AD7608 View Datasheet(PDF) - Analog Devices
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Description
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AD7608 Datasheet PDF : 32 Pages
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Data Sheet
AD7608
Parameter
ANALOG INPUT
Input Voltage Ranges
Analog Input Current
Input Capacitance 7
Input Impedance
REFERENCE INPUT/OUTPUT
Reference Input Voltage Range
DC Leakage Current
Input Capacitance7
Reference Output Voltage
Reference Temperature Coefficient
LOGIC INPUTS
Input High Voltage (VINH)
Input Low Voltage (VINL)
Input Current (IIN)
Input Capacitance (CIN)7
LOGIC OUTPUTS
Output High Voltage (VOH)
Output Low Voltage (VOL)
Floating-State Leakage Current
Floating-State Output Capacitance7
Output Coding
CONVERSION RATE
Conversion Time
Track-and-Hold Acquisition Time
Throughput Rate
POWER REQUIREMENTS
AVCC
VDRIVE
ITOTAL
Normal Mode (Static)
Normal Mode (Operational)8
Standby Mode
Shutdown Mode
Power Dissipation
Normal Mode (Static)
Normal Mode (Operational) 8
Standby Mode
Shutdown Mode
Test Conditions/Comments
RANGE = 1
RANGE = 0
10 V; see Figure 28
5 V; see Figure 28
REF SELECT = 1
REFIN/REFOUT
ISOURCE = 100 µA
ISINK = 100 µA
Twos complement
All eight channels included; see Table 3
Per channel, all eight channels included
Digital inputs = 0 V or VDRIVE
fSAMPLE = 200 kSPS
fSAMPLE = 200 kSPS
Min
Typ Max
Unit
±10
V
±5
V
5.4
µA
2.5
µA
5
pF
1
MΩ
2.475
2.5
7.5
2.49/
2.505
±10
2.525
±1
V
µA
pF
V
ppm/°C
0.9 × VDRIVE
5
V
0.1 × VDRIVE V
±2
µA
pF
VDRIVE − 0.2
V
0.2
V
±1 ±20
µA
5
pF
4
1
200
µs
µs
kSPS
4.75
5.25
V
2.3
5.25
V
16
22
mA
20
27
mA
5
8
mA
2
11
µA
80
115.5
mW
100 142
mW
25
42
mW
10
58
µW
1 Temperature range for B version is −40°C to +85°C.
2 See the Terminology section.
3 This specification applies when reading during a conversion or after a conversion. If reading during a conversion in parallel mode with VDRIVE = 5 V, SNR typically reduces by 1.5 dB
and THD by 3 dB.
4 LSB means least significant bit. With ±5 V input range, 1 LSB = 38.14 µV. With ±10 V input range, 1 LSB = 76.29 µV.
5 These specifications include the full temperature range variation and contribution from the internal reference buffer but do not include the error contribution from
the external reference.
6 Bipolar zero code error is calculated with respect to the analog input voltage.
7 Sample tested during initial release to ensure compliance.
8 Operational power/current figure includes contribution when running in oversampling mode.
Rev. A | Page 5 of 32
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