TC3403 MICROCHIP [Microchip Technology], TC3403 Datasheet

no-image

TC3403

Manufacturer Part Number
TC3403
Description
+1.8V Low Power, Quad Input, 16-Bit Sigma-Delta A/D Converter with a Power Fault Monitor and Microprocessor Reset Circuit
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
Features
• 16-bit Resolution at Eight Conversions Per
• 1.8V – 5.5V Operation, Low Power Operating
• Four Single-ended Inputs with Built-in Multiplexer
• microPort™ Serial Bus Requires only two
• Uses Internal or External Reference
• Automatically Enters Sleep Mode when not in use
• V
• Early Warning Power Fail Detector, also suitable as
Applications
• Consumer Electronics, Thermostats, CO
• Embedded Systems, Data Loggers,
• Medical Instruments
Device Selection Table
©
TC3403VPE
TC3403VQR 16-Pin QSOP Narrow)
+1.8V Low Power, Quad Input, 16-Bit Sigma-Delta A/D Converter
Second, Adjustable Down to 10-bit Resolution at
512 Conversions Per Second
280µA; Sleep: 93µA
Interface Lines
Shutdown Mode
Wake-Up Timer Operational in Shutdown Mode
Monitors, Humidity Meters, Security Sensors
Portable Equipment
2002 Microchip Technology Inc.
Number
DD
Part
with a Power Fault Monitor and Microprocessor Reset Circuit
Monitor and Reset Generator Operational in
16-Pin PDIP (Narrow)
Package
Temperature
0°C to +85°C
0°C to +85°C
Range
Package Type
General Description
The TC3403 is a low cost, low power analog-to-digital
converter based on Microchip’s Sigma-Delta technol-
ogy. It will perform 16-bit conversions (15-bit plus sign)
at up to eight per second. The TC3403 is optimized for
use as a microcontroller peripheral in low cost, battery
operated systems. A voltage reference is included, or
an external reference can be used. A V
a reset generator provides Power-on Reset and Brown-
out protection while an extra threshold detector is
suitable for use as an early warning Power Fail
detector, or as a Wake-up Timer.
The TC3403’s 2-wire microPort™ digital interface is
used for starting conversions and for reading out the
data. Driving the SCLK line low starts a conversion.
After the conversion starts, each additional falling edge
(up to six) detected on SCLK for t
the A/D resolution by one bit and cuts conversion time
in half. After a conversion is completed, clocking the
SCLK line puts the MSB through LSB of the resulting
data word onto the SDAT line, much like a shift register.
The part automatically sleeps when not performing a
data conversion.
The TC3403 is available in a 16-Pin PDIP and a 16-Pin
QSOP package.
REF
IN2+
IN3+
IN4+
IN1+
GND
V
PFI
TH
IN
1
2
3
4
5
6
7
8
16-Pin QSOP
16-Pin PDIP
TC3403
TC3403
4
16
15
14
13
12
11
10
seconds reduces
9
DS21412B-page 1
DD
V
A1
A0
PFO
SDAT
REF
SCLK
RESET
monitor with
DD
OUT

Related parts for TC3403

TC3403 Summary of contents

Page 1

... SCLK line puts the MSB through LSB of the resulting data word onto the SDAT line, much like a shift register. The part automatically sleeps when not performing a data conversion. The TC3403 is available in a 16-Pin PDIP and a 16-Pin QSOP package. TC3403 16-Pin PDIP ...

Page 2

... RESET RST V BATT R7 100k REF I/05 PFO IN REF I/06 OUT PFI V BATT C2 R4 10µF 1MΩ 1.193V TC3403 x2 Σ – ∆ Data Shift Modulator Reg. AMux SET Clock D Q Generator and Control Start CLR Conv. Circuitry SET D Q CLR Reset Delay Timer ...

Page 3

... PFO, RESET .......................... (GND – 0.3V) to 5.5V Input Voltage (All Other Pins): .................................. (GND – 0.3V Operating Temperature Range ................. 0°C to 85°C Storage Temperature ........................ -65°C to +150°C TC3403 DC ELECTRICAL SPECIFICATIONS Electrical Characteristics 25°C and V A temperatures of 0°C to 85° 1.25V, Internal Clock Frequency = 520kHz. ...

Page 4

... TC3403 TC3403 DC ELECTRICAL SPECIFICATIONS (CONTINUED) Electrical Characteristics 25°C and V A temperatures of 0°C to 85° 1.25V, Internal Clock Frequency = 520kHz. REF Symbol Parameter SCLK, A0, A1, ENABLE V Input Low Voltage IL V Input High Voltage IH I Leakage Current LEAK SDAT, RESET, PFO ...

Page 5

... A1 Input Input Input Input 4. 15 SCLK Digital Input. This is the microPort™ serial clock input. The TC3403 comes out of Sleep mode and a conversion cycle begins when this pin is driven low. After the conversion starts, each additional falling edge (up to six) detected on SCLK for t by one bit ...

Page 6

... Timing Diagrams, Figure 3-1, Figure 3-2 and Figure 3-3. 3.1 A/D Converter Operation When the TC3403 is not converting Sleep mode with both the SCLK and SDAT lines high. An A/D con- version is initiated by a high to low transition on the SCLK line at which time the internal clock of the TC3403 is started and the address value (A0 and A1) is internally latched ...

Page 7

... Microchip Technology Inc. © N-1 (MSB) Data Conversion Complete Reset Generator Timing PFI Power Fail Comparator Timing TC3403 Sleep Mode N-2 (LSB) Data Output Timing Time t 11 Time DS21412B-page 7 ...

Page 8

... TC3403 FIGURE 3-4: SCLK AND SDAT WAVEFORMS FOR 16, 12 AND 10-BIT CONVERSIONS SCLK SDAT Data Conversion Complete SCLK > SDAT Data Conversion Complete SCLK < SDAT SCLK < SDAT DS21412B-page 8 16-bit Data Conversion, Long Start Pulse, ...

Page 9

... High to Low? Yes A/D No Resolution 10 > Yes Reduce A/D Resolution by 1-bit ( – 1); SDAT = High 2002 Microchip Technology Inc. © TC3403 SDAT = Low CONVCLK = 2m? No (Conversion Done?) Yes Power Down Analog, Conversion Complete, SDAT = High SCLK No High to Low? Yes SDAT = Dm – 1 Yes m ≥ ...

Page 10

... The Power Fail detector is a comparator in which the inverting input is connected to the internal voltage reference. The non-inverting input is the PFI pin of the . When TC3403 and the PFO pin is the active low, open drain OUT output. This comparator is suitable as an early warning fail or low battery indicator typical application, ...

Page 11

... Carrier Tape, Reel Size, Number of Components Per Reel and Reel Size Package Carrier Width (W) 16-Pin QSOP (N) 2002 Microchip Technology Inc. © User Direction of Feed P Standard Reel Component Orientation for TR Suffix Device Pitch (P) Part Per Full Reel 2500 TC3403 W Reel Size 13 in DS21412B-page 11 ...

Page 12

... TC3403 4.3 Package Dimensions 16-Pin PDIP (Narrow) .045 (1.14) .030 (0.76) .770 (19.56) .740 (18.80) .200 (5.08) .140 (3.56) .150 (3.81) .115 (2.92) .110 (2.79) .090 (2.29) 16-Pin QSOP (Narrow) .196 (4.98) .189 (4.80) .025 .012 (0.31) (0.635) .008 (0.21) TYP. DS21412B-page 12 PIN 1 .270 (6.86) .240 (6.10) .040 (1.02) .020 (0.51) .014 (0.36) .008 (0.20) .070 (1.78) .022 (0.56) .045 (1.14) .015 (0.38) PIN 1 .157 (3.99) .150 (3.81) ...

Page 13

... The Microchip Worldwide Site (www.microchip.com) Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using. New Customer Notification System Register on our web site (www.microchip.com/cn) to receive the most current information on our products. © 2002 Microchip Technology Inc. TC3403 DS21412B-page 13 ...

Page 14

... TC3403 NOTES: DS21412B-page 14 © 2002 Microchip Technology Inc. ...

Page 15

... Microchip. No licenses are con- veyed, implicitly or otherwise, under any intellectual property rights. 2002 Microchip Technology Inc. © TC3403 Trademarks The Microchip name and logo, the Microchip logo, FilterLab microID, MPLAB, PIC, PICmicro, PICMASTER, ...

Page 16

W ORLDWIDE AMERICAS Corporate Office 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: 480-792-7627 Web Address: http://www.microchip.com Rocky Mountain 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7966 Fax: 480-792-7456 Atlanta 500 Sugar Mill Road, ...

Page 17

... This datasheet has been download from: www.datasheetcatalog.com Datasheets for electronics components. ...

Related keywords