What is Sense amplifier?
A circuit that amplifies the tiny voltage difference read from a memory cell and decides whether it is 0 or 1.
Field: DRAM
Sense amplifier in the explanations
The sense amplifier therefore amplifies a difference of tens to about a hundred mV to decide 0 or 1 and simultaneously writes the amplified level back into the cell.
Which correctly describes the read operation of DRAM?The sense amplifier then rapidly amplifies the tiny difference with positive feedback to decide 0 or 1.
Why is the voltage change on the bit line very small when D…Starting from the midpoint lets the bit line swing equally up or down for a 1 or a 0, making the sense amplifier's decision easier.
In DRAM access, what is the operation called that closes th…
Questions that mention Sense amplifier (5)
- Which correctly describes the read operation of DRAM?
- Why is the voltage change on the bit line very small when DRAM is read?
- In DRAM access, what is the operation called that closes the open row and returns the bit lines to an intermediate voltage to prepare for activating the next row?
- In DRAM cell arrays, which bit-line arrangement places the paired bit lines side by side within the same array?
- In an SRAM read, what is the operation called that charges the bit lines in advance to the supply voltage or similar?
Related terms
Bit line Word line Refresh Precharge 1T1C cell Bank CAS latency DDR SDRAM DIMM ECC (error-correcting code)