參數(shù)資料
型號(hào)： EVAL-AD7608EDZ
廠商： Analog Devices Inc
文件頁數(shù)： 28/32頁
文件大小： 0K
描述： BOARD EVAL FOR AD7608
標(biāo)準(zhǔn)包裝： 1
ADC 的數(shù)量： 8
位數(shù)： 18
采樣率（每秒）： 200k
數(shù)據(jù)接口： DSP，MICROWIRE?，并聯(lián)，QSPI?，串行，SPI?
輸入范圍： ±10 V
在以下條件下的電源（標(biāo)準(zhǔn)）： 100mW @ 200kSPS
工作溫度： -40°C ~ 85°C
已用 IC / 零件： AD7608
已供物品： 板
Data Sheet
AD7608
Rev. A | Page 5 of 32
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
ANALOG INPUT
Input Voltage Ranges
RANGE = 1
±10
V
RANGE = 0
±5
V
Analog Input Current
5.4
A
2.5
A
Input Capacitance 7
5
pF
Input Impedance
1
MΩ
REFERENCE INPUT/OUTPUT
Reference Input Voltage Range
2.475
2.5
2.525
V
DC Leakage Current
±1
A
Input Capacitance7
REF SELECT = 1
7.5
pF
Reference Output Voltage
REFIN/REFOUT
2.49/
2.505
V
Reference Temperature Coefficient
±10
ppm/°C
LOGIC INPUTS
Input High Voltage (VINH)
0.9 × VDRIVE
V
Input Low Voltage (VINL)
0.1 × VDRIVE
V
Input Current (IIN)
±2
A
Input Capacitance (CIN)7
5
pF
LOGIC OUTPUTS
Output High Voltage (VOH)
ISOURCE = 100 A
VDRIVE 0.2
V
Output Low Voltage (VOL)
ISINK = 100 A
0.2
V
Floating-State Leakage Current
±1
±20
A
Floating-State Output Capacitance7
5
pF
Output Coding
Twos complement
CONVERSION RATE
Conversion Time
All eight channels included; see Table 3
4
s
Track-and-Hold Acquisition Time
1
s
Throughput Rate
Per channel, all eight channels included
200
kSPS
POWER REQUIREMENTS
AVCC
4.75
5.25
V
VDRIVE
2.3
5.25
V
ITOTAL
Digital inputs = 0 V or VDRIVE
Normal Mode (Static)
16
22
mA
Normal Mode (Operational)8
fSAMPLE = 200 kSPS
20
27
mA
Standby Mode
5
8
mA
Shutdown Mode
2
11
A
Power Dissipation
Normal Mode (Static)
80
115.5
mW
Normal Mode (Operational) 8
fSAMPLE = 200 kSPS
100
142
mW
Standby Mode
25
42
mW
Shutdown Mode
10
58
W
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 V. With ±10 V input range, 1 LSB = 76.29 V.
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.
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