TDCs

Digital

Home Modular Pulse Processing ElectronicsDigital TDCs

The TDCs (Time-to-Digital Converters) family provides high-precision timing measurements for nuclear, particle physics, and detector characterization applications. Designed for multi-channel systems and high-rate environments, these modules convert the time interval between reference and detector signals into digital data with picosecond-level resolution.

Supporting multi-hit operation, leading/trailing edge detection, and programmable acquisition modes, the family enables accurate time tagging, time-over-threshold measurements, and coincidence analysis across large detector arrays. Advanced buffering, flexible readout architectures, and support for multiple logic standards ensure seamless integration into modern VME-based data acquisition systems and high-throughput experiments.

Picosecond-level timing resolution with multi-hit capability for high-precision measurements
Leading/trailing edge detection and programmable acquisition modes (trigger matching or continuous)
High channel density with deep buffers and fast VME/optical readout options
Compatible with multiple input standards (NIM, LVDS, ECL) for flexible system integration

TDCs Models

Grid Compare

VX1190A-2ESST

3 programmable ranges: 100 ps LSB (19 bit resolution), 200 ps LSB (19 bit) and 800 ps LSB (17 bit)
ECL/LVDS inputs automatically detected
5 ns Double Hit Resolution

DT5203

64-ch TDC unit for high-resolution timing applications housing the CERN picoTDC
Part of FERS-5200, the CAEN platform for the readout of large arrays of detectors (SiPM, MA-PMTs, Gas Tubes, Si detectors, …)
Timing resolution: LSB = 3.125 ps, RMS typ. ∼ 7 ps

V1290A-2ESST

25 ps LSB
21 bit resolution
52 µs full scale range

V1290N-2ESST

25 ps LSB
21 bit resolution
52 µs full scale range

V775N

High channel density
12bit resolution
2.8 µs / 16 ch conversion time

A5203

64/128-ch TDC unit for high-resolution timing applications housing the CERN picoTDC
Part of FERS-5200, the CAEN platform for the readout of large arrays of detectors (SiPM, MA-PMTs, Gas Tubes, Si detectors, …)
Timing resolution: LSB = 3.125 ps, RMS typ. ∼ 7 ps

V775

High channel density
12 bit resolution
5.7 µs / 32 ch conversion time

V1190A-2ESST

3 programmable ranges: 100 ps LSB (19 bit resolution), 200 ps LSB (19 bit) and 800 ps LSB (17 bit)
ECL/LVDS inputs automatically detected
5 ns Double Hit Resolution

Image	Name	Package	No. of Channels	Resolution (bit)	Type	Conversion Time (µs)	LSB (ps)	Full Scale Range (µs)	Input Type	Connectors
	VX1190A-2ESST	VME64X	128	19 / 17	Multihit Digital TDC	-	100 / 200 / 800	52 / 104	ECL / LVDS	Robinson Nugent Flat
	DT5203	Desktop	64	26	Multihit Digital TDC	-	3.125	52	LVDS	1 edge connector type HSEC8-170
	V1290A-2ESST	VME	32	21	Multihit Digital TDC	-	25	52	ECL / LVDS	Std. Flat
	V1290N-2ESST	VME	16	21	Multihit Digital TDC	-	25	52	NIM	LEMO
	V775N	VME	16	12	Analog TDC	2.8	35 / 300	0.14 / 1.2	NIM	LEMO
	A5203	Desktop	64/128	26	Multihit Digital TDC	-	3.125	52	LVDS	1 edge connector type HSEC8-170
	V775	VME	32	12	Analog TDC	5.7	35 / 300	0.14 / 1.2	ECL	Std. Flat
	V1190A-2ESST	VME	128	19 / 17	Multihit Digital TDC	-	100 / 200 / 800	52 / 104	ECL / LVDS	Robinson Nugent Flat