |
| 中文描述： | 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8 |
| 封裝： | MO-178BA, SOT-23, 8 PIN |
| 文件頁數(shù)： | 15/20頁 |
| 文件大?。?/td> | 532K |
| 代理商： | AD7457BRT-REEL7 |
AD7457
Rev. A | Page 4 of 20
Parameter
Test Conditions/Comments
B Version1
Unit
POWER REQUIREMENTS
VDD
2.7/5.25
V min/max
During Conversion6
VDD = 4.75 V to 5.25 V
1.5
mA max
VDD = 2.7 V to 3.6 V
1.2
mA max
Normal Mode (Static)
SCLK on or off
0.5
mA typ
Normal Mode (Operational)
VDD = 4.75 V to 5.25 V
0.7
mA max
VDD= 2.7 V to 3.6 V
0.33
mA max
Power-Down
SCLK on or off
1
A max
Power Dissipation
Normal Mode (Operational)
VDD = 5 V
3
mW max
VDD = 3 V
0.9
mW max
Power-Down
VDD = 5 V; SCLK on or off
5
W max
VDD = 3 V; SCLK on or off
3
W max
1 Temperature range for B version: 40°C to +85°C.
2 See the
section.
Terminology
3 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.
4 A dc input is applied to VIN– to provide a pseudo ground for VIN+.
5 The AD7457 is functional with a reference input range of 100 mV to VDD.
6 Guaranteed by characterization.
7 See the
section.
Power Consumption
8 Measured with a full-scale dc input.
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