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参数资料
型号： MSC1214Y2PAGTG4
厂商： TEXAS INSTRUMENTS INC
元件分类： 微控制器/微处理器
英文描述： 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP64
封装： GREEN, PLASTIC, TQFP-64
文件页数： 68/111页
文件大小： 1102K
代理商： MSC1214Y2PAGTG4
MSC1211, MSC1212
MSC1213,MSC1214
SBAS323G JUNE 2004 REVISED OCTOBER 2007
www.ti.com
6
ELECTRICAL CHARACTERISTICS: AVDD = 3V (continued)
All specifications from TMIN to TMAX, DVDD = +2.7V to 5.25V, AVDD = +3V, fMOD = 15.625kHz, PGA = 1, filter = Sinc3, Buffer ON, fDATA = 10Hz, Bipolar, fCLK = 8MHz,
and VREF ≡ (REF IN+) (REF IN) = +1.25V, unless otherwise noted. For VDAC, VREF = AVDD, RLOAD = 10k, and CLOAD = 200pF, unless otherwise noted.
MSC1211/12/13/14
PARAMETER
UNITS
MAX
TYP
MIN
CONDITIONS
ADC Offset DAC
Offset DAC Range
Bipolar Mode
±VREF/(2PGA)
V
Offset DAC Monotonicity
8
Bits
Offset DAC Gain Error
±1.5
% of Range
Offset DAC Gain Error Drift
1
ppm/
°C
System Performance
Resolution
24
Bits
ENOB
22
Bits
Output Noise
See Typical Characteristics
No Missing Codes
Sinc3 Filter
24
Bits
Integral Nonlinearity
End Point Fit, Bipolar Mode
0.0003
±0.0015
%FSR
Offset Error
After Calibration
±3.5
ppm of FS
Offset Drift(2)
Before Calibration
0.1
ppm of FS/
°C
Gain Error(3)
After Calibration
0.002
%
Gain Error Drift(2)
Before Calibration
1.0
ppm/
°C
System Gain Calibration Range
80
120
% of FS
System Offset Calibration Range
50
% of FS
At DC
115
dB
Common-Mode Rejection
fCM = 60Hz, fDATA = 10Hz
130
dB
Common-Mode Rejection
fCM = 50Hz, fDATA = 50Hz
120
dB
fCM = 60Hz, fDATA = 60Hz
120
dB
Normal Mode Rejection
fSIG = 50Hz, fDATA = 50Hz
100
dB
Normal Mode Rejection
fSIG = 60Hz, fDATA = 60Hz
100
dB
Power-Supply Rejection
At DC, dB = 20log(
VOUT/VDD)(4)
92
dB
Voltage Reference Inputs
Reference Input Range
REF IN+, REF IN
AGND
AVDD(3)
V
VREF
VREF ≡ (REF IN+) (REF IN)
0.1
1.25
AVDD
V
VREF Common-Mode Rejection
At DC
110
dB
Input Current(5)
VREF = 1.25V, ADC Only
3
A
DAC Reference Input Resistance
For Each DAC, PGA = 1
20
k
On-Chip Voltage Reference
Output Voltage
VREFH = 0 at +25
°C, REFCLK = 250kHz
1.245
1.25
1.255
V
Power-Supply Rejection Ratio
65
dB
Short-Circuit Current Source
2.6
mA
Short-Circuit Current Sink
50
A
Short-Circuit Duration
Sink or Source
Indefinite
Drift
5
ppm/
°C
Output Impedance
Sourcing 100
A
3
Startup Time from Power ON
CREFOUT = 0.1F
8
ms
Temperature Sensor Voltage
Buffer ON, T = +25
°C
115
mV
Temperature Sensor Coefficient
Buffer ON
375
V/°C
(1) The input impedance for PGA = 128 is the same as that for PGA = 64 (that is, 7M/64).
(2) Calibration can minimize these errors.
(3) The gain calibration cannot have a REF IN+ of more than AVDD 1.5V with Buffer ON. To calibrate gain, turn Buffer OFF.
(4) VOUT is change in digital result.
(5) 9pF switched capacitor at fSAMP clock frequency (see Figure 14).
(6) Linearity calculated using a reduced code range of 512 to 65024; output unloaded.
(7) Ensured by design and characterization; not production tested.
(8) Analog Brownout Detect OFF (HCR1.3 = 1), Analog LVD OFF (LVDCON.7 = 1).
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