US 12,603,117 B2 · Crossbar circuits utilizing current-mode digital-to-analog converters

Abstract

The present disclosure relates to crossbar circuits utilizing resistive random-access memory (RRAM) devices. A crossbar circuit may include a plurality of word lines intersecting with a plurality of bit lines, and a plurality of cross-point devices. Each of the cross-point devices is connected to one of the word lines and one of the bit lines and includes a resistive random-access memory (RRAM) device. The crossbar circuit may further include one or more current digital-to-analog converters (IDACs) configured to perform digital-to-analog conversion. The IDACs are selectively connected to the word lines or the bit lines to provide programming signals to program the RRAM devices to predetermined conductance values. The IDACs may linearly control the compliance currents of the RRAM devices to program the RRAM devices to multiple linearly separated conductance values.

Claims19

Dependent claims

An apparatus, comprising:

a plurality of word lines intersecting with a plurality of bit lines;
a plurality of cross-point devices, wherein each of the cross-point devices is connected to one of the word lines and one of the bit lines, wherein each of the cross-point devices comprises a resistive random-access memory (RRAM) device;
and
one or more current digital-to-analog converters (IDACs) configured to perform digital-to-analog conversion, wherein a first IDAC of the one or more IDACs is selectively connected to a first word line of the plurality of word lines or a first bit line of the plurality of bit lines, and wherein an output current generated by the first IDAC is applied to the first word line or the first bit line.

1 more element

Dependencies are inferred from the claim text.

Crossbar circuits utilizing current-mode digital-to-analog converters

Life of this patent

Crossbar circuits utilizing current-mode digital-to-analog converters

Life of this patent

Abstract

Claims19