SYMBOL PARAMETER
CONDITIONS MIN TYP MAX UNITS
V IH High Level Input Voltage
2.7V ≤ V CC ≤ 5.5V q 2.5V CS, F O
2.7V ≤ V CC ≤
3.3V 2.0
V
V IL Low Level Input Voltage 4.5V ≤ V CC ≤ 5.5V q 0.8V CS, F O
2.7V ≤ V CC ≤ 5.5V 0.6
V V IH High Level Input Voltage 2.7V ≤ V CC ≤ 5.5V (Note 9)q 2.5V SCK
2.7V ≤ V CC ≤
3.3V (Note 9) 2.0
V V IL Low Level Input Voltage 4.5V ≤ V CC ≤ 5.5V (Note 9)q 0.8V SCK
2.7V ≤ V CC ≤ 5.5V (Note 9)0.6
V I IN Digital Input Current 0V ≤ V IN ≤ V CC
q –1010µA CS, F O
I IN Digital Input Current 0V ≤ V IN ≤ V CC (Note 9)
q
–10
10
µA SCK
C IN Digital Input Capacitance 10pF CS, F O
C IN Digital Input Capacitance (Note 9)10
pF SCK
V OH High Level Output Voltage I O = –800µA q V CC – 0.5
V SDO
V OL Low Level Output Voltage I O = 1.6mA
q 0.4
V SDO
V OH High Level Output Voltage I O = –800µA (Note 10)q V CC – 0.5
V SCK
V OL Low Level Output Voltage I O = 1.6mA (Note 10)
q 0.4
偏硅酸
V SCK
I OZ
High-Z Output Leakage q
–10
10µA
SDO
DIGITAL I PUTS A D DIGITAL OUTPUTS U
U
SYMBOL PARAMETER CONDITIONS
MIN TYP MAX UNITS
V CC Supply Voltage q 2.7
5.5
V I CC
Supply Current
Conversion Mode CS = 0V (Note 12)q 200300µA Sleep Mode
CS = V CC (Note 12)q
2030
µA
POWER REQUIRE E T S W
U The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at T A = 25°C. (Note 3)
The
q denotes specifications which apply over the full operating temperature range,otherwise specifications are at T A = 25°C. (Note 3)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V IN Input Voltage Range (Note 14)
q ZS SET – 0.12V REF FS SET + 0.12V REF
V FS SET Full-Scale Set Range q 0.1 + ZS SET
V CC V ZS SET Zero-Scale Set Range q
FS SET – 0.1
V C S(IN)Input Sampling Capacitance 10pF C S(REF)Reference Sampling Capacitance 15
pF
I IN(LEAK)Input Leakage Current CS = V CC
q –10110nA I REF(LEAK)
Reference Leakage Current
V REF = 2.5V, CS = V CC
q
–12
1
12
nA
The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25°C. V REF = FS SET – ZS SET . (Note 3)
A ALOG I PUT A D REFERE CE
U
U
U U
The q denotes specifications which apply over the full operating temperature
range, otherwise specifications are at T A = 25°C. (Note 3)
f EOSC External Oscillator Frequency Range q 2.56307.2kHz t HEO External Oscillator High Period q 0.5390µs t LEO External Oscillator Low Period q
0.5
390
µs t CONV
Conversion Time
F O = 0V q 130.86133.53136.20ms F O = V CC
q 157.03160.23163.44
ms External Oscillator (Note 11)q
20510/f EOSC (in kHz)
ms f ISCK Internal SCK Frequency Internal Oscillator (Note 10)联通cdma
半带滤波器19.2kHz External Oscillator (Notes 10, 11)f EOSC /8
kHz
D ISCK Internal SCK Duty Cycle (Note 10)45
55%f ESCK External SCK Frequency Range (Note 9)q 2000
kHz t LESCK External SCK Low Period (Note 9)q 250ns t HESCK External SCK High Period
(Note 9)
q 250ns t DOUT_ISCK Internal SCK 32-Bit Data Output Time Internal Oscillator (Notes 10, 12)q 1.64
1.67 1.70ms External Oscillator (Notes 10, 11)q 256/f EOSC (in kHz)ms t DOUT_ESCK External SCK 32-Bit Data Output Time (Note 9)
q 32/f ESCK (in kHz)ms t 1CS ↓ to SDO Low Z q 0150ns t 2CS ↑ to SDO High Z q
0150ns t 3CS ↓ to SCK ↓(Note 10)q 0150
ns t 4CS ↓ to SCK ↑(Note 9)q 50
ns t KQMAX SCK ↓ to SDO Valid q 200
ns t KQMIN SDO Hold After SCK ↓(Note 5)
q 15ns t 5SCK Set-Up Before CS ↓q 50
ns t 6
SCK Hold After CS ↓
博客出版q
50ns
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS Note 1: Absolute Maximum Ratings are those values beyond which the life of the device may be impaired.
Note 2: All voltage values are with respect to GND.
Note 3: V CC = 2.7 to 5.5V unless otherwise specified. Input source resistance = 0Ω.
Note 4: Internal Conversion Clock source with the F O pin tied to GND or to V CC or to external conversion clock source with f EOSC = 153600Hz unless otherwise specified.Note 5: Guaranteed by design, not subject to test.
Note 6: Integral nonlinearity is defined as the deviation of a code from a straight line passing through the actual endpoints of the transfer curve. The deviation is measured from the center of the quantization band.
Note 7: F O = 0V (internal oscillator) or f EOSC = 153600Hz ±2%(external oscillator).
Note 8: F O = V CC (internal oscillator) or f EOSC = 128000Hz ±2%(external oscillator).
Note 9: The converter is in external SCK mode of operation such that the SCK pin is used as digital input. The frequency of the clock signal driving SCK during the data output is f ESCK and is expressed in kHz.Note 10: The converter is in internal SCK mode of operation such that the SCK pin is used as digital output. In this mode of operation, the SCK pin has a total equivalent load capacitance C LOAD = 20pF.
Note 11: The external oscillator is connected to the F O pin. The external oscillator frequency, f EOSC , is expressed in kHz.Note 12: The converter uses the internal oscillator.F O = 0V or F O = V CC .
Note 13: The output noise includes the contribution of the internal calibration operations.
Note 14: V REF = FS SET – ZS SET . The minimum input voltage is limited to –0.3V and the maximum to V CC + 0.3V.Note 15: V CC (DC) = 4.1V, V CC (AC) = 2.8V P-P .
TI I G CHARACTERISTICS
U
W
INPUT VOLTAGE (V)
05 2.024012 G01
0.5
1.0
1.5
2.5
V CC = 3V V REF = 2.5V
T A = –55°C, –45°C, 25°C, 90°C
125°C
INPUT VOLTAGE (V)
05
2.024012 G02
0.5
1.0
1.5 3.0
女生我最大
2.5V CC = 3V V REF = 2.5V
T A = –55°C, –45°C, 25°C, 90°C
125°C
Positive Extended Input Range Total Unadjusted Error (3V Supply)
Total Unadjusted Error (5V Supply)
INPUT VOLTAGE (V)
2.5 2.55
2.6 2.65 2.724012 G042.75 2.8
V CC = 3V V REF = 2.5V
T A = –55°C, –45°C, 25°C, 90°C, 125°C INPUT VOLTAGE (V)
05424012 G05
1
2
35
V CC = 5V V REF = 5V
T A = –55°C, –45°C, 25°C, 90°C, 125°C
INPUT VOLTAGE (V)
0424012 G06
1
2 2.55
30.5 1.5 4.53.5V CC = 5V V REF = 5V
T A = –55°C, –45°C, 25°C, 90°C, 125°C
Offset Error vs Reference Voltage
Positive Extended Input Range Total Unadjusted Error (5V Supply)
INPUT VOLTAGE (V)
5.0
5.05
高坠5.1 5.15 5.224012 G08
5.25
5.3
T A = 25°C T A = –45°C T A = –55°C
T A = 90°C
T A = 125°C
V CC = 5V V REF = 5V
REFERENCE VOLTAGE (V)
424012 G09
1
2
35
V CC = 5V T A = 25°C
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