Datasheet > AMC1204QDWRQ1

AMC1204QDWRQ1

更新时间： 2024-11-05 01:13:39

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
33页	988K
描述
20 MHz, Second-Order, Isolated Delta-Sigma Modulator for Current-Shunt Measurement

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AMC1204QDWRQ1 数据手册

AMC1204-Q1

www.ti.com

SLAS886B –JULY 2012–REVISED JANUARY 2013

20 MHz, Second-Order, Isolated Delta-Sigma Modulator

for Current-Shunt Measurement

Check for Samples: AMC1204-Q1

FEATURES

DESCRIPTION

The AMC1204-Q1 is a 1-bit digital output, isolated

•

Qualified for Automotive Applications

delta-sigma (ΔΣ) modulators that can be clocked at

up to 20 MHz. The digital isolation of the modulator

output is provided by a silicon dioxide (SiO₂) barrier

that is highly resistant to magnetic interference. This

barrier has been certified to provide basic galvanic

isolation of up to 4250 V_PEAKaccording to UL1577,

IEC60747-5-2, and CSA standards or specifications.

AEC-Q100 Qualified With the Following

Results

–

Device Temperature Grade 1: –40°C to

125°C Ambient Operating Temperature

Range

–

Device HBM ESD Classification Level H2

Device CDM ESD Classification Level C3B

The AMC1204-Q1 provides a single-chip solution for

measuring the small signal of a shunt resistor across

an isolated barrier. These types of resistors are

typically used to sense currents in motor control

inverters, green energy generation systems, and

other industrial applications. The AMC1204-Q1

differential inputs easily connect to the shunt resistor

or other low-level signal sources. An internal

reference eliminates the need for external

components. When used with an appropriate external

digital filter, an effective number of bits (ENOB) of 14

is achieved at a data rate of 78 kSPS.

•

±250-mV Input Voltage Range Optimized for

Shunt Resistors

Certified Digital Isolation:

–

CSA, IEC60747-5-2, and UL1577 Approved

Isolation Voltage: 4250 V_PEAK

Working Voltage: 1200 V_PEAK

Transient Immunity: 15 kV/µs

•

Long Isolation Barrier Lifetime (see

Application Report SLLA197)

5-V analog supply (AVDD) is used by the

High Electromagnetic Field Immunity

(see Application Note SLLA181A)

modulator while the isolated digital interface operates

from a 3-V, 3.3-V, or 5-V supply (DVDD). The

AMC1204-Q1 is available in SO-16 (DW) packages

and are specified from –40°C to 125°C.

Outstanding AC Performance:

–

SNR: 84 dB (min)

THD: –80 dB (max)

AVDD

DVDD

•

Excellent DC Precision:

–

INL: ±8 LSB (max)

VINP

VINN

DATA

Gain Error: ±2.5% (max)

Modulator

•

External Clock Input for Easier

Synchronization

2.5V

Ref

CLKIN

Fully Specified Over the Extended Automotive

Temperature Range

APPLICATION

AGND

DGND

•

Shunt Resistor Based Current Sensing in:

–

Motor Control

Green Energy

Inverter Applications

Uninterruptible Power Supplies

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...33

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AMC1204QDWRQ1 替代型号

型号	品牌	替代类型	描述	数据表
AMC1204DWR	TI	完全替代	20MHz, Second-Order, Isolated Delta-Sigma Modulator for Current-Shunt Measurement
AMC1204BDWR	TI	类似代替	20MHz, Second-Order, Isolated Delta-Sigma Modulator for Current-Shunt Measurement

与AMC1204QDWRQ1相关器件

型号	品牌	获取价格	描述	数据表
AMC1210	TI	获取价格	Full-featured evaluation module
AMC1210	BB	获取价格	Quad Digital Filter for 2nd-Order Delta-Sigma Modulator
AMC1210_14	TI	获取价格	Quad Digital Filter for 2nd-Order Delta-Sigma Modulator
AMC1210IRHAR	BB	获取价格	Quad Digital Filter for 2nd-Order Delta-Sigma Modulator
AMC1210IRHAR	TI	获取价格	适用于 Δ-Σ 调制器的 4 通道数字滤波器 \| RHA \| 40 \| -4
AMC1210IRHARG4	BB	获取价格	Quad Digital Filter for 2nd-Order Delta-Sigma Modulator
AMC1210IRHAT	BB	获取价格	Quad Digital Filter for 2nd-Order Delta-Sigma Modulator
AMC1210IRHAT	TI	获取价格	适用于 Δ-Σ 调制器的 4 通道数字滤波器 \| RHA \| 40 \| -4
AMC1210IRHATG4	BB	获取价格	Quad Digital Filter for 2nd-Order Delta-Sigma Modulator
AMC1211AQDWVQ1	TI	获取价格	2V 输入、精密电压检测基本隔离式放大器 \| DWV \| 8 \| -40 t

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