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TDC-GP21
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Catalog excerpts

TDC-GP21 - 1

acam-messelectronic gmbH is now Member of the ams Group The technical content of this acam-messelectronic document is still valid. Contact information: Headquarters: ams AG Tobelbaderstrasse 30 8141 Unterpremstaetten, Austria Tel: +43 (0) 3136 500 0 e-Mail: ams_sales@ams.com Please visit our website at www.ams.com

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TDC-GP21 - 2

TDC-GP21 Universal 2-Channel Time-to-Digital Converters March 13th 2014 Document-No: DB GP21 en V1.6

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TDC-GP21 - 3

TDC-GP21 Published by acam-messelectronic gmbh ©acam-messelectronic gmbh 2014 Disclaimer / Notes “Preliminary” product information describes a product which is not in full production so that full information about the product is not available yet. Therefore, acam-messelectronic gmbh (“acam”) reserves the right to modify this product without notice. The information provided by this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by acam for its use, nor for any infringements of patents or other rights of third parties that may result from its use....

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TDC-GP21 - 4

ai-am mess electronic acam messelectronic gmbh - Friedrich-List-Str.4 - 76297 Stutensee - Germany - www.acam.de

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TDC-GP21 - 5

1 -2 acam messelectronic gmbh - Friedrich-List-Str.4 - 76297 Stutensee - Germany - www.acam.de

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TDC-GP21 - 6

TDC-GP211 Overview TDC-GP21 is next generation's upgrade for TDC-GP2. It offers pin-to-pin and functional compatibility, several feature improvements and an extended functionality. Analog elements like a chopper stabilized comparator and analog switches simplify external circuits in a significant manner. In parallel, measurement quality is improved and operating current is reduced. The firepulse generator is extended, a new low-power 32 kHz oscillator driver is implemented and the temperature measuring unit is further improved. All in all, the TDC-GP21 is perfectly suited to design...

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TDC-GP21 - 7

Ultrasonic-Flow-Converter Special Functions • Fire pulse generator, up to 127 pulses • Trigger to rising and/or falling edge • Precise stop enable by windowing • Low-power 32 kHz oscillator (500 nA) • Clock calibration unit • 7x32 Bit EEPROM Measurement mode 1 • 2 channels with typ. 90 ps resolution • channel double resolution with typ. 45 ps • Range 3.5 ns (0 ns) to 2.5 ps • 20 ns pulse-pair resolution, 4-fold multihit • Up to 500 000 measurements per second in measurement mode 1 ■ 4-wire SPI interface ■ 500 kHz continuous data rate max. ■ I/O voltage 2.5 V to 3.6 V ■ Core voltage 2.5 V to...

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TDC-GP21 - 8

Low-power clock control unit Fire pulse Control unit FIRE DOWN Configuration registers Analog section Package Package Oty; Carrier Order number This product is RoHS compliant and does not contain any Pb. acam messelectronic gmbh - Friedrich-List-Str.4 - 76297 Stutensee - Germany - www.acam.de

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TDC-GP21 - 9

1 -6 acam messelectronic gmbh - Friedrich-List-Str.4 - 76297 Stutensee - Germany - www.acam.de

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TDC-GP21 - 10

TDC-GP212 Characteristics & Specifications2.1 Electrical Characteristics Absolute Maximum Ratings Supply voltage Vcc vs. GND Vio vs. GND Vin Storage temperature (Tstg) ESD rating (HBM), each pin Junction temperature (Tj) Recommended Operating Conditions acam messelectronic gmbh - Friedrich-List-Str.4 - 76297 Stutensee - Germany - www.acam.de

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TDC-GP21 - 11

acam messelectronic gmbh - Friedrich-List-Str.4 - 76297 Stutensee - Germany - www.acam.de

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TDC-GP21 - 12

acam messelectronic gmbh - Friedrich-List-Str.4 - 76297 Stutensee - Germany - www.acam.de

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TDC-GP21 - 13

Ultrasonic-Flow-Converter2.2 Converter Specification Time Measuring Unit (Vio = Vcc = 3.0 U, Tj = 25°C) 2-4 acam messelectronic gmbh - Friedrich-List-Str.4 - 76297 Stutensee - Germany - www.acam.de

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TDC-GP21 - 14

TDC-GP21 Figure 2-1 Relative Variation of un-calibrated least significant bit with temperature and supply voltage, reference 3.0V/25°C Temperature Measuring Unit Symbol Internal Schmitt trigger external Schmitt trigger acam messelectronic gmbh - Friedrich-List-Str.4 - 76297 Stutensee - Germany - www.acam.de

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TDC-GP21 - 15

PT500 (C0G-type) 2 measured with external 74AHC14 Schmitt trigger 3 compared to an ideal gain of 1 2-6 acam messelectronic gmbh - Friedrich-List-Str.4 - 76297 Stutensee - Germany - www.acam.de

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TDC-GP21 - 16

TDC-GP21 2.3 Timings At Vcc = 3.0 V ± 0.3 V, ambient temperature -40 °C to +85 °C unless otherwise specified Oscillator acam messelectronic gmbh - Friedrich-List-Str.4 - 76297 Stutensee - Germany - www.acam.de

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TDC-GP21 - 17

STOP EN_Stop 2-8 acam messelectronic gmbh - Friedrich-List-Str.4 - 76297 Stutensee - Germany - www.acam.de

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TDC-GP21 - 18

Figure 2-5 Reset Timings acam messelectronic gmbh - Friedrich-List-Str.4 - 76297 Stutensee - Germany - www.acam.de

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TDC-GP21 - 19

2-10 acam messelectronic gmbh - Friedrich-List-Str.4 - 76297 Stutensee - Germany - www.acam.de

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TDC-GP21 - 20

* Rdson temperature ports: typ. 1.8 Q @ 3.0 V acam messelectronic gmbh - Friedrich-List-Str.4 - 76297 Stutensee - Germany - www.acam.de 2-11

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TDC-GP21 - 21

Package Drawings Figure 2-7 QFN-32 package outline, 5 x 5 x 0.9 mm³, 0.5 mm lead pitch Caution: Center pad, 3.70 * 3.70 mm², is internally connected to GND. No wires other than GND are allowed underneath. It is not necessary to connect the center pad to GND. Suitable socket: Plastronics 32QN50S15050D Landing Pattern: acam messelectronic gmbh - Friedrich-List-Str.4 - 76297 Stutensee - Germany - www.acam.de

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TDC-GP21 - 22

TDC-GP21 Thermal resistance: Roughly 28 K/W (value just for reference). Environmental: The package is RoHS compliant and does not contain any Pb. Moisture Sensitive Level (MSL) Based on JEDEC 020 Moisture Sensitivity Level definition the TDC -GP21 is classified as MSL 1. Soldering Temperature Profile The temperature profile for infrared reflow furnace (in which the temperature is the resin’s surface temperature) should be maintained within the range described below. Figure 2-9 Soldering profile acam messelectronic gmbh - Friedrich-List-Str.4 - 76297 Stutensee - Germany - www.acam.de

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TDC-GP21 - 23

Maximum temperature The maximum temperature requirement for the resin surface, given 260ºC as the peak temperature of the package body’s surface, is that the resin surface temperature must not exceed 250ºC for more than 10 seconds. This temperature should be kept as low as possible to reduce the load caused by thermal stress on the package , which is why soldering for short periods only is recommended. In addition to using a suitable temperature profile, we also recommend that you check carefully to confirm good soldering results. Date Code: YYWWA: YY = Year, WW = week, A = Assembly site...

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