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參數(shù)資料
| 型號： | TDA8785 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 8-bit high-speed analog-to-digital converter with gain and offset controls |
| 中文描述： | 8位高速模增益和偏移數(shù)字轉(zhuǎn)換器控制 |
| 文件頁數(shù)： | 8/24頁 |
| 文件大小： | 169K |
| 代理商： | TDA8785 |
1997 Dec 18
8
Philips Semiconductors
Product specification
8-bit high-speed analog-to-digital converter
with gain and offset controls
TDA8785
CHARACTERISTICS
V
CCA1
= V
CCA2
= V
CCD
= V
CCO
= 4.75 to 5.25 V; AGND, DGND and OGND short-circuited together;
V
CCA
to V
CCD
= V
CCD
to V
CCO
= V
CCA
to V
CCO
=
0.25 to +0.25 V; T
amb
= 0 to 70
°
C;
typical values measured at V
CCA
= V
CCD
= V
CCO
= 5 V and T
amb
= 25
°
C; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
Supplies
V
CCA1
V
CCA2
V
CCD
V
CCO
I
CCA
I
CCD
I
CCO
analog supply voltage 1
analog supply voltage 2
digital supply voltage
TTL output supply voltage
analog supply current
digital supply current
TTL output supply current
4.75
4.75
4.75
4.75
5.0
5.0
5.0
5.0
80
37
9
5.25
5.25
5.25
5.25
V
V
V
V
mA
mA
mA
Reference voltages (pins V
ref
and V
RB
)
V
o(ref)
V
line
I
o(L)
V
RB
output reference voltage
line regulation voltage
output load current
reference voltage output bottom
(decoupling)
offset voltage bottom
ADC reference voltage difference
2.60
0.5
2.75
4
V
CCA
2.5
2.90
+0.5
V
mV
mA
V
V
CCA
= 4.75 to 5.25 V
V
offset(B)
V
ADC
code 0
V
RB
between
code 0 and 255
250
1
mV
V
Analog inputs (pins V
i(p)
and V
i(n)
);
see Table 1
differential input voltage V
i(p)
V
i(n)
(peak-to-peak value)
V
i(diff)(p-p)
0 dB gain
20 dB gain
2.5
1000
100
3.0
7
20
1
3.5
mV
mV
V
μ
A
k
pF
V
I
I
i
Z
i
C
i
DC input voltage
input current
input impedance
input capacitance
Fast offset amplifier inputs (pins V
FOFF(p)
and V
FOFF(n)
); DC parameters
V
FOFF(p)
positive input voltage
0 dB gain
20 dB gain
0 dB gain
20 dB gain
V
CCA
0.75 V
CCA
0.25 V
CCA
4
20
1
500
50
500
50
mV
mV
mV
mV
V
μ
A
k
pF
V
FOFF(n)
negative input voltage
V
I
I
i
Z
i
C
i
DC input voltage
input current
input impedance
input capacitance
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| TDA8785H | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit high-speed analog-to-digital converter with gain and offset controls |
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| TDA8786G | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:10-bit analog-to-digital interface for CCD cameras |
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