參數(shù)資料
型號: AD7864BSZ-1REEL
廠商: Analog Devices Inc
文件頁數(shù): 23/28頁
文件大?。?/td> 0K
描述: IC ADC 12BIT DUAL 4CHAN 44-MQFP
標(biāo)準(zhǔn)包裝: 800
位數(shù): 12
采樣率(每秒): 520k
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 120mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 44-QFP
供應(yīng)商設(shè)備封裝: 44-MQFP(10x10)
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 4 個差分,雙極
AD7864
Rev. D | Page 4 of 28
Parameter
A Version1
B Version
Unit
Test Conditions/Comments
AD7864-2
Input Voltage Range
0 to 2.5, 0 to 5
V
Input Current (0 V to 2.5 V Option)
±100
nA max
Input Resistance (0 V to 5 V Option)
9
kΩ min
REFERENCE INPUT/OUTPUT
VREF In Input Voltage Range
2.375/2.625
VMIN/VMAX
2.5 V ± 5%
VREF In Input Capacitance4
10
pF max
VREF Out Output Voltage
2.5
V nom
VREF Out Error @ 25°C
±10
mV max
VREF Out Error TMIN to TMAX
±20
mV max
VREF Out Temperature Coefficient
25
ppm/°C typ
VREF Out Output Impedance
6
kΩ typ
See the Reference section
LOGIC INPUTS
Input High Voltage, VINH
2.4
V min
VDD = 5 V ± 5%
Input Low Voltage, VINL
0.8
V max
VDD = 5 V ± 5%
Input Current, IIN
±10
μA max
Input Capacitance, CIN4
10
pF max
LOGIC OUTPUTS
Output High Voltage, VOH
4.0
V min
ISOURCE = 400 μA
Output Low Voltage, VOL
0.4
V max
ISINK = 1.6 mA
DB11 to DB0
High Impedance
Leakage Current
±10
μA max
Capacitance4
10
pF max
Output Coding
AD7864-1, AD7864-3
Twos complement
AD7864-2
Straight (natural) binary
CONVERSION RATE
Conversion Time
1.65
μs max
For one channel
Track-And-Hold Acquisition Time2, 3
0.35
μs max
Throughput Time
130
kSPS max
For all four channels
POWER REQUIREMENTS
VDD
5
V nom
±5% for specified performance
IDD
5 μA typical, logic inputs = 0 V or VDD
Normal Mode
24
mA max
Standby Mode
20
μA max
Typically 4 μA
Power Dissipation
Normal Mode
120
mW max
Typically 90 mW
Standby Mode
100
μW max
Typically 20 μW
1 Temperature ranges are as follows: A, B versions: –40°C to +85°C. The A version is fully specified up to 105°C with a maximum sample rate of 450 kSPS and IDD
maximum (normal mode) of 26 mA.
2 Performance is measured through the full channel (SHA and ADC).
3 See the Terminology section.
4 Sample tested at initial release to ensure compliance.
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