EFM32TG210F32 Energy Micro, EFM32TG210F32 Datasheet - Page 434

• Manufacturer Part Number: EFM32TG210F32
• Description: MCU 32BIT 32KB FLASH 32-QFN
• Manufacturer: Energy Micro
• Series: Tiny Geckor

Specifications of EFM32TG210F32

• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 32MHz
• Connectivity: EBI/EMI, I²C, IrDA, SmartCard, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.8 V
• Data Converters: A/D 4x12b, D/A 1x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-VQFN Exposed Pad
• Processor Series: EFM32
• Core: ARM Cortex-M3
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: UART, I2C, SPI
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 17
• Number Of Timers: 1
• Operating Supply Voltage: 1.8 V to 3.8 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Processor To Be Evaluated: EFM32TG210
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

26.3.2.9 Dual Buffer ADC Driver
26.4 Register Description
26.5 Register Map
2010-12-21 - d0034_Rev0.90
Table 26.8. Three Op-amp Differential Amplifier Configuration
It is possible to use OPA0 and OPA1 to form a Dual Buffer ADC driver as shown in Figure 26.10 (p.
434) . Both opamps used can be configured in the same way. The positive input is configured by
setting the 0PAxPOSSEL to PAD and the negative input can be connected to the resistor ladder by
setting OPATAP in DACn_OPAxMUX. The output from the opamps can be configured to connect to the
ADC by setting OUTMODE to ALT or ALL in DACn_OPAxMUX.
Figure 26.10. Dual Buffer ADC Driver Overview
Table 26.9. Dual Buffer ADC Driver Configuration
The register description of the opamp can be found in the DAC chapter.
The register map of the opamp can be found in the DAC. See the DAC chapter for complete information.
OPA
OPA0
OPA0
OPA0
OPA0
OPA1
OPA1
OPA1
OPA
OPA0
OPA0
OPA0
OPA1
OPA1
OPA1
R1
VIP
+
-
R2
VOUTP = VIP (Unity Gain)
VOUTP= VIP(1+ R2/R1)
or
OPA bitfields
POSSEL
NEGSEL
RESINMUX
OUTPEN
POSSEL
NEGSEL
RESINMUX
OPA bitfields
POSSEL
NEGSEL
RESINMUX
POSSEL
NEGSEL
RESINMUX
R1
VIN
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434
+
-
R2
VOUTN = VIN (Unity Gain)
VOUTN= VIN(1+ R2/R1)
or
OPA Configuration
POPAD0, DAC0
UG
DISABLE
NEXTOUT
OPA1INP
UG
DISABLE
OPA Configuration
POSPAD0, DAC0
OPATAP
VSS
POSPAD1, DAC1
OPATAP
VSS
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