EFM32TG210F32 Energy Micro, EFM32TG210F32 Datasheet - Page 426

• 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 OPAMP - Operational Amplifier
26.1 Introduction
26.2 Features
2010-12-21 - d0034_Rev0.90
The opamps are highly configurable general purpose opamps, suitable for simple filters and buffer
applications. The three opamps can be configured to support various operational amplifier functions
through a network of muxes, with possibilities of selecting ranges of on-chip non-inverting and inverting
gain configurations, and selecting between outputs to various destinations. The opamps can also be
configured with external feedback in addition to supporting cascade connections between two or three
opamps. The opamps are rail-to-rail in and out. An user selectable mode has been added to optimize
linearity, in which case the input voltage to the opamp is restricted between VSS and VDD-1.2V.
• 3 individually configurable opamps
• Opamps support rail-to-rail inputs and outputs
• Supports the following functions
0 1 2 3
• General Opamp Mode
• Voltage Follower Unity Gain
• Inverting Input PGA
• Non-inverting PGA
• Cascaded Inverting PGA
4
VIN
+
-
VOUT
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What?
The opamps are low power amplifiers with
a high degree of flexibility targeting a wide
variety of standard opamp application areas.
With flexible gain and interconnection built-
in programming they can be configured to
support multiple common opamp functions,
with all pins available externally for filter
configurations. Each opamp has a rail to rail
input and a rail to rail output.
Why?
The opamps are included to save energy on
a pcb compared to standalone opamps, but
also reduce system cost by replacing external
opamps.
How?
Two of the opamps are made available
as part of the DAC, while the third opamp
is standalone. An ADC unity gain buffer
mode configuration makes it possible to
isolate kickback noise, in addition to popular
differential to single ended and differential
to differential driver modes. The opamps
can also be configured as a one, two- or
three-step cascaded PGA, and for all of the
built-in modes no external components are
necessary.
Quick Facts
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