参数资料
型号: AD7264BSTZ-5-RL7
厂商: Analog Devices Inc
文件页数: 25/29页
文件大小: 0K
描述: IC ADC 14BIT 2CH 500KSPS 48LQFP
标准包装: 500
位数: 14
采样率(每秒): 500k
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 2
功率耗散(最大): 175mW
电压电源: 单电源
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 48-LQFP
供应商设备封装: 48-LQFP(7x7)
包装: 带卷 (TR)
输入数目和类型: *
AD7264
Data Sheet
Rev. B | Page 4 of 28
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
LOGIC INPUTS
Input High Voltage, V
INH
0.7 × V
DRIVE
V
Input Low Voltage, V
INL
0.8
V
Input Current, I
IN
±1
A
V
IN = 0 V or VDRIVE
Input Capacitance, C
4
pF
LOGIC OUTPUTS
Output High Voltage, V
OH
V
DRIVE 0.2
V
Output Low Voltage, V
OL
0.4
V
Floating State Leakage Current
±1
A
Floating State Output Capacitance3
5
pF
Output Coding
Twos complement
CONVERSION RATE
Conversion Time
19 × t
SCLK
ns
Track-and-Hold Acquisition Time2
400
ns
Throughput Rate
1
MSPS
AD7264
500
kSPS
AD7264-5
COMPARATORS
Input Offset
Comparator A and Comparator B
±2
±4
mV
T
A = 25°C to 105°C only
Comparator C and Comparator D
±2
±4
mV
Offset Voltage Drift
0.5
μV/°C
All comparators
Input Common-Mode Range3
0 to 4
V
C
A_CBVCC = 5 V
0 to 1.7
V
C
A_CBVCC = 2.7 V
Input Capacitance3
4
pF
Input Impedance3
1
I
DD Normal Mode (Static)
25 pF load, C
OUTx = 0 V, VCM = AVCC/2,
V
OVERDRIVE = 200 mV differential
Comparator A and Comparator B
3
A
C
A_CBVCC = 3.3 V
6
8.5
A
C
A_CBVCC = 5.25 V
Comparator C and Comparator D
60
A
C
C_CDVCC = 3.3 V
120
170
A
C
C_CDVCC = 5.25 V
Propagation Delay Time2
V
CM = AVCC/2, VOVERDRIVE = 200 mV
differential
High to Low, t
PHL
Comparator A and Comparator B
1.4
3.5
s
C
A_CBVCC = 2.7 V
0.95
s
C
A_CBVCC = 5 V
Comparator C and Comparator D
0.20
0.32
s
C
C_CDVCC = 2.7 V
0.13
s
C
C_CDVCC = 5 V
Low to High, t
PLH
Comparator A and Comparator B
2
4
s
C
A_CBVCC = 2.7 V
0.93
s
C
A_CBVCC = 5 V
Comparator C and Comparator D
0.18
0.28
s
C
C_CDVCC = 2.7 V
0.12
s
C
C_CDVCC = 5 V
Delay Matching
V
CM = AVCC/2, VOVERDRIVE = 200 mV
differential
Comparator A and Comparator B
±250
ns
Comparator C and Comparator D
±10
ns
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