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AD7927BRUZ 数据表(PDF) 4 Page - Analog Devices

部件名 AD7927BRUZ
功能描述  8-Channel, 200 kSPS, 12-Bit ADC with Sequencer in 20-Lead TSSOP
Download  28 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD7927BRUZ 数据表(HTML) 4 Page - Analog Devices

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AD7927
Data Sheet
Rev. C | Page 4 of 28
Parameter
B Version1
Unit
Test Conditions/Comments
LOGIC OUTPUTS
Output High Voltage, VOH
VDRIVE − 0.2
V min
ISOURCE = 200 μA, AVDD = 2.7 V to 5.25 V
Output Low Voltage, VOL
0.4
V max
ISINK = 200 μA
Floating-State Leakage Current
±1
μA max
Floating-State Output Capacitance3
10
pF max
Output Coding
Straight (Natural) Binary
Coding bit set to 1
Twos Complement
Coding bit set to 0
CONVERSION RATE
Conversion Time
800
ns max
16 SCLK cycles with SCLK at 20 MHz
Track-and-Hold Acquisition Time
300
ns max
Sine wave input
300
ns max
Full-scale step input
Throughput Rate
200
kSPS max
See Serial Interface section
POWER REQUIREMENTS
AVDD
2.7/5.25
V min/max
VDRIVE
2.7/5.25
V min/max
IDD4
Digital inputs = 0 V or VDRIVE
During Conversion
2.7
mA max
AVDD = 4.75 V to 5.25 V, fSCLK = 20 MHz
2
mA max
AVDD = 2.7 V to 3.6 V, fSCLK = 20 MHz
Normal Mode (Static)
600
μA typ
AVDD = 2.7 V to 5.25 V, SCLK on or off
Normal Mode (Operational) fSAMPLE = 200 kSPS
1.5
mA max
AVDD = 4.75 V to 5.25 V, fSCLK = 20 MHz
1.2
mA max
AVDD = 2.7 V to 3.6 V, fSCLK = 20 MHz
Using Auto Shutdown Mode fSAMPLE = 200 kSPS
900
μA typ
AVDD = 4.75 V to 5.25 V, fSCLK = 20 MHz
650
μA typ
AVDD = 2.7 V to 3.6 V, fSCLK = 20 MHz
Auto Shutdown (Static)
0.5
μA max
SCLK on or off (20 nA typ)
Full Shutdown Mode
0.5
μA max
SCLK on or off (20 nA typ)
Power Dissipation4
Normal Mode (Operational)
7.5
mW max
AVDD = 5 V, fSCLK = 20 MHz
3.6
mW max
AVDD = 3 V, fSCLK = 20 MHz
Auto Shutdown (Static)
2.5
μW max
AVDD = 5 V
1.5
μW max
AVDD = 3 V
Full Shutdown Mode
2.5
μW max
AVDD = 5 V
1.5
μW max
AVDD = 3 V
1 Temperature ranges as follows: B Version: −40°C to +85°C; W Version: −40°C to +125°C.
2 See Terminology section.
3 Sample tested @ 25°C to ensure compliance.
4 See Power vs. Throughput Rate section.


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