参数资料
| 型号： | SMP04ESZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 14/15页 |
| 文件大小： | 0K |
| 描述： | IC AMP SAMPLE HOLD CMOS 16SOIC |
| 标准包装： | 48 |
| 放大器类型： | 采样和保持 |
| 电路数： | 4 |
| 转换速率： | 4 V/µs |
| 电流 - 输入偏压： | 500nA |
| 电压 - 输入偏移： | 2500µV |
| 电流 - 电源： | 4mA |
| 电流 - 输出 / 通道： | 1.2mA |
| 电压 - 电源，单路/双路(±)： | 5 V ~ 12 V，±2.5 V ~ 6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 管件 |
| 产品目录页面： | 768 (CN2011-ZH PDF) |
–8–
SMP04
REV. D
Optimizing Dynamic Performance of the SMP04
Various operating parameters such as input voltage amplitude,
sampling pulsewidth and, as mentioned before, supply bypass-
ing and grounding all have an effect on the signal-to-noise ratio.
Table I shows the SNR versus input level for the SMP04.
Distortion of the SMP04 is reduced by increasing the supply
voltage. This has the effect of increasing the positive slew rate.
Table II shows data taken at 12.3 kHz sample rate and 2 kHz
input frequency. Total harmonic distortion is dominated by the
second and third harmonics.
FREQUENCY DOMAIN PERFORMANCE
The SMP04 has been characterized in the frequency domain for
those applications that require capture of dynamic signals. See
Figure 16a for typical 86.1 kHz sample rate and an 8 kHz input
signal. Typically, the SMP04 can sample at rates up to 85 kHz.
In addition to the maximum sample rate, a minimum sample
pulsewidth will also be acceptable for a given design. Our testing
shows a drop in performance as the sample pulsewidth becomes
less than 4
s.
10 dB/DIV
RANGE 15.0 dBm
6.0 dBm
START 1 000.0 Hz
STOP 100 000.0 Hz
a.
10 dB/DIV
RANGE 15.0 dBm
6.3 dBm
START 1 000.0 Hz
STOP 100 000.0 Hz
b.
Figure 16. Spectral Response at a Sampling Frequency of
86 kHz. Photo (a) Shows a 20 kHz Carrier Frequency and
Photo (b) Shows an 8 kHz Frequency.
Table III shows the effect of sampling pulsewidth on the SNR of
the SMP04. The recommended operating pulsewidth should be
a minimum of 5
s to achieve a good balance between acqui-
sition time and SNR for the 1.4 V p-p signal shown. For larger
swings the pulsewidth will need to be larger to account for
the time required for the signal to slew the additional voltage.
This could be used as a method of measuring acquisition
time indirectly.
Table I. SNR vs. VIN
Input
Voltage
SNR
(V p-p)
(dB)
1
–61
2
–53
3
–50
4
–47
5
–45
6
–44
Conditions: VS = ± 6 V, fS = 14.4 kHz,
fIN = 1.8 kHz, tPW = 10 s.
Table II. SNR vs. Supply Voltage
Supply
Voltage
2nd
3rd
(V)
(dB)
10
–49
–62
12
–55
–71
14
–60
–80
15
–62
<–80
16
–63
<–83
17
–65
<–85
Table III. SNR vs. Sample Pulsewidth
Sample
Pulsewidth
SNR
( s)
(dB)
1
–37
2
–44
3
–50
4
–54
5
–54.9
6
–55
7
–55.3
Conditions: VS = ± 6 V, VIN = 1.4 V p-p,
fS = 14.4 kHz, fIN = 1.8 kHz.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SMP04ESZ | 制造商:Analog Devices 功能描述:Sample & Hold Amplifier |
| SMP04ESZ-REEL | 功能描述:IC AMP SAMPLE HOLD CMOS 16SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:150 系列:- 放大器类型:音频 电路数:2 输出类型:- 转换速率:5 V/µs 增益带宽积:12MHz -3db带宽:- 电流 - 输入偏压:100nA 电压 - 输入偏移:500µV 电流 - 电源:6mA 电流 - 输出 / 通道:50mA 电压 - 电源，单路/双路(±):4 V ~ 32 V，±2 V ~ 16 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:8-TSSOP 包装:管件 |
| SMP04GBC | 制造商:AD 制造商全称:Analog Devices 功能描述:CMOS Quad Sample-and-Hold Amplifier |
| SMP-04V-BC | 制造商:JST Manufacturing 功能描述:4 1 Housing vO 10.5mm 250VDC / 250VAC 3A 85 -25 22-28AWG 11.7mm 7.4mm 制造商:JST Manufacturing 功能描述:4 Position 2.5 mm Pitch Disconnectable Housing Plug 制造商:JST 功能描述:Connector 制造商:JST Manufacturing 功能描述:Connector,Plastic Hsng Lance,Multipole |
| SMP-04V-NC | 制造商:JST Manufacturing 功能描述:Conn Housing PL 4 POS Crimp ST Bag 制造商:JST Manufacturing 功能描述:CONNECTOR HOUSING PLUG 4 WAY PLASTIC 制造商:JST Manufacturing 功能描述:CONNECTOR HOUSING, PLUG, 4 WAY, PLASTIC 制造商:JST Manufacturing 功能描述:2.5mm Wire to Wire connector, Natural colour Plug Housing 制造商:JST Manufacturing 功能描述:Connector 制造商:JST Manufacturing 功能描述:CONNECTOR, HOUSING, PLUG, 4POS, 1ROW, Product Range:JST - SM Series, Contact Termination:-, Gender:Plug, No. of Contacts:4, No. of Rows:1, Pitch Spacing:2.5mm, Contact Plating:-, Contact Material:-, Connector Type:Wire to Board , RoHS Compliant: Yes 制造商:JST Manufacturing 功能描述:CONNECTOR HOUSING, PLUG, 4 WAY, PLASTIC, Series:SM, No. of Positions:4, Pitch Sp |
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