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参数资料
| 型号： | AD7892AR-2REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 9/14页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT LP 500KSPS 24-SOIC |
| 标准包装： | 400 |
| 位数： | 12 |
| 采样率（每秒）： | 500k |
| 数据接口： | 串行，并联 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 90mW |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC W |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 2 个单端，双极 |
AD7892
–4–
REV. C
TIMING CHARACTERISTICS1, 2
A, B
S
Parameter
Versions
Version
Unit
Test Conditions/Comments
tCONV
1.47
s max
Conversion Time for AD7892-3
1.6
1.68
s max
Conversion Time for AD7892-1, AD7892-2
tACQ
200
ns min
Acquisition Time for AD7892-3
400
320
ns min
Acquisition Time for AD7892-1, AD7892-2
Parallel Interface
t1
35
45
ns min
CONVST Pulsewidth
t2
60
ns min
EOC Pulsewidth
t3
0
ns min
EOC Falling Edge to CS Falling Edge Setup Time
t4
0
ns min
CS to RD Setup Time
t5
35
45
ns min
Read Pulsewidth
t6
3
35
40
ns max
Data Access Time After Falling Edge of
RD
t7
4
5
ns min
Bus Relinquish Time After Rising Edge of
RD
30
40
ns max
t8
0
ns min
CS to RD Hold Time
t9
200
ns min
RD to CONVST Setup Time
Serial Interface
t10
30
35
ns min
RFS Low to SCLK Falling Edge Setup Time
t11
3
25
30
ns max
RFS Low to Data Valid Delay
t12
25
ns min
SCLK High Pulsewidth
t13
25
ns min
SCLK Low Pulsewidth
t14
3
5
ns min
SCLK Rising Edge to Data Valid Hold Time
t15
3
25
30
ns max
SCLK Rising Edge to Data Valid Delay
t16
20
30
ns min
RFS to SCLK Falling Edge Hold Time
t17
4
0
ns min
Bus Relinquish Time after Rising Edge of
RFS
30
ns max
t17A
4
0
ns min
Bus Relinquish Time after Rising Edge of SCLK
30
ns max
NOTES
1Sample tested at +25
°C to ensure compliance. All input signals are measured with tr = tf = 1 ns (10% to 90% of +5 V) and timed from a voltage level of +1.6 V.
2See Figures 2 and 3.
3Measured with the load circuit of Figure 1 and defined as the time required for an output to cross 0.8 V or 2.4 V.
4These times are derived from the measured time taken by the data outputs to change 0.5 V when loaded with the circuit of Figure 1. The measured number is then
extrapolated back to remove the effects of charging or discharging the 50 pF capacitor. This means that the times quoted in the timing characteristics are the true bus
relinquish times of the part and as such are independent of external bus loading capacitances.
5Assumes CMOS loads on the data bits. With TTL loads, more current is drawn from the data lines and the
RD to CONVST time needs to be extended to 400 ns min.
Specifications subject to change without notice.
1.6mA
+1.6V
200 A
50pF
TO
OUTPUT
PIN
Figure 1. Load Circuit for Access Time and Bus Relinquish Time
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD7892 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
(VDD = +5 V
5%, AGND = DGND = 0 V, REF IN = +2.5 V)
WARNING!
ESD SENSITIVE DEVICE
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7892AR-3 | 制造商:Analog Devices 功能描述:ADC Single SAR 600ksps 12-bit Parallel/Serial 24-Pin SOIC W 制造商:Rochester Electronics LLC 功能描述:12-BIT ADC I.C. - Bulk 制造商:Analog Devices 功能描述:IC 12-BIT ADC |
| AD7892AR-3REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 600ksps 12-bit Parallel/Serial 24-Pin SOIC W T/R |
| AD7892AR-3REEL7 | 制造商:Analog Devices 功能描述:ADC Single SAR 600ksps 12-bit Parallel/Serial 24-Pin SOIC W T/R 制造商:Rochester Electronics LLC 功能描述:12-BIT ADC I.C. - Tape and Reel |
| AD7892ARS-2 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| AD7892ARZ-1 | 功能描述:IC ADC 12BIT LP 500KSPS 24-SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 其它有关文件:TSA1204 View All Specifications 标准包装:1 系列:- 位数:12 采样率（每秒）:20M 数据接口:并联 转换器数目:2 功率耗散（最大）:155mW 电压电源:模拟和数字 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-TQFP 供应商设备封装:48-TQFP（7x7） 包装:Digi-Reel® 输入数目和类型:4 个单端，单极；2 个差分，单极 产品目录页面:1156 (CN2011-ZH PDF) 其它名称:497-5435-6 |
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