參數(shù)資料
型號(hào)： TDA8764TS
廠商： NXP Semiconductors N.V.
英文描述： 10-bit high-speed low-power ADC with internal reference regulator
中文描述： 10位高速低的內(nèi)部參考調(diào)節(jié)功率ADC
文件頁(yè)數(shù)： 13/28頁(yè)
文件大?。?/td> 184K
代理商： TDA8764TS
1999 Jan 12
13
Philips Semiconductors
Preliminary specification
10-bit high-speed low-power ADC with
internal reference regulator
TDA8764
Notes
1.
In addition to a good layout of the digital and analog ground, it is recommended that the rise and fall times of the clock
must not be less than 0.5 ns.
2.
The input admittance is
3.
Analog input voltages producing code 0 up to and including code 1023:
a) V
offset(B)
(offset voltage BOTTOM) is the difference between the analog input which produces data equal to 00
and the reference voltage BOTTOM (V
RB
) at T
amb
= 25
°
C.
b) V
offset(T)
(offset voltage TOP) is the difference between reference voltage TOP (V
RT
) and the analog input which
produces data outputs equal to code 1023 at T
amb
= 25
°
C.
In order to ensure the optimum linearity performance of such converter architecture the lower and upper extremities
of the converter reference resistor ladder (corresponding to output codes 0 and 1023 respectively) are connected to
pins V
RB
and V
RT
via offset resistors R
OB
and R
OT
as shown in Fig.4.
4.
a) The current flowing into the resistor ladder is
and the full-scale input range at the converter,
to cover code 0 to code 1023, is
b) Since R
L
, R
OB
and R
OT
have similar behaviour with respect to process and temperature variation, the ratio
R
R
OB
R
L
R
OT
+
+
will be kept reasonably constant from device to device. Consequently variation of the output
codes at a given input voltage depends mainly on the difference V
RT
V
RB
and its variation with temperature and
supply voltage. When several ADCs are connected in parallel and fed with the same reference source, the
matching between each of them is then optimized.
5.
6.
The analog bandwidth is defined as the maximum input sine wave frequency which can be applied to the device.
No glitches greater than 2 LSBs, nor any significant attenuation are observed in the reconstructed signal.
The analog input settling time is the minimum time required for the input signal to be stabilized after a sharp full-scale
input (square wave signal) in order to sample the signal and obtain correct output data.
Effective bits are obtained via a Fast Fourier Transform (FFT) treatment taking 8 K acquisition points per equivalent
fundamental period. The calculation takes into account all harmonics and noise up to half of the clock frequency
(NYQUIST frequency). Conversion to signal-to-noise ratio: SINAD = EB
×
6.02 + 1.76 dB.
Intermodulation measured relative to either tone with analog input frequencies of 5 and 5.1 MHz. The two input
signals have the same amplitude and the total amplitude of both signals provides full-scale to the converter.
10. Output data acquisition: the output data is available after the maximum delay time of t
d(max)
. For the 80 MHz version
it is recommended to have the lowest possible output load.
7.
8.
9.
V
i
1
R
i
----
Cijw
+
=
I
L
V
V
+
R
OB
R
L
R
R
L
R
OT
+
-----------------------------------------
=
V
I
R
L
I
L
×
R
OB
R
OT
+
+
-----------------------------------------
V
RT
V
RB
–
(
)
0.866
V
RT
V
RB
–
(
)
×
=
×
=
=
-----------------------------------------
E
G
V
--------------------V
V
–
i p
(
)
V
i p
p
–
)
–
p
–
)
100
×
=
相關(guān)PDF資料
PDF描述
TDA8765 10-bit high-speed Analog-to-Digital Converter ADC
TDA8765H 10-bit high-speed Analog-to-Digital Converter ADC
TDA8766 10-bit high-speed 2.7 to 5.25 V analog-to-digital converter
TDA8766G 10-bit high-speed 2.7 to 5.25 V analog-to-digital converter
TDA8767 12-bit high-speed Analog-to-Digital Converter ADC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA8764TS/4 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:10-bit high-speed low-power ADC with internal reference regulator
TDA8764TS/8 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:10-bit high-speed low-power ADC with internal reference regulator
TDA8765 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:10-bit high-speed Analog-to-Digital Converter ADC
TDA8765H 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:10-bit high-speed Analog-to-Digital Converter ADC
TDA8765H/4 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:10-bit high-speed Analog-to-Digital Converter ADC
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*