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ADCS7478 数据表(PDF) 5 Page - Texas Instruments

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部件名 ADCS7478
功能描述  ADCS7478 1MSPS, 12-/10-/8-Bit A/D Converters in SOT-23 & WSON
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

ADCS7478 数据表(HTML) 5 Page - Texas Instruments

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ADCS7476, ADCS7477, ADCS7478
www.ti.com
SNAS192F – APRIL 2003 – REVISED MARCH 2013
ADCS7476/ADCS7477/ADCS7478 Specifications
(1) ADCS7477 Converter Electrical
Characteristics (continued)
The following specifications apply for VDD = +2.7V to 5.25V, fSCLK = 20 MHz, fSAMPLE = 1 MSPS unless otherwise noted.
Boldface limits apply for TA = −40°C to +85°C: all other limits TA = 25°C, unless otherwise noted.
Symbol
Parameter
Conditions
Typical
Limits
Units
Resolution with No Missing Codes
10
Bits
INL
Integral Non-Linearity
±0.2
±0.7
LSB (max)
+0.3
LSB (max)
DNL
Differential Non-Linearity
±0.7
-0.2
LSB (min)
VOFF
Offset Error
±0.1
±0.7
LSB (max)
GE
Gain Error
±0.2
±1
LSB (max)
DYNAMIC CONVERTER CHARACTERISTICS
SINAD
Signal-to-Noise Plus Distortion Ratio
fIN = 100 kHz
61.7
61
dBFS (min)
SNR
Signal-to-Noise Ratio
fIN = 100 kHz
62
dB
THD
Total Harmonic Distortion
fIN = 100 kHz
-77
-73
dB (max)
SFDR
Spurious-Free Dynamic Range
fIN = 100 kHz
78
74
dB (min)
Intermodulation Distortion, Second Order
fa = 103.5 kHz, fb = 113.5 kHz
-78
dB
Terms
IMD
Intermodulation Distortion, Third Order
fa = 103.5 kHz, fb = 113.5 kHz
-78
dB
Terms
+5V Supply
11
MHz
FPBW
-3 dB Full Power Bandwidth
+3V Supply
8
MHz
POWER SUPPLY CHARACTERISTICS
2.7
V (min)
VDD
Supply Voltage
5.25
V (max)
VDD = +4.75V to +5.25V,
2
mA
SCLK On or Off
Normal Mode (Static)
VDD = +2.7V to +3.6V,
1
mA
SCLK On or Off
VDD = +4.75V to +5.25V,
2.0
3.5
mA (max)
IDD
fSAMPLE = 1 MSPS
Normal Mode (Operational)
VDD = +2.7V to +3.6V,
0.6
1.6
mA (max)
fSAMPLE = 1 MSPS
VDD = +5V, SCLK Off
0.5
µA (max)
Shutdown Mode
VDD = +5V, SCLK On
60
µA (max)
VDD = +5V, fSAMPLE = 1 MSPS
10
17.5
mW (max)
Power Consumption, Normal Mode
(Operational)
VDD = +3V, fSAMPLE = 1 MSPS
2
4.8
mW (max)
PD
VDD = +5V, SCLK Off
2.5
µW (max)
Power Consumption, Shutdown Mode
VDD = +3V, SCLK Off
1.5
µW (max)
ANALOG INPUT CHARACTERISTICS
VIN
Input Range
0 to VDD
V
IDCL
DC Leakage Current
±1
µA (max)
CINA
Analog Input Capacitance
30
pF
DIGITAL INPUT CHARACTERISTICS
VIH
Input High Voltage
2.4
V (min)
VDD = +5V
0.8
V (max)
VIL
Input Low Voltage
VDD = +3V
0.4
V (max)
IIN
Input Current
VIN = 0V or VDD
±10 nA
±1
µA (max)
CIND
Digital Input Capacitance
2
4
pF (max)
DIGITAL OUTPUT CHARACTERISTICS
ISOURCE = 200 µA,
VOH
Output High Voltage
VDD −0.2
V (min)
VDD = +2.7V to +5.25V
Copyright © 2003–2013, Texas Instruments Incorporated
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