參數(shù)資料
型號(hào)： ADS6243IRGZT
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： ADC
英文描述： 2-CH 14-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, PQCC48
封裝： 7 X 7 MM, GREEN, PLASTIC, QFN-48
文件頁(yè)數(shù)： 58/76頁(yè)
文件大?。?/td> 3497K
代理商： ADS6243IRGZT
www.ti.com
OUTPUT TIMINGS AT LOWER SAMPLING FREQUENCIES
SLAS542A – MAY 2007 – REVISED JULY 2007
Setup, hold and other timing parameters are specified across sampling frequencies and for each type of output
interface in the tables below.
Table 29 to Table 32: Typical values are at 25
°C, min and max values are across the full temperature range T
MIN
= –40
°C to T
MAX = 85°C, AVDD = LVDD = 3.3 V, CL = 5 pF, IO = 3.5 mA, RL = 100 , no internal termination,
unless otherwise noted.
Timing parameters are ensured by design and characterization and not tested in production.
Ts = 1/ Sampling frequency = 1/Fs
Table 28. Clock Propagation Delay for different interface options
CLOCK PROPAGATION DELAY,
SERIALIZER LATENCY (1)
INTERFACE
SERIALIZATION
tpd_clk
clock cycles
14x
tpd_clk = 0.428xTs + tdelay
1-wire with DDR bit clock
0
16x
tpd_clk = 0.375xTs + tdelay
2
(when tpd_clk ≥ Ts)
2-wire with DDR bit clock
tpd_clk = 0.857xTs + tdelay
14x
1
(when tpd_clk < Ts)
2-wire with SDR bit clock
tpd_clk = 0.428xTs + tdelay
0
1
(when tpd_clk ≥ Ts)
2-wire with DDR bit clock
tpd_clk = 0.75xTs + tdelay
16x
0
(when tpd_clk < Ts)
2-wire with SDR bit clock
tpd_clk = 0.375xTs + tdelay
0
(1)
Note that the total latency = ADC latency + internal serializer latency. The ADC latency is 12 clock cycles.
Table 29. Timings for 1-Wire Interface
DATA SETUP TIME, tsu
DATA HOLD TIME, th
tdelay
SAMPLING
ns
SERIALIZATION
FREQUENCY
MSPS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
65
0.3
0.5
0.4
0.6
Fs ≥ 40 MSPS
40
0.65
0.85
0.7
0.9
3
4
5
14
×
20
1.3
1.65
1.6
1.9
Fs < 40 MSPS
10
3.2
3.5
3.2
3.6
3
4.5
6
Fs ≥ 40 MSPS
3
4
5
16
×
65
0.22
0.42
0.35
0.55
Fs < 40 MSPS
3
4.5
6
Copyright 2007, Texas Instruments Incorporated
61
Product Folder Link(s): ADS6245 ADS6244 ADS6243 ADS6242
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ADS6244 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:DUAL CHANNEL, 14-BIT, 125/105/80/65 MSPS ADC WITH SERIAL LVDS OUTPUTS
ADS6244EVM 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開(kāi)發(fā)工具 ADS6244 Evaluation Module RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類(lèi)型:ADC 工具用于評(píng)估:ADS130E08 接口類(lèi)型:SPI 工作電源電壓:- 6 V to + 6 V
ADS6244IRGZ25 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Dual 14B 105MSPS ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS6244IRGZR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Dual 14B 105MSPS RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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