參數(shù)資料
型號(hào): EFM32TG842F32
廠商: Energy Micro
文件頁數(shù): 30/68頁
文件大?。?/td> 0K
描述: MCU 32BIT 32KB FLASH 64-LQFP
特色產(chǎn)品: EFM32 Tiny Gecko
標(biāo)準(zhǔn)包裝: 1
系列: Tiny Gecko
核心處理器: ARM? Cortex?-M3
芯體尺寸: 32-位
速度: 32MHz
連通性: I²C,IrDA,智能卡,SPI,UART/USART
外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,DMA,I²S,LCD,POR,PWM,WDT
輸入/輸出數(shù): 53
程序存儲(chǔ)器容量: 32KB(32K x 8)
程序存儲(chǔ)器類型: 閃存
RAM 容量: 4K x 8
電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 3.8 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x12b,D/A 1x12b
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 64-TQFP
包裝: 標(biāo)準(zhǔn)包裝
其它名稱: 914-1037-6
...the world's most energy friendly microcontrollers
2013-06-28 - EFM32TG842FXX - d0072_Rev1.10
36
www.energymicro.com
Symbol
Parameter
Condition
Min
Typ
Max
Unit
SRDAC
Sample rate
500
ksam-
ples/s
Continuous Mode
1000
kHz
Sample/Hold Mode
250
kHz
fDAC
DAC clock frequency
Sample/Off Mode
250
kHz
CYCDACCONV
Clock cyckles per conver-
sion
2
tDACCONV
Conversion time
2
s
tDACSETTLE
Settling time
5
s
500 kSamples/s, 12 bit, sin-
gle ended, internal 1.25V ref-
erence
58
dB
SNRDAC
Signal to Noise Ratio
(SNR)
500 kSamples/s, 12 bit, sin-
gle ended, internal 2.5V refer-
ence
59
dB
500 kSamples/s, 12 bit, sin-
gle ended, internal 1.25V ref-
erence
57
dB
SNDRDAC
Signal to Noise-pulse Dis-
tortion Ratio (SNDR)
500 kSamples/s, 12 bit, sin-
gle ended, internal 2.5V refer-
ence
54
dB
500 kSamples/s, 12 bit, sin-
gle ended, internal 1.25V ref-
erence
62
dBc
SFDRDAC
Spurious-Free Dynamic
Range(SFDR)
500 kSamples/s, 12 bit, sin-
gle ended, internal 2.5V refer-
ence
56
dBc
VDACOFFSET
Offset voltage
After calibration, single ended
2
mV
DNLDAC
Differential non-linearity
±1
LSB
INLDAC
Integral non-linearity
±5
LSB
MCDAC
No missing codes
12
bits
3.12 Operational Amplifier (OPAMP)
The electrical characteristics for the Operational Amplifiers are based on simulations.
Table 3.16. OPAMP
Symbol
Parameter
Condition
Min
Typ
Max
Unit
OPA2 BIASPROG=0xF,
HALFBIAS=0x0, Unity Gain
400
A
OPA2 BIASPROG=0x7,
HALFBIAS=0x1, Unity Gain
100
A
IOPAMP
Active Current
OPA2 BIASPROG=0x0,
HALFBIAS=0x1, Unity Gain
13
A
GOL
Open Loop Gain
OPA2 BIASPROG=0xF,
HALFBIAS=0x0
101
dB
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