参数资料
型号: MSP430FG437IPNR
厂商: TEXAS INSTRUMENTS INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 8 MHz, RISC MICROCONTROLLER, PQFP80
封装: GREEN, PLASTIC, QFP-80
文件页数: 31/73页
文件大小: 1121K
代理商: MSP430FG437IPNR
MSP430FG43x
MIXED SIGNAL MICROCONTROLLER
SLAS380C APRIL 2004 REVISED MARCH 2011
37
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
12-bit ADC, timing parameters
PARAMETER
TEST CONDITIONS
MIN
NOM
MAX
UNIT
fADC12CLK
For specified performance of
ADC12 linearity parameters
VCC =
2.2V/3 V
0.45
5
6.3
MHz
fADC12OSC
Internal ADC12
oscillator
ADC12DIV=0,
fADC12CLK=fADC12OSC
VCC =
2.2 V/ 3 V
3.7
5
6.3
MHz
t
Conversion time
CVREF+ ≥ 5 μF, Internal oscillator,
fADC12OSC = 3.7 MHz to 6.3 MHz
VCC =
2.2 V/ 3 V
2.06
3.51
μs
tCONVERT
Conversion time
External fADC12CLK from ACLK, MCLK or SMCLK:
ADC12SSEL
≠ 0
13
×ADC12DIV×
1/fADC12CLK
μs
tADC12ON
Turn on settling time of
the ADC
(see Note 1)
100
ns
RS = 400 Ω, RI = 1000 Ω,
VCC = 3 V
1220
tSample
Sampling time
RS = 400 Ω, RI = 1000 Ω,
CI = 30 pF, τ = [RS + RI] x CI
(see Note 2)
VCC =
2.2 V
1400
ns
NOTES:
1. The condition is that the error in a conversion started after tADC12ON is less than ±0.5 LSB. The reference and input signal are already
settled.
2. Approximately ten Tau (
τ) are needed to get an error of less than ±0.5 LSB:
tSample = ln(2n+1) x (RS + RI) x CI+ 800 ns where n = ADC resolution = 12, RS = external source resistance.
12-bit ADC, linearity parameters
PARAMETER
TEST CONDITIONS
MIN
NOM
MAX
UNIT
E
Integral linearity error
1.4 V
≤ (VeREF+ VREF/VeREF) min ≤ 1.6 V
VCC =
±2
LSB
EI
Integral linearity error
1.6 V < (VeREF+ VREF/VeREF) min ≤ [VAVCC]
VCC =
2.2 V/3 V
±1.7
LSB
ED
Differential linearity
error
(VeREF+ VREF/VeREF)min ≤ (VeREF+ VREF/VeREF),
CVREF+ = 10 μF (tantalum) and 100 nF (ceramic)
VCC =
2.2 V/3 V
±1
LSB
EO
Offset error
(VeREF+ VREF/VeREF)min ≤ (VeREF+ VREF/VeREF),
Internal impedance of source RS < 100 Ω,
CVREF+ = 10 μF (tantalum) and 100 nF (ceramic)
VCC =
2.2 V/3 V
±2
±4
LSB
EG
Gain error
(VeREF+ VREF/VeREF)min ≤ (VeREF+ VREF/VeREF),
CVREF+ = 10 μF (tantalum) and 100 nF (ceramic)
VCC =
2.2 V/3 V
±1.1
±2
LSB
ET
Total unadjusted
error
(VeREF+ VREF/VeREF)min ≤ (VeREF+ VREF/VeREF),
CVREF+ = 10 μF (tantalum) and 100 nF (ceramic)
VCC =
2.2 V/3 V
±2
±5
LSB
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