AD7865-1(1999) 查看數據表（PDF） - Analog Devices
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AD7865-1 Datasheet PDF : 19 Pages
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AD7865
Parameter
A, Y Versions1 B Version Units
REFERENCE INPUT/OUTPUT
VREF IN Input Voltage Range
VREF IN Input Capacitance6
VREF OUT Output Voltage
VREF OUT Error @ +25°C
VREF OUT Error TMIN to TMAX
VREF OUT Temperature Coefficient
VREF OUT Output Impedance
LOGIC INPUTS
Input High Voltage, VINH
Input Low Voltage, VINL
Input Current, IIN
Input
Capacitance,
C
6
IN
LOGIC OUTPUTS
Output High Voltage, VOH
Output Low Voltage, VOL
DB13–DB0
High Impedance
Leakage Current
Capacitance6
Output Coding
AD7865-1, AD7865-3
AD7865-2
2.375/2.625
10
2.5
± 10
± 20
25
6
2.4
0.8
± 10
10
4.0
0.4
2.375/2.625
10
2.5
± 10
± 20
25
6
VMIN/VMAX
pF max
V␣ nom
mV max
mV max
ppm/°C typ
kΩ typ
2.4
V min
0.8
V max
± 10
µA max
10
pF max
4.0
V min
0.4
V max
± 10
± 10
10
10
Twos Complement
Straight (Natural) Binary
µA max
pF max
CONVERSION RATE
Conversion Time
2.4
Track/Hold Acquisition Time2, 3
0.35
Throughput Time
350
100
2.4
µs max
0.35
µs max
350
kSPS max
100
kSPS max
POWER REQUIREMENTS
VDD
IDD
AD7865-1
+5
+5
V nom
Normal Mode
32
32
mA max
Standby Mode
20
20
µA max
AD7865-2
Normal Mode
30
30
mA max
Standby Mode
20
20
µA max
AD7865-3
Normal Mode
32
32
mA max
Standby Mode
20
20
µA max
Power Dissipation
AD7865-1
Normal Mode
160
160
mW max
Standby Mode
100
100
µW max
AD7865-2
Normal Mode
150
150
mW max
Standby Mode
100
100
µW max
AD7865-3
Normal Mode
160
160
mW max
Standby Mode
100
100
µW max
NOTES
1Temperature ranges are as follows : A, B Versions: –40°C to +85°C, Y Version: –40°C to +105°C.
2Performance measured through full channel (SHA and ADC).
3See Terminology.
4Total Harmonic Distortion and Peak Harmonic or Spurious Noise are specified at –83 dBs for the AD7865-2.
5Measured between any two channels with the other two channels grounded.
6Sample tested @ +25°C to ensure compliance.
Specifications subject to change without notice.
Test Conditions/Comments
2.5 V ± 5%
See Reference Section
VDD = 5 V ± 5%
VDD = 5 V ± 5%
ISOURCE = 400 µA
ISINK = 1.6 mA
For Single Channel
For Single Channel
For All Four Channels
±5% for Specified Performance
Typically 23 mA, Logic Inputs = 0 V or VDD
Typically 20 mA, Logic Inputs = 0 V or VDD
Typically 23 mA, Logic Inputs = 0 V or VDD
Typically 115␣ mW. VDD = +5 V
Typically 15␣ µW
Typically 100␣ mW. VDD = +5 V
Typically 15␣ µW
Typically 115␣ mW. VDD = +5 V
Typically 15␣ µW
REV. A
–3–
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