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PDF ADC08100 Data sheet ( Hoja de datos )
| Número de pieza | ADC08100 | |
| Descripción | 8-Bit/ 20 MSPS to 100 MSPS/ 1.3 mW/MSPS A/D Converter | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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December 2002
ADC08100
8-Bit, 20 MSPS to 100 MSPS, 1.3 mW/MSPS A/D
Converter
General Description
The ADC08100 is a low-power, 8-bit, monolithic analog-to-
digital converter with an on-chip track-and-hold circuit. Opti-
mized for low cost, low power, small size and ease of use,
this product operates at conversion rates of 20 MSPS to
100 MSPS with outstanding dynamic performance over its
full operating range while consuming just 1.3 mW per MHz of
clock frequency. That’s just 130 mW of power at 100 MSPS.
Raising the PD pin puts the ADC08100 into a Power Down
mode where it consumes just 1 mW.
The unique architecture achieves 7.4 Effective Bits with
41 MHz input frequency. The excellent DC and AC charac-
teristics of this device, together with its low power consump-
tion and single +3V supply operation, make it ideally suited
for many imaging and communications applications, includ-
ing use in portable equipment. Furthermore, the ADC08100
is resistant to latch-up and the outputs are short-circuit proof.
The top and bottom of the ADC08100’s reference ladder are
available for connections, enabling a wide range of input
possibilities. The digital outputs are TTL/CMOS compatible
with a separate output power supply pin to support interfac-
ing with 3V or 2.5V logic. The digital inputs (CLK and PD) are
TTL/CMOS compatible.
The ADC08100 is offered in a 24-lead plastic package
(TSSOP) and is specified over the industrial temperature
range of −40˚C to +85˚C.
Features
n Single-ended input
n Internal sample-and-hold function
n Low voltage (single +3V) operation
n Small package
n Power-down feature
Key Specifications
n Resolution
8 bits
n Maximum sampling frequency
100 MSPS (min)
n DNL
0.4 LSB (typ)
n ENOB
7.4 bits (typ) at fIN = 41 MHz
n THD
−60 dB (typ)
n Guaranteed no missing codes
n Power consumption
— Operating:
1.3 mW/MSPS (typ)
— Power down:
1 mW (typ)
Applications
n Flat panel displays
n Projection systems
n Set-top boxes
n Battery-powered instruments
n Communications
n Medical scan converters
n X-ray imaging
n High speed viterbi decoders
n Astronomy
Pin Configuration
© 2002 National Semiconductor Corporation DS101371
10137101
www.national.com
1 page  
Converter Electrical Characteristics (Continued)
The following specifications apply for VA = DR VD = +3.0VDC, VRT = +1.9V, VRB = 0.3V, CL = 10 pF, fCLK = 100 MHz at 50%
duty cycle. Boldface limits apply for TA = TMIN to TMAX: all other limits TA = 25˚C (Notes 7, 8)
Symbol
Parameter
Conditions
Typical
(Note 9)
Limits
(Note 9)
Units
(Limits)
CLK, PD DIGITAL INPUT CHARACTERISTICS
IIL Logical Low Input Current
CIN Logic Input Capacitance
DIGITAL OUTPUT CHARACTERISTICS
VIL = 0V, DR VD = VA = 2.7V
−50
3
nA
pF
VOH High Level Output Voltage
VOL Low Level Output Voltage
DYNAMIC PERFORMANCE
VA = DR VD = 2.7V, IOH = −400 µA
VA = DR VD = 2.7V, IOL = 1.0 mA
2.6
0.4
2.4 V (min)
0.5 V (max)
ENOB Effective Number of Bits
SINAD Signal-to-Noise & Distortion
SNR
Signal-to-Noise Ratio
SFDR Spurious Free Dynamic Range
THD
Total Harmonic Distortion
HD2
2nd Harmonic Distortion
HD3
3rd Harmonic Distortion
IMD Intermodulation Distortion
POWER SUPPLY CHARACTERISTICS
fIN = 4 MHz, VIN = FS − 0.25 dB
fIN = 10 MHz, VIN = FS − 0.25 dB
fIN = 41 MHz, VIN = FS − 0.25 dB,
TA= 25˚C
fIN = 41 MHz, VIN = FS − 0.25 dB, TA
= TMIN to TMAX
fIN = 49.8 MHz, VIN = FS − 0.25 dB
fIN = 4 MHz, VIN = FS − 0.25 dB
fIN = 10 MHz, VIN = FS − 0.25 dB
fIN = 41 MHz, VIN = FS − 0.25 dB,
TA= 25˚C
fIN = 41 MHz, VIN = FS − 0.25 dB, TA
= TMIN to TMAX
fIN = 49.8 MHz, VIN = FS − 0.25 dB
fIN = 4 MHz, VIN = FS − 0.25 dB
fIN = 10 MHz, VIN = FS − 0.25 dB
fIN = 41 MHz, VIN = FS − 0.25 dB
fIN = 49.8 MHz, VIN = FS − 0.25 dB
fIN = 4 MHz, VIN = FS − 0.25 dB
fIN = 10 MHz, VIN = FS − 0.25 dB
fIN = 41 MHz, VIN = FS − 0.25 dB
fIN = 49.8 MHz, VIN = FS − 0.25 dB
fIN = 4 MHz, VIN = FS − 0.25 dB
fIN = 10 MHz, VIN = FS − 0.25 dB
fIN = 41 MHz, VIN = FS − 0.25 dB
fIN = 49.8 MHz, VIN = FS − 0.25 dB
fIN = 4 MHz, VIN = FS − 0.25 dB
fIN = 10 MHz, VIN = FS − 0.25 dB
fIN = 41 MHz, VIN = FS − 0.25 dB
fIN = 49.8 MHz, VIN = FS − 0.25 dB
fIN = 4 MHz, VIN = FS − 0.25 dB
fIN = 10 MHz, VIN = FS − 0.25 dB
fIN = 41 MHz, VIN = FS − 0.25 dB
fIN = 49.8 MHz, VIN = FS − 0.25 dB
f1 = 9 MHz, VIN = FS − 6.25 dB
f2 = 10 MHz, VIN = FS − 6.25 dB
7.5
7.5
7.3
7.3
7.2
47
47
46
46
45
47
47
46.5
45.8
61
60
63
54
−61
−60
-60
−54
-62
−60
-63
−54
−68
−65
-64
−68
-48
Bits
7.0 Bits (min)
6.9 Bits (min)
6.8 Bits (min)
Bits
dB
43.9 dB (min)
43.3 dB (min)
42.7 dB (min)
dB
dB
44 dB (min)
42.8 dB (min)
dB
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
IA Analog Supply Current
DC Input
fIN = 10 MHz, VIN = FS − 3 dB
41 50 mA (max)
41 mA (max)
5 www.national.com
5 Page 
Typical Performance Characteristics VA = DR VD = 3V, fCLK = 100 MHz, fIN = 41 MHz, unless
otherwise stated (Continued)
SINAD/ENOB vs Clock Duty Cycle
Power Consumption vs Sample Rate
10137140
Spectral Response @ fIN = 10 MHz
10137119
Spectral Response @ fIN = 41 MHz
10137144
Spectral Response @ fIN = 76 MHz
10137145
Intermodulation Distortion (IMD)
10137142
11
10137143
www.national.com
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet ADC08100.PDF ] | |
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