參數(shù)資料
型號： TMS320F28044_07
廠商： Texas Instruments, Inc.
元件分類： 數(shù)字信號處理
英文描述： Digital Signal Processor
中文描述： 數(shù)字信號處理器
文件頁數(shù)： 97/107頁
文件大?。?/td> 784K
代理商： TMS320F28044_07
www.ti.com
6.11 On-Chip Analog-to-Digital Converter
TMS320F28044
Digital Signal Processor
SPRS357B–AUGUST 2006–REVISED MAY 2007
Table 6-30. ADC Electrical Characteristics (over recommended operating conditions)
(1)(2)
PARAMETER
DC SPECIFICATIONS
Resolution
ADC clock
MIN
TYP
MAX
UNIT
12
1
Bits
kHz
MHz
25
ACCURACY
INL (Integral nonlinearity)
DNL (Differential nonlinearity)
(3)
Offset error
(4)
Offset error with hardware trimming
Overall gain error with internal reference
(5)
Overall gain error with external reference
Channel-to-channel offset variation
Channel-to-channel gain variation
ANALOG INPUT
Analog input voltage (ADCINx to ADCLO)
(6)
ADCLO
Input capacitance
Input leakage current
INTERNAL VOltAGE REFERENCE
(5)
V
- ADCREFP output voltage at the pin based on
internal reference
V
- ADCREFM output voltage at the pin based on
internal reference
Voltage difference, ADCREFP - ADCREFM
Temperature coefficient
EXTERNAL VOltAGE REFERENCE
(5)(7)
1 - 25-MHz ADC clock (12.5 MSPS)
1 - 25-MHz ADC clock (12.5 MSPS)
±
2.0
±
1
60
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
-60
±
4
-60
-60
60
60
±
4
±
4
0
3
5
V
-5
0
mV
pF
μ
A
10
±
5
1.275
V
0.525
V
0.75
50
V
PPM/
°
C
ADCREFSEL[15:14] = 11b
ADCREFSEL[15:14] = 10b
ADCREFSEL[15:14] = 01b
1.024
1.500
2.048
V
V
V
V
ADCREFIN
- External reference voltage input on ADCREFIN
AC SPECIFICATIONS
SINAD (100 kHz) Signal-to-noise ratio + distortion
SNR (100 kHz) Signal-to-noise ratio
THD (100 kHz) Total harmonic distortion
ENOB (100 kHz) Effective number of bits
SFDR (100 kHz) Spurious free dynamic range
67.5
68
-79
10.9
83
dB
dB
dB
Bits
dB
(1)
(2)
(3)
(4)
(5)
Tested at 25-MHz ADCCLK.
All voltages listed in this table are with respect to V
.
TI specifies that the ADC will have no missing codes.
1 LSB has the weighted value of 3.0/4096 = 0.732 mV.
A single internal/external band gap reference sources both ADCREFP and ADCREFM signals, and hence, these voltages track
together. The ADC converter uses the difference between these two as its reference. The total gain error listed for the internal reference
is inclusive of the movement of the internal bandgap over temperature. Gain error over temperature for the external reference option will
depend on the temperature profile of the source used.
Voltages above V
+ 0.3 V or below V
- 0.3 V applied to an analog input pin may temporarily affect the conversion of another pin.
To avoid this, the analog inputs should be kept within these limits.
TI recommends using high precision external reference TI part REF3020/3120 or equivalent for 2.048-V reference.
(6)
(7)
Submit Documentation Feedback
Electrical Specifications
97
相關(guān)PDF資料
PDF描述
TMS320F28044ZGMA Digital Signal Processor
TMS320F28044ZGMQ Digital Signal Processor
TMS320F28044ZGMS Digital Signal Processor
TMX320F28044GGMQ Digital Signal Processor
TMX320F28044GGMS Digital Signal Processor
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TMS320F28044PZA 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 32-Bit DSC w/ 128KB Flash RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
TMS320F28044PZS 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 32-Bit DSC w/ 128KB Flash RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
TMS320F28045PZA 制造商:Texas Instruments 功能描述:- Trays
TMS320F28045PZS 制造商:Texas Instruments 功能描述:- Trays
TMS320F28050PNQ 制造商:Texas Instruments 功能描述:GIZMO
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*