AD7890SQ-2 查看數據表（PDF） - Analog Devices
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AD7890SQ-2 Datasheet PDF : 29 Pages
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AD7890
Parameter
LOGIC INPUTS
Input High Voltage, VINH
Input Low Voltage, VINL
Input Current, IIN
Input Capacitance, CIN5
LOGIC OUTPUTS
Output High Voltage, VOH
Output Low Voltage, VOL
Serial Data Output Coding
AD7890-10
AD7890-4
AD7890-2
CONVERSION RATE
Conversion Time
Track/Hold Acquisition Time2, 5
POWER REQUIREMENTS
VDD
IDD (Normal Mode)
IDD (Standby Mode)6 @ 25°C
Power Dissipation
Normal Mode
Standby Mode @ 25°C
A Versions1 B Versions S Version Unit
2.4
2.4
2.4
V min
0.8
0.8
0.8
V max
±10
±10
±10
μA max
10
10
10
pF max
4.0
4.0
4.0
V min
0.4
0.4
0.4
V max
Twos Complement
Straight (Natural) Binary
Straight (Natural) Binary
5.9
5.9
5.9
μs max
2
2
2
μs max
5
5
5
V nom
10
10
10
mA max
15
15
15
μA typ
50
50
50
mW max
75
75
75
μW typ
Test Conditions/Comments
VDD = 5 V ± 5%
VDD = 5 V ± 5%
VIN = 0 V to VDD
ISOURCE = 200 μA
ISINK = 1.6 mA
fCLK IN = 2.5 MHz, MUX OUT, connected to
SHA IN
± 5% for specified performance
Logic inputs = 0 V or VDD
Logic inputs = 0 V or VDD
Typically 30 mW
1 Temperature ranges are as follows: A, B Versions: −40°C to +85°C; S Version: −55°C to +125°C.
2 See the Terminology section.
3 This sample rate is only achievable when using the part in external clocking mode.
4 Full-scale error match applies to positive full scale for the AD7890-2 and AD7890-4. It applies to both positive and negative full scale for the AD7890-10.
5 Sample tested @ 25°C to ensure compliance.
6 Analog inputs on AD7890-10 must be at 0 V to achieve correct power-down current.
Rev. C | Page 4 of 28
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