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TC3402VQR Datasheet

  • TC3402VQR

  • +1.8 Low Power, Quad Input, 16-Bit Sigma-Delta A/D Converter

  • 16頁(yè)

  • MICROCHIP   MICROCHIP

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TC3402
+1.8 Low Power, Quad Input, 16-Bit Sigma-Delta A/D Converter
Features
鈥?16-bit Resolution at Eight Conversions Per
Second, Adjustable Down to 10-bit Resolution at
512 Conversions Per Second
鈥?1.8V 鈥?5.5V Operation, Low Power Operating
250碌A(chǔ); Sleep: 0.75碌A(chǔ)
鈥?Four True Differential Inputs with Built-in Multiplexer
鈥?microPort鈩?Serial Bus Requires only two
Interface Lines
鈥?Uses Internal or External Reference
鈥?Automatically Enters Sleep Mode when not in use
Package Type
16-Pin PDIP
16-Pin QSOP
IN1+
IN1-
IN2+
IN2-
IN3+
IN3-
REF
IN
GND
1
2
3
4
5
6
7
8
16
V
DD
15
14
SCLK
A0
A1
IN4+
IN4-
TC3402
13
12
11
Applications
鈥?Consumer Electronics, Thermostats, CO
Monitors, Humidity Meters, Security Sensors
鈥?Embedded Systems, Data Loggers,
Portable Equipment
鈥?Medical Instruments
10
SDAT
9
REF
OUT
General Description
The TC3402 is a low cost, low power analog-to-digital
converter based on Microchip鈥檚 Sigma-Delta technol-
ogy. It will perform 16-bit conversions (15-bit plus sign)
at up to eight per second. The TC3402 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.
The TC3402鈥檚 2-wire microPort鈩?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
4
seconds reduces
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 TC3402 is available in a 16-Pin PDIP and a 16-Pin
QSOP package.
Device Selection Table
Part
Number
TC3402VPE
Package
16-Pin PDIP (Narrow)
Temperature
Range
0擄C to +85擄C
0擄C to +85擄C
TC3402VQR 16-Pin QSOP Narrow)
2002 Microchip Technology Inc.
DS21411B-page 1
漏

TC3402VQR 產(chǎn)品屬性

  • 100

  • 集成電路 (IC)

  • 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器

  • -

  • 16

  • 8

  • 串行

  • 1

  • -

  • 單電源

  • 0°C ~ 85°C

  • 表面貼裝

  • 16-SSOP（0.154"，3.90mm 寬）

  • 16-QSOP

  • 管件

  • 4 個(gè)差分，單極

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