D
G Q
D
G Q D G Q
D G
Q D G Q D G Q D G Q D G Q D G Q
D G Q D G
Q ANALOG INPUT 4
+REFERENCE 6DIGITAL GROUND 2
小寒吃什么ANALOG GROUND 7
RANGE MIDPOINT 5
R/2
R
R R
R
R/2
R/2
–REFERENCE 3
CS189 +5V SUPPLY 18+VDD
1 CLOCK INPUT CLOCK GENERATOR
白字组词
10 OVERFLOW
杏仁果11 BIT 1 (MSB)
12 BIT 2
13 BIT 3
14 BIT 4
15 BIT 5
16 BIT 6
17 BIT 7 (LSB)
128-TO-7 ENCODER
CS2
D G Q
D
G Q ∅1
∅2∅2∅1
ADC-207
7-Bit, 20MHz, CMOS Flash A/D Converters
DATEL, Inc., 11 Cabot Boulevard, Mansfield, MA 02048-1151 (U.S.A.) • Tel: (508) 339-3000 Fax: (508) 339-6356 • For immediate assistance (800) 233-2765
元器件交易网
ADC-207
ADC-207
ADC-207
ADC-207
0 1 2 3 4 5 6 7 8 9 10FREQUENCY (MHz)
706560555045
4035302520151050–5–10
A M P L I T U D E (d
B )
69.2
SAMPLE PULSE WIDTH = 25ns
4MHz FUNDAMENTAL
Figure 5. Beat Frequency Test at 20MHz
Figure 6. 10MHz Envelope Test
FFT T EST
This test actually produces an amplitude versus frequency graph (Figure 7) which indicates harmonic distortion and signal-to-noi
ratio. The theoretical rms signal-to-noi ration for a 7-bit converter is +43.8dB.
Figure 7. FFT Test Using the ADC-207
012345678910
706560555045403530252015100–5–10SAMPLE PULSE = 25ns 69.227.3
4MHz FUNDAMENTAL 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
NUMBER OF SAMPLES(X10 )
3OUTPUT CODES
1201101009080
706050403020100
OUTPUT
CODES
1201101009080
706050403020100
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1
1.2 1.3 1.4 1.5
NUMBER OF SAMPLES(X10 )
3
MECHANICAL DIMENSIONS INCHES (MM)
ORDERING INFORMA TION
MODEL TEMP. RANGE PACKAGE ADC-207MC 0 to +70°C 18-pin DIP ADC-207MM –55 to +125°C 18-pin DIP ADC-207MM-QL –55 to +125°C 18-pin DIP ADC-207LC 0 to +70°C 24-pin CLCC ADC-207LM –55 to +125°C 24-pin CLCC ADC-207LM-QL –55 to +125°C
24-pin CLCC
ACCESSORIES ADC-B207/208
Evaluation Board for DIP Version (without ADC-207)
0.400
(10.16 )
0.250 ±0.005(6.35 ±0.13)
0.050(1.270)TYP.
波浪卷中长发
0.020 ±0.005(0.51 ±0.13)1
png透明图片24
16
10
4
0.090 MAX.
(2.29 MAX.)
+0.010
–0.005
+0.25–0.130.400(10.16 )
+0.010
–0.005
+0.25–0.130.250 ±0.005(6.35 ±0.13)
PIN 1INDEX
小黑鱼绘本TOP VIEW
24-Pin Ceramic LCC
手工陶艺制作18-Pin Ceramic DIP
华为手机自动关机0.960 MAX.
(24.38 MAX.)
0.220 /0.310(5.59 / 7.87)
DATEL ADC-207MC
PIN 1
IDENTIFIER
1
18
10
9
0.200 MAX.(5.1 MAX.)
0.100 TYP.(2.540)
0.014 /0.023(0.35 /0.58) 0.015 /0.060(0.38 /1.52)
0.290 /0.320(7.36 /8.13)
SEATING PLANE 0.035 (0.889)
0.008 /0.015(0.20 /0.38)
