TC14433A _ BDTIC a Leading Distributor in China

TC14433A

The TC14433A is a low power, high-performance, monolithic CMOS 3½ digit A/D converter. The TC14433A combines both analog and digital circuits on a single IC, thus minimizing the number of external components. This dual-slope A/D converter provides automatic polarity and zero correction with the addition of two external resistors and two capacitors. The full-scale voltage range of this ratiometric IC extends from 199.9 mV to 1.999 V. The TC14433A can operate over a wide range of power supply voltages, including batteries and standard 5-volt supplies. The TC14433A features improved performance over the industry standard TC14433. Rollover, which is the measurement of identical positive and negative signals, is guaranteed to have the same reading within one count for the TC14433A. Power consumption of the TC14433A is typically 4 mW, approximately one-half that of the industry standard TC14433.

Features

Accuracy: ±0.05% of Reading ±1 Count
Two Voltage Ranges: 1.999V and 199.9 mV
Up to 25 Conversions per Second
Zin > 1000M Ohms
Single Positive Voltage Reference
Auto-Polarity and Auto-Zero
Overrange and Underrange Signals Available
Operates in Auto-Ranging Circuits
Uses On-Chip System Clock or External Clock

Parameter

Parameter Name Value	Value
Supply Voltage (V) 4.5 to ±8	4.5 to ±8
Input Voltage Range (V) 199.9 mV to 1.999	199.9 mV to 1.999
DMM Yes	Yes
Max Power (mW) 20	20
Resolution (Digits) 3	3
Resolution (Counts) 2000	2000
Interface MUXed BCD	MUXed BCD
Temp Range (°C) -40 to +85	-40 to +85
Device Description BCD A/D	BCD A/D

Documents

3-1/2 Digit, Analog-to-Digital Converter	Data Sheets	07/10/2008	382KB
Analog & Interface Guide (Volume 2)	Brochures	10/11/2005	1067KB
Quick Guide to Microchip Development Tools	Brochures	10/15/2014	11223KB
Analog-to-Digital Converters Product Overview	Product Line Documents	10/27/2006	83KB
Analog & Interface Product Selector Guide	Product Line Card	03/21/2016	4116KB

Ordering Information

Part Number	Leads	Package Type	Temp Range	Packing	1+	26+	100+	1000+	5000+
TC14433AELI	28	PLCC	-40C to +85C	TUBE	13.78	11.48	10.44	8.70	8.03
TC14433AEPG	24	PDIP	-40C to +85C	TUBE	6.60	5.50	5.00	4.17	3.85

Similar Devices

Product	Description	Supply Voltage (V)	Resolution Counts	Interface	Price5K
TC14433	BCD A/D	4.5 to ±8	2000	MUXed BCD	$3.41
TC14433A	BCD A/D	4.5 to ±8	2000	MUXed BCD	$3.57
TC850	Binary A/D	5	32768	8-bit Parallel	$15.38

RoHS Information

PartNumber	DeviceWeight	ShippingWeight	LeadCount	PackageType	PackageWidth	SolderComposition	JEDECIndicator
TC14433AELI	1.142500	0.435897	28	PLCC	11.5x11.5x4.3	Matte Tin	e3
TC14433AELI713	1.142500	1.733333	28	PLCC	11.5x11.5x4.3	Matte Tin	e3
TC14433AEPG	1.850700	3.333333	24	PDIP	.600in	Matte Tin	e3