參數(shù)資料
型號： TC7109ACLWR
元件分類： ADC
英文描述： 1-CH 12-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PQCC44
封裝： PLASTIC, LCC-44
文件頁數(shù)： 1/28頁
文件大?。?/td> 598K
代理商： TC7109ACLWR
2002 Microchip Technology Inc.
DS21456B-page 1
TC7109/A
Features
Zero Integrator Cycle for Fast Recovery from
Input Overloads
Eliminates Cross-Talk in Multiplexed Systems
12-Bit Plus Sign Integrating A/D Converter with
Over Range Indication
Sign Magnitude Coding Format
True Differential Signal Input and Differential
Reference Input
Low Noise: 15
VP-P Typ.
Input Current: 1pA Typ.
No Zero Adjustment needed
TTL Compatible, Byte Organized Tri-State
Outputs
UART Handshake Mode for simple Serial Data
Transmissions
Device Selection Table
*The “A” version has a higher IOUT on the digital lines.
General Description
The TC7109A is a 12-bit plus sign, CMOS low power
analog-to-digital converter (ADC). Only eight passive
components and a crystal are required to form a
complete dual slope integrating ADC.
TheimprovedVOH source current and other TC7109A
features make it an attractive per-channel alternative to
analog multiplexing for many data acquisition applica-
tions. These features include typical input bias current
of 1pA, drift of less than 1
V/°C, input noise typically
15
VP-P, and auto-zero. True differential input and ref-
erence allow measurement of bridge type transducers,
such as load cells, strain gauges, and temperature
transducers.
The TC7109A provides a versatile digital interface. In
the Direct mode, chip select and HIGH/LOW byte
enable control parallel bus interface. In the Handshake
mode, the TC7109A will operate with industry standard
UARTs in controlling serial data transmission – ideal for
remote data logging. Control and monitoring of conver-
sion timing is provided by the RUN/HOLD input and
STATUS output.
For applications requiring more resolution, see the
TC500, 15-bit plus sign ADC data sheet. The TC7109A
has improved over range recovery performance and
higher output drive capability than the original TC7109.
All new (or existing) designs should specify the
TC7109A wherever possible.
Part Number
(TC7109X)*
Package
Temperature
Range
TC7109CKW
44-Pin PQFP
0°C to +70°C
TC7109CLW
44-Pin PLCC
0°C to +70°C
TC7109CPL
40-Pin PDIP
0°C to +70°C
TC7109IJL
40-Pin CERDIP
-25°C to +85°C
12-Bit
A-Compatible Analog-to-Digital Converters
相關(guān)PDF資料
PDF描述
TC7109ACKW 1-CH 12-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PQFP44
TC7109ACLW 1-CH 12-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PQCC44
TC7109IJL 1-CH 12-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, CDIP40
TC7109ACKW713 1-CH 12-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PQFP44
TC7109ACPLG 1-CH 12-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PDIP40
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TC7109ACPL 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 13 Bit Fast Recovery RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
TC7109AIJL 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 13 Bit Fast Recovery RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
TC7109CKW 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 13 Bit Fast Recovery RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
TC7109CKW713 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 13 Bit Fast Recovery RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
TC7109CLW 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 13 Bit Fast Recovery RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
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