tmp03fruz-reel7 Analog Devices, Inc., tmp03fruz-reel7 Datasheet

no-image

tmp03fruz-reel7

Manufacturer Part Number
tmp03fruz-reel7
Description
Serial Digital Output Thermometers
Manufacturer
Analog Devices, Inc.
Datasheet
a
GENERAL DESCRIPTION
The TMP03/TMP04 are monolithic temperature detectors that
generate a modulated serial digital output that varies in direct
proportion to the temperature of the device. An onboard sensor
generates a voltage precisely proportional to absolute tempera-
ture which is compared to an internal voltage reference and
input to a precision digital modulator. The ratiometric encoding
format of the serial digital output is independent of the clock drift
errors common to most serial modulation techniques such as
voltage-to-frequency converters. Overall accuracy is ± 1.5°C
(typical) from –25°C to +100°C, with excellent transducer lin-
earity. The digital output of the TMP04 is CMOS/TTL
compatible, and is easily interfaced to the serial inputs of most
popular microprocessors. The open-collector output of the
TMP03 is capable of sinking 5 mA. The TMP03 is best suited
for systems requiring isolated circuits utilizing optocouplers or
isolation transformers.
The TMP03 and TMP04 are specified for operation at supply
voltages from 4.5 V to 7 V. Operating from 5 V, supply current
(unloaded) is less than 1.3 mA.
The TMP03/TMP04 are rated for operation over the –40°C to
+100°C temperature range in the low cost TO-92, SO-8, and
TSSOP-8 surface mount packages. Operation extends to 150°C
with reduced accuracy.
Patent pending.
(continued on page 4)
Serial Digital Output Thermometers
FUNCTIONAL BLOCK DIAGRAM
PACKAGE TYPES AVAILABLE
TMP03/TMP04
SO-8 and RU-8 (TSSOP)
D
GND
D
OUT
NC
V+
OUT
1
TEMPERATURE
D
MODULATOR
OUT
1
NC = NO CONNECT
SENSOR
TMP03/TMP04
1
2
3
4
DIGITAL
BOTTOM VIEW
TMP03/TMP04
(Not to Scale)
(Not to Scale)
TO-92
TOP VIEW
VPTAT
TMP03/
TMP04
V+
2
V+
2
GND
GND
3
V
3
REF
8
7
6
5
NC
NC
NC
NC

Related parts for tmp03fruz-reel7

tmp03fruz-reel7 Summary of contents

Page 1

GENERAL DESCRIPTION The TMP03/TMP04 are monolithic temperature detectors that generate a modulated serial digital output that varies in direct proportion to the temperature of the device. An onboard sensor generates a voltage precisely proportional to absolute tempera- ture which ...

Page 2

TMP03/TMP04–SPECIFICATIONS TMP03F ( –40 C ≤ T ≤ 100 C, unless otherwise noted.) A Parameter ACCURACY Temperature Error Temperature Linearity Long-Term Stability Nominal Mark-Space Ratio Nominal T1 Pulsewidth Power Supply Rejection Ratio OUTPUTS Output Low Voltage Output ...

Page 3

ABSOLUTE MAXIMUM RATINGS Maximum Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . 9 V Maximum Output Current (TMP03 D OUT Maximum ...

Page 4

TMP03/TMP04 (continued from page 1) The TMP03 is a powerful, complete temperature measurement system with digital output single chip. The onboard tem- perature sensor follows in the footsteps of the TMP01 low power programmable temperature controller, offering excellent ...

Page 5

Table I. Counter Size and Clock Frequency Effects on Quantization Error Maximum Count Available 4096 8192 16384 Optimizing Counter Characteristics Counter resolution, clock rate, and the resultant temperature decode error that occurs using a counter scheme may be deter- mined ...

Page 6

TMP03/TMP04–Typical Performance Characteristics –75 – TEMPERATURE – 10k LOAD –75 – ...

Page 7

RUNNING: SAMPLE 200MS EDGE SLOPE CH 1 +WIDTH s Wfm DOES NOT CROSS REF CH 1 –WIDTH s Wfm DOES NOT T = 125 C CROSS REF RISE s ...

Page 8

TMP03/TMP04 5 4 MAXIMUM LIMIT 10k 2 LOAD MEASUREMENTS IN STIRRED OIL BATH 1 TMP03 0 –1 TMP04 –2 –3 MINIMUM LIMIT –4 –5 –50 – TEMPERATURE – ...

Page 9

50mV 10k LOAD 0.5 NORMAL PSSR 0 –0.5 –1 100 10 1k 10k 100k 1 FREQUENCY – Hz 400 350 300 I = 5mA LOAD 250 200 150 100 ...

Page 10

TMP03/TMP04 APPLICATIONS INFORMATION Supply Bypassing Precision analog products, such as the TMP03, require a well- filtered power source. Since the TMP03 operate from a single 5 V supply, it seems convenient to simply tap into the digital logic power supply. ...

Page 11

V+ OPTO-COUPLER TMP03 D OUT GND 5V 10k 2N2907 OPTO-COUPLER 270 V+ TMP03 4.3k D OUT GND 5V 680 V+ TMP03 D OUT H11L1 GND The TMP03 and TMP04 are superior to analog-output trans- ducers for measuring temperature ...

Page 12

TMP03/TMP04 Software for the interface is shown in Listing 1. The program monitors the TMP04 output, and turns the counters on and off to measure the duty cycle. The time that the output is high is mea Test ...

Page 13

When the READ_TMP04 routine is called, the counter registers are cleared. The program sets the counters to their 16-bit mode, and then waits for the TMP04 output to go high. When the input port returns a logic high level, Timer ...

Page 14

TMP03/TMP04 Listing 2. Software Routine for the TMP04-to-ADSP-210x Interface ; { ADSP-21XX Temperature Measurement Routine Altered Registers: Return value: Computation time: } .MODULE/RAM/BOOT=0 TEMPERAT; .ENTRY TEMPMEAS; .CONST PRESCALER=4; .CONST TIMFULSCALE=0Xffff; TEMPMEAS: si=PRESCALER; sr0=TIMFULSCALE; dm(0x3FFB)=si; si=TIMFULSCALE; dm(0x3FFC)=si; dm(0x3FFD)=si; imask=0x01; TEST1: if ...

Page 15

74HC373 ...

Page 16

TMP03/TMP04 advantage in this application because it produces a linear tem- perature output while needing only one I/O pin and without requiring an A/D converter. FAST MICROPROCESSOR, DSP, ETC., IN PGA PACKAGE TMP04 IN SURFACE MOUNT PACKAGE Figure 13. Monitoring ...

Related keywords