参数资料
型号: AD7328BRUZ-REEL
厂商: Analog Devices Inc
文件页数: 34/37页
文件大小: 0K
描述: IC ADC 12BIT+SAR 8CHAN 20-TSSOP
设计资源: Using AD7328 in Appls with Single-Ended Industrial-Level Signals (CN0047)
标准包装: 2,500
系列: iCMOS®
位数: 12
采样率(每秒): 1M
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
功率耗散(最大): 30mW
电压电源: 双 ±
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 20-TSSOP
包装: 带卷 (TR)
输入数目和类型: 8 个单端,单极;8 个单端,双极;4 个差分,单极;4 个差分,双极
Data Sheet
AD7328
Rev. C | Page 5 of 36
B Version
Parameter1
Min
Typ
Max
Unit
Test Conditions/Comments
LOGIC INPUTS
Input High Voltage, VINH
2.4
V
Input Low Voltage, VINL
0.8
V
VCC = 4.75 V to 5.25 V
0.4
V
VCC = 2.7 to 3.6 V
Input Current, IIN
±1
A
VIN = 0 V or VDRIVE
Input Capacitance, CIN3
10
pF
LOGIC OUTPUTS
Output High Voltage, VOH
VDRIVE 0.2
V
ISOURCE = 200 A
Output Low Voltage, VOL
0.4
V
ISINK = 200 A
Floating-State Leakage Current
±1
A
Floating-State Output Capacitance3
5
pF
Output Coding
Straight natural binary
Coding bit set to 1 in control register
Twos complement
Coding bit set to 0 in control register
CONVERSION RATE
Conversion Time
800
ns
16 SCLK cycles with SCLK = 20 MHz
Track-and-Hold Acquisition Time2,3
305
ns
Full-scale step input; see the Terminology section
Throughput Rate
1
MSPS
VCC = 4.75 V to 5.25 V; see the Serial Interface section
770
kSPS
VCC < 4.75 V
POWER REQUIREMENTS
Digital inputs = 0 V or VDRIVE
VDD
12
16.5
V
See Table 6
VSS
12
16.5
V
See Table 6
VCC
2.7
5.25
V
See Table 6; typical specifications for VCC < 4.75 V
VDRIVE
2.7
5.25
V
Normal Mode (Static)
0.9
mA
VDD/VSS = ±16.5 V, VCC/VDRIVE = 5.25 V
Normal Mode (Operational)
fS = 1 MSPS
IDD
360
A
VDD = 16.5 V
ISS
410
A
VSS = 16.5 V
ICC and IDRIVE
3.4
mA
VCC/VDRIVE = 5.25 V
Autostandby Mode (Dynamic)
fS = 250 kSPS
IDD
200
A
VDD = 16.5 V
ISS
210
A
VSS = 16.5 V
ICC and IDRIVE
1.3
mA
VCC/VDRIVE = 5.25 V
Autoshutdown Mode (Static)
SCLK on or off
IDD
1
A
VDD = 16.5 V
ISS
1
A
VSS = 16.5 V
ICC and IDRIVE
1
A
VCC/VDRIVE = 5.25 V
Full Shutdown Mode
SCLK on or off
IDD
1
A
VDD = 16.5 V
ISS
1
A
VSS = 16.5 V
ICC and IDRIVE
1
A
VCC/VDRIVE = 5.25 V
POWER DISSIPATION
Normal Mode
31
mW
VDD = 16.5 V, VSS = 16.5 V, VCC = 5.25 V
21
mW
VDD = 12 V, VSS = 12 V, VCC = 5 V
Full Shutdown Mode
38.25
W
VDD = 16.5 V, VSS = 16.5 V, VCC = 5.25 V
1
Temperature range is 40°C to +85°C.
2
See the Terminology section.
3
Sample tested during initial release to ensure compliance.
4
For dc accuracy specifications, the LSB size for differential mode is FSR/8192. For single-ended mode/pseudo differential mode, the LSB size is FSR/4096, unless otherwise noted.
5
Unipolar 0 V to 10 V range with straight binary output coding.
6
Bipolar range with twos complement output coding.
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