Abstract: Described is a circuit for background light suppression (SBI, 500) for a light propagation time sensor (22) which operates according to a phase measuring principle and the light propagation time pixels of which have integration nodes or diodes (Ga, Gb, diode_a, diode_b) for the accumulation of charges, having an input stage (50), an operational amplifier (OP) and an SBI current source (SQ), wherein the input phase (50) has bypass and common mode circuits (SBP, SVcm) via which signals of the integration nodes (Ga, Gb, diode_a, diode_b) are guided to the operational amplifier (OP) and via which the operational amplifier (OP) can be switched to a maximum detection or common mode operation, wherein the operational amplifier (OP) is designed such that based on the signals of the integration nodes (Ga, Gb, diode_a, diode_b) switched by the input stage (50) to the operational amplifier (OP), a gate voltage (gate_cs) is generated for the SBI current source (SQ), wherein the SBI current source (SQ) has a first current

Abstract: The invention relates to a PMD light transit time sensor (22) for an optical distance measurement system, comprising an array of PMD light transit time pixels (21), said light transit time pixels having diode nodes (Ga, Gb) for an A channel and a B channel (A, B) and being connectable to a corresponding column line (cola, colb) via a first switch (S1) and to a reset potential (vreset) via a second switch (S2). The PMD light transit time sensor comprises multiple shift registers, which are constructed and connected to the pixels such that the two switches (S1, S2) can be switched in an alternating manner on the basis of register entries of the individual registers (FF), wherein multiple columns or rows are at least partly assigned to a shift register; and a switch matrix (80), which is designed such that the column lines (cola, colb) can be connected to one of a plurality of amplifiers (100) and multiple column lines (cola, colb) can be connected to a common amplifier (100).

Abstract: Described is a circuit for background light suppression (SBI, 500) for a light propagation time sensor (22) which operates according to a phase measuring principle and the light propagation time pixels of which have integration nodes or diodes (Ga, Gb, diode_a, diode_b) for the accumulation of charges, having an input stage (50), an operational amplifier (OP) and an SBI current source (SQ), wherein the input phase (50) has bypass and common mode circuits (SBP, SVcm) via which signals of the integration nodes (Ga, Gb, diode_a, diode_b) am guided to the operational amplifier (OP) and via which the operational amplifier (OP) can be switched to a maximum detection or common mode operation, wherein the operational amplifier (OP) is designed such that based on the signals of the integration nodes (Ga, Gb, diode_a, diode_b) switched by the input stage (50) to the operational amplifier (OP), a gate voltage (gate_cs) is generated for the SBI current source (SQ), wherein the SBI current source (SQ) has a first current