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TS1005 데이터시트 PDF




Touchstone Semiconductor에서 제조한 전자 부품 TS1005은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

PDF 형식의 TS1005 자료 제공

부품번호 TS1005 기능
기능 RAIL-TO-RAIL SINGLE OP AMP
제조업체 Touchstone Semiconductor
로고 Touchstone Semiconductor 로고


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TS1005 데이터시트, 핀배열, 회로
TS1005
A 0.8V TO 5.5V, 1.3µA, 20kHz RAIL-TO-RAIL SINGLE OP AMP
FEATURES
Single 0.8V to 5.5V Operation
Supply current: 1.3μA (typ)
Input Bias Current: 2pA (typ)
Low TCVOS: 9µV/°C (typ)
AVOL Driving 100kΩ Load: 90dB (min)
Gain-Bandwidth Product: 20kHz
Unity Gain Stable
Rail-to-rail Input and Output
No Output Phase Reversal
5-pin SC70 Package
APPLICATIONS
Battery/Solar-Powered Instrumentation
Portable Gas Monitors
Low-voltage Signal Processing
Micropower Active Filters
Wireless Remote Sensors
Battery-powered Industrial Sensors
Active RFID Readers
Powerline or Battery Current Sensing
Handheld/Portable POS Terminals
DESCRIPTION
The TS1005 is a 1.3µA supply current, precision
CMOS operational amplifier designed to operate over
a supply voltage range from 0.8V to 5.5V with a
GBWP of 20kHz. Fully specified at 1.8V, the TS1005
is optimized for ultra-long-life battery-powered
applications. The TS1005 is Touchstone’s fifth
operational amplifier in the “NanoWatt Analog™”
high-performance analog integrated circuits portfolio.
The TS1005 exhibits a typical input bias current of
2pA, and rail-to-rail input and output stages. The
TS1005 can operate from single-supply voltages from
0.8V to 5.5V.
The TS1005’s combined features make it an excellent
choice in applications where very low supply current
and low operating supply voltage translate into very
long equipment operating time. Applications include:
micropower active filters, wireless remote sensors,
battery and powerline current sensors, portable gas
monitors, and handheld/portable POS terminals.
The TS1005 is fully specified over the industrial
temperature range (−40°C to +85°C) and is available
in a PCB-space saving 5-lead package.
http://www.DataSheet4U.net/
TYPICAL APPLICATION CIRCUIT
A MicroWatt 2-Pole Sallen Key Low Pass Filter
30%
Supply Current Distribution
VDD = 1.8V
25%
20%
15%
10%
Patent(s) Pending
NanoWatt Analog and the Touchstone Semiconductor logo are registered
trademarks of Touchstone Semiconductor, Incorporated.
5%
0%
1.15
1.2 1.25
1.3 1.35
Supply Current - µA
TS1005DS r1p0
Page 1
RTFDS
datasheet pdf - http://www.DataSheet4U.net/




TS1005 pdf, 반도체, 판매, 대치품
TS1005
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current vs Supply Voltage
Supply Current vs Input Common-Mode Voltage
1.5 1.5
TA = +25°C
+85°C
1.4
+25°C
1.3
-40°C
1.4
1.3
1.2
1.2
1.1
1.1
0.8
1.6 2.4 3.1 3.9 4.7
SUPPLY VOLTAGE - Volt
5.5
1.0
0
0.6 1.2
1.8
INPUT COMMON-MODE VOLTAGE - Volt
Supply Current vs Input Common-Mode Voltage
1.5
TA = +25°C
1.4
1.3
1.2
1.1
1.0
0
1.1 2.2 3.3 4.4 5.5
INPUT COMMON-MODE VOLTAGE - Volt
Input Offset Voltage vs Supply Voltage
2.5
1.25
VINCM = 0V
http://www.DataSheet4U.net/
0
VINCM = VDD
1.25
TA = +25°C
-2.5
0.8 1.6 2.4 3.1 3.9
4.7
SUPPLY VOLTAGE - Volt
5.5
Input Offset Voltage vs Input Common-Mode Voltage
0.7
Input Offset Voltage vs Input Common-Mode Voltage
0.9
0.35 0.45
00
-0.35
VDD =1.8V
-0.7 TA = +25°C
0 0.6 1.2 1.8
INPUT COMMON-MODE VOLTAGE - Volt
TS1005DS r1p0
-0.45
VDD = 5.5V
TA = +25°C
-0.9
0 1.1 2.2 3.3 4.4 5.5
INPUT COMMON-MODE VOLTAGE - Volt
Page 4
RTFDS
datasheet pdf - http://www.DataSheet4U.net/

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TS1005 전자부품, 판매, 대치품
PIN FUNCTIONS
TS1005
Pin Label Function
1 OUT Amplifier Output.
2
VSS
Negative Supply or Analog GND. If applying a negative voltage to
this pin, connect a 0.1µF capacitor from this pin to analog GND.
3 +IN Amplifier Non-inverting Input.
4 -IN Amplifier Inverting Input.
5
VDD
Positive Supply Connection. Connect a 0.1µF bypass capacitor
from this pin to analog GND.
THEORY OF OPERATION
The TS1005 is fully functional for an input signal
from the negative supply (VSS or GND) to the
positive supply (VDD). The input stage consists of two
differential amplifiers, a p-channel CMOS stage and
an n-channel CMOS stage that are active over
different ranges of the input common mode voltage.
The p-channel input pair is active for input common
mode voltages, VINCM, between the negative supply
to approximately 0.4V below the positive supply. As
the common-mode input voltage moves closer
towards VDD, an internal current mirror activates the
n-channel input pair differential pair. The p-channel
input pair becomes inactive for the balance of the
input common mode voltage range up to the positive
supply. Because both input stages have their own
offset voltage (VOS) characteristic, the offset voltage
of the TS1005 is a function of the applied input
common-mode voltage, VINCM. The VOS has a
crossover point at ~0.4V from VDD (Refer to the VOS
vs. VCM curve in the Typical Operating
Characteristics section). Caution should be taken in
applications where the input signal amplitude is
comparable to the TS1005’s VOS value and/or the
design requires high accuracy. In these situations, it
is necessary for the input signal to avoid the
crossover point. In addition, amplifier parameters
such as PSRR and CMRR which involve the input
offset voltage will also be affected by changes in the
input common-mode voltage across the differential
pair transition region.
The second stage is a folded-cascode transistor
arrangement that converts the input stage
differential signals into a single-ended output. A
complementary drive generator supplies current to
the output transistors that swing rail to rail.
The TS1005 output stages voltage swings withinhttp://www.DataSheet4U.net/
3.5mV from the rails at 1.8V supply when driving an
output load of 100kΩ - which provides the maximum
possible dynamic range at the output. This is
particularly important when operating on low supply
voltages. When driving a stiffer 10kΩ load, the
TS1005 swings within 30mV of VDD and within 13mV
of VSS (or GND).
APPLICATIONS INFORMATION
Portable Gas Detection Sensor Amplifier
Gas sensors are used in many different industrial
and medical applications. Gas sensors generate a
current that is proportional to the percentage of a
particular gas concentration sensed in an air
sample. This output current flows through a load
resistor and the resultant voltage drop is amplified.
Depending on the sensed gas and sensitivity of the
sensor, the output current can be in the range of
tens of microamperes to a few milliamperes. Gas
sensor datasheets often specify a recommended
TS1005DS r1p0
load resistor value or a range of load resistors from
which to choose.
There are two main applications for oxygen sensors
applications which sense oxygen when it is
abundantly present (that is, in air or near an oxygen
tank) and those which detect traces of oxygen in
parts-per-million concentration. In medical
applications, oxygen sensors are used when air
quality or oxygen delivered to a patient needs to be
monitored. In fresh air, the concentration of oxygen
is 20.9% and air samples containing less than 18%
oxygen are considered dangerous. In industrial
applications, oxygen sensors are used to detect the
Page 7
RTFDS
datasheet pdf - http://www.DataSheet4U.net/

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