參數資料
型號: ADS62P45IRGCR
廠商: Texas Instruments
文件頁數: 59/78頁
文件大?。?/td> 0K
描述: IC ADC 14BIT SER/PAR 125M 64VQFN
產品培訓模塊: Data Converter Basics
標準包裝: 2,000
位數: 14
采樣率(每秒): 125M
數據接口: 串行,并聯
轉換器數目: 2
電壓電源: 模擬和數字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 64-VFQFN 裸露焊盤
供應商設備封裝: 64-VQFN 裸露焊盤(9x9)
包裝: 帶卷 (TR)
輸入數目和類型: 2 個差分,單極
t Time s
8120
8140
8160
8180
8200
8220
8240
8260
0
2
4
6
8
10
12
14
Code
LSB
G084
Device With
Offset Cancelled
Device With
Initial Offset
Offset Loop
Enabled Here
SLAS561C
– JULY 2007 – REVISED FEBRUARY 2012
It is also possible to freeze the offset correction using the serial interface (
<OFFSET LOOP FREEZE>). Once
frozen, the offset estimation becomes inactive and the last estimated value is used for correction every clock
cycle. Note that the offset correction is disabled by default after reset.
Figure 101 shows the time response of the offset correction algorithm, after it is enabled.
Figure 101. Time Response of Offset Correction
Gain Correction
ADS62P4X has ability to make fine corrections to the ADC channel gain. The corrections can be done in steps of
0.05 dB, up to a maximum of 0.5 dB, using the register bits ( GAIN CORRECTION). Only positive corrections are
supported and the same correction applies to both the channels.
Table 23. Gain Correction Values
<GAIN CORRECTION>
AMOUNT OF CORRECTION,
D3-D2-D1-D0
dB
0000
0
0001
+0.05
0010
+0.1
0011
+0.15
0100
+0.20
0101
+0.25
0110
+0.30
0111
+0.35
1000
+0.40
1001
+0.45
1010
+0.5
Other combinations
Unused
62
Copyright
2007–2012, Texas Instruments Incorporated
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ADS62P45IRGCRG4 功能描述:模數轉換器 - ADC DUAL 14B 125MSPS Para ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS62P45IRGCT 功能描述:模數轉換器 - ADC Dual 14B 125MSPS ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS62P45IRGCTG4 功能描述:模數轉換器 - ADC DUAL 14B 125MSPS Para ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS62P45RGC 制造商:TI 制造商全稱:Texas Instruments 功能描述:Dual Channel 14-Bit, 125/105/80/65 MSPS ADC with Parallel CMOS/DDR LVDS outputs
ADS62P48 制造商:TI 制造商全稱:Texas Instruments 功能描述:Dual Channel 14-/12-Bit, 250-/210-MSPS ADC With DDR LVDS and Parallel CMOS Outputs