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參數(shù)資料
| 型號： | MC145050P |
| 廠商： | MOTOROLA INC |
| 元件分類： | ADC |
| 英文描述： | 10-Bit A/D Converter with Serial Interface |
| 中文描述： | 11-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDIP20 |
| 封裝： | PLASTIC, DIP-20 |
| 文件頁數(shù)： | 3/15頁 |
| 文件大?。?/td> | 181K |
| 代理商： | MC145050P |
MC145050 MC145051
MOTOROLA WIRELESS SEMICONDUCTOR
SOLUTIONS DEVICE DATA
3
DC ELECTRICAL CHARACTERISTICS
(Voltages Referenced to VSS, Full Temperature and Voltage Ranges per Operation Ranges Table, unless otherwise indicated)
Symbol
Parameter
Test Condition
Guaranteed
Limit
Unit
VIH
Minimum High-Level Input Voltage
(Din, SCLK, CS, ADCLK)
2.0
V
VIL
Maximum Low-Level Input Voltage
(Din, SCLK, CS, ADCLK)
0.8
V
VOH
Minimum High-Level Output Voltage
(Dout, EOC)
Iout = – 1.6 mA
Iout = – 20
μ
A
2.4
VDD – 0.1
V
VOL
Minimum Low-Level Output Voltage
(Dout, EOC)
Iout = + 1.6 mA
Iout = 20
μ
A
0.4
0.1
V
Iin
Maximum Input Leakage Current
(Din, SCLK, CS, ADCLK)
Vin = VSS or VDD
±
2.5
μ
A
IOZ
IDD
Iref
IAl
Maximum Three-State Leakage Current (Dout)
Maximum Power Supply Current
Vout = VSS or VDD
Vin = VSS or VDD, All Outputs Open
Vref = VDD, VAG = VSS
VAl = VSS to VDD
±
10
μ
A
2.5
mA
Maximum Static Analog Reference Current (Vref)
Maximum Analog Mux Input Leakage Current between all
deselected inputs and any selected input (AN0 – AN10)
100
μ
A
±
1
μ
A
A/D CONVERTER ELECTRICAL CHARACTERISTICS
(Full Temperature and Voltage Ranges per Operation Ranges Table; MC145050: 500 kHz
≤
ADCLK
≤
2.1 MHz, unless otherwise noted)
Characteristic
Definition and Test Conditions
Guaranteed
Limit
Unit
Resolution
Number of bits resolved by the A/D converter
10
Bits
Maximum Nonlinearity
Maximum difference between an ideal and an actual ADC transfer function
±
1
LSB
Maximum Zero Error
Difference between the maximum input voltage of an ideal and an actual
ADC for zero output code
±
1
LSB
Maximum Full-Scale Error
Difference between the minimum input voltage of an ideal and an actual
ADC for full-scale output code
±
1
LSB
Maximum Total Unadjusted Error
Maximum sum of nonlinearity, zero error, and full-scale error
±
1
LSB
Maximum Quantization Error
Uncertainty due to converter resolution
±
1/2
LSB
Absolute Accuracy
Difference between the actual input voltage and the full-scale weighted
equivalent of the binary output code, all error sources included
±
1-1/2
LSB
Maximum Conversion Time
Total time to perform a single analog-to-digital conversion
MC145050
MC145051
44
44
ADCLK
cycles
μ
s
Data Transfer Time
Total time to transfer digital serial data into and out of the device
10 to 16
SCLK
cycles
Sample Acquisition Time
Analog input acquisition time window
6
SCLK
cycles
Minimum Total Cycle Time
Total time to transfer serial data, sample the analog input, and perform the
conversion
MC145050: ADCLK = 2.1 MHz, SCLK = 2.1 MHz
MC145051: SCLK = 2.1 MHz
26
49
μ
s
Maximum Sample Rate
Rate at which analog inputs may be sampled
MC145050: ADCLK = 2.1 MHz, SCLK = 2.1 MHz
MC145051: SCLK = 2.1 MHz
38
20.4
ks/s
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