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参数资料
| 型号： | HI5746 |
| 厂商： | Intersil Corporation |
| 英文描述： | 10-Bit, 40 MSPS A/D Converter(10位、采样速率为40MSPS的A/D转换器) |
| 中文描述： | 10位，40 MSPS的的A / D转换器（10位，采样速率为40MSPS的的A / D转换器） |
| 文件页数： | 14/16页 |
| 文件大小： | 920K |
| 代理商： | HI5746 |
14
The output enable pin, OE, when pulled high will three-state
the digital outputs to a high impedance state. Set the OE
input to logic low for normal operation.
Supply and Ground Considerations
The HI5746 has separate analog and digital supply and
ground pins to keep digital noise out of the analog signal
path. The digital data outputs also have a separate supply
pin, DV
CC2
, which can be powered from a 3V or 5V supply.
This allows the outputs to interface with 3V logic if so
desired.
The part should be mounted on a board that provides
separate low impedance connections for the analog and
digital supplies and grounds. For best performance, the
supplies to the HI5746 should be driven by clean, linear
regulated supplies. The board should also have good high
frequency decoupling capacitors mounted as close as
possible to the converter. If the part is powered off a single
supply then the analog supply should be isolated with a
ferrite bead from the digital supply.
Refer to the application note “Using Intersil High Speed A/D
Converters” (AN9214) for additional considerations when
using high speed converters.
Static Performance Definitions
Offset Error (V
OS
)
The midscale code transition should occur at a level
1
/
4
LSB
above half-scale. Offset is defined as the deviation of the
actual code transition from this point.
Full-Scale Error (FSE)
The last code transition should occur for an analog input that
is
3
/
4
LSB below positive Full scale (+FS) with the offset
error removed. Fullscale error is defined as the deviation of
the actual code transition from this point.
Differential Linearity Error (DNL)
DNL is the worst case deviation of a code width from the
ideal value of 1 LSB.
Integral Linearity Error (INL)
INL is the worst case deviation of a code center from a best
fit straight line calculated from the measured data.
Power Supply Sensitivity
Each of the power supplies are moved plus and minus 5%
and the shift in the offset and full scale error (in LSBs) is
noted.
Dynamic Performance Definitions
Fast Fourier Transform (FFT) techniques are used to evaluate
the dynamic performance of the HI5746. A low distortion sine
wave is applied to the input, it is coherently sampled, and the
output is stored in RAM. The data is then transformed into the
frequency domain with an FFT and analyzed to evaluate the
dynamic performance of the A/D. The sine wave input to the
part is -0.5dB down from Fullscale for all these tests.
TABLE 1. A/D CODE TABLE
CODE CENTER
DESCRIPTION
DIFFERENTIAL
INPUT VOLTAGE
(V
IN
+ - V
IN
-)
OFFSET BINARY OUTPUT CODE
(DFS LOW)
TWO’S COMPLEMENT OUTPUT CODE
(DFS HIGH)
M
S
B
L
S
B
M
S
B
L
S
B
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
+Full Scale (+FS) -
1
/
4
LSB
+FS
-
1
1
/
4
LSB
+
3
/
4
LSB
-
1
/
4
LSB
-FS + 1
3
/
4
LSB
0.499756V
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
0.498779V
1
1
1
1
1
1
1
1
1
0
0
1
1
1
1
1
1
1
1
0
732.422
μ
V
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-244.141
μ
V
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
-0.498291V
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
1
-Full Scale (-FS) +
3
/
4
LSB
-0.499268V
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
NOTES:
8. The voltages listed above represent the ideal center of each output code shown as a function of the reference differential voltage,
(V
REF
+ - V
REF
-) = 0.5V.
9. V
REF
+ = 2.5V and V
REF
- = 2V.
OE INPUT
DIGITAL DATA OUTPUTS
0
Active
1
High Impedance
HI5746
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相关代理商/技术参数 |
参数描述 |
|---|---|
| HI5746_04 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:10-Bit, 40MSPS A/D Converter |
| HI5746EVAL1 | 功能描述:EVALUATION PLATFORM HI5746 RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 传感器类型:CMOS 成像，彩色（RGB） 传感范围:WVGA 接口:I²C 灵敏度:60 fps 电源电压:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相关产品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP |
| HI5746KCA | 功能描述:IC ADC 10-BIT 40MSPS 28-SSOP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 位数:12 采样率（每秒）:3M 数据接口:- 转换器数目:- 功率耗散（最大）:- 电压电源:- 工作温度:- 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-23-6 包装:带卷 (TR) 输入数目和类型:- |
| HI5746KCAZ | 功能描述:模数转换器 - ADC A/D 10-BIT 40MSPS 28 SSOP COM TEMP RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| HI5746KCB | 功能描述:CONV A/D 10BIT 40MSPS 28-SOIC RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 位数:12 采样率（每秒）:3M 数据接口:- 转换器数目:- 功率耗散（最大）:- 电压电源:- 工作温度:- 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-23-6 包装:带卷 (TR) 输入数目和类型:- |
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