AMC1305M25-Q1

Name: AMC1305M25-Q1
Brand: TI
SKU: AMC1305M25-Q1
Price: 4.48 USD

ACTIVE

Automotive, ±250-mV input, precision current sensing reinforced isolated modulator

Order now

Data sheet

document-pdfAcrobat AMC1305x-Q1 High-Precision, Reinforced Isolated Delta-Sigma Modulators datasheet PDF | HTML

AMC1305M25-Q1

ACTIVE

Data sheet

Order now

Product details

Device type

Current sensing

Peak-to-peak input voltage range (V)

250mV

Interface type

Serial CMOS

Sample rate (max) (Msps)

20

Rating

Automotive

CMTI (min) (kV/µs)

15

Number of input channels

1

Architecture

Delta-Sigma

SNR (dB)

85

Operating temperature range (°C)

-40 to 125

Power consumption (typ) (mW)

36.1

SFDR (dB)

92

Isolation rating

Reinforced

Withstand isolation voltage (VISO) (Vrms)

5000

Working isolation voltage (VIOWM) (Vrms)

1500

Transient isolation voltage (VIOTM) (VPK)

7

Creepage (min) (mm)

8.5

Clearance (min) (mm)

8.5

Device type

Current sensing

Peak-to-peak input voltage range (V)

250mV

Interface type

Serial CMOS

Sample rate (max) (Msps)

20

Rating

Automotive

CMTI (min) (kV/µs)

15

Number of input channels

1

Architecture

Delta-Sigma

SNR (dB)

85

Operating temperature range (°C)

-40 to 125

Power consumption (typ) (mW)

36.1

SFDR (dB)

92

Isolation rating

Reinforced

Withstand isolation voltage (VISO) (Vrms)

5000

Working isolation voltage (VIOWM) (Vrms)

1500

Transient isolation voltage (VIOTM) (VPK)

7

Creepage (min) (mm)

8.5

Clearance (min) (mm)

8.5

SOIC (DW)

16

106.09 mm² 10.3 x 10.3

Qualified for Automotive Applications
AEC-Q100 Qualified with the Following Results:
- Temperature Grade 1: –40°C to +125°C
- HBM ESD Classification Level 2
- CDM ESD Classification Level C6
Pin-Compatible Family With:
- ±50-mV or ±250-mV Input Voltage Ranges
- CMOS or LVDS Digital Interface Options
Excellent DC Performance:
- Offset Error: ±50 µV or ±150 µV (max)
- Offset Drift: 1.3 µV/°C (max)
- Gain Error: ±0.3% (max)
- Gain Drift: ±40 ppm/°C (max)
Safety-Related Certifications:
- 7000-V_PK Reinforced Isolation per DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12
- 5000-V_RMS Isolation for 1 Minute per UL1577
- CAN/CSA No. 5A-Component Acceptance Service Notice
Transient Immunity: 15 kV/µs (min)
High Electromagnetic Field Immunity
(see Application Note SLLA181A)
External 5-MHz to 20-MHz Clock Input

Qualified for Automotive Applications
AEC-Q100 Qualified with the Following Results:
- Temperature Grade 1: –40°C to +125°C
- HBM ESD Classification Level 2
- CDM ESD Classification Level C6
Pin-Compatible Family With:
- ±50-mV or ±250-mV Input Voltage Ranges
- CMOS or LVDS Digital Interface Options
Excellent DC Performance:
- Offset Error: ±50 µV or ±150 µV (max)
- Offset Drift: 1.3 µV/°C (max)
- Gain Error: ±0.3% (max)
- Gain Drift: ±40 ppm/°C (max)
Safety-Related Certifications:
- 7000-V_PK Reinforced Isolation per DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12
- 5000-V_RMS Isolation for 1 Minute per UL1577
- CAN/CSA No. 5A-Component Acceptance Service Notice
Transient Immunity: 15 kV/µs (min)
High Electromagnetic Field Immunity
(see Application Note SLLA181A)
External 5-MHz to 20-MHz Clock Input

The AMC1305-Q1 device is a precision, delta-sigma (ΔΣ) modulator with the output separated from the input circuitry by a capacitive double isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide reinforced isolation of up to 7000 V_PEAK according to the DIN V VDE V 0884-10, UL1577, and CSA standards. Used in conjunction with isolated power supplies, the device prevents noise currents on a high common-mode voltage line from entering the local system ground and interfering with or damaging low voltage circuitry.

The AMC1305-Q1 is optimized for direct connection to shunt resistors or other low voltage level signal sources and supports excellent dc and ac performance. Shunt resistors are typically used to sense currents in traction inverters, onboard chargers, or other such automotive applications. By using an appropriate digital filter (that is, as integrated on the TMS320F2837x) to decimate the bit stream, the device can achieve 16 bits of resolution with a dynamic range of 85 dB (13.8 ENOB) at a data rate of 78 kSPS.

On the high-side, the modulator is supplied with a nominal voltage of 5 V (AVDD), whereas the isolated digital interface operates from a 3.3-V or 5-V power supply (DVDD).

The AMC1305-Q1 is available in a wide-body SOIC-16 (DW) package.

The AMC1305-Q1 device is a precision, delta-sigma (ΔΣ) modulator with the output separated from the input circuitry by a capacitive double isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide reinforced isolation of up to 7000 V_PEAK according to the DIN V VDE V 0884-10, UL1577, and CSA standards. Used in conjunction with isolated power supplies, the device prevents noise currents on a high common-mode voltage line from entering the local system ground and interfering with or damaging low voltage circuitry.

The AMC1305-Q1 is optimized for direct connection to shunt resistors or other low voltage level signal sources and supports excellent dc and ac performance. Shunt resistors are typically used to sense currents in traction inverters, onboard chargers, or other such automotive applications. By using an appropriate digital filter (that is, as integrated on the TMS320F2837x) to decimate the bit stream, the device can achieve 16 bits of resolution with a dynamic range of 85 dB (13.8 ENOB) at a data rate of 78 kSPS.

On the high-side, the modulator is supplied with a nominal voltage of 5 V (AVDD), whereas the isolated digital interface operates from a 3.3-V or 5-V power supply (DVDD).

The AMC1305-Q1 is available in a wide-body SOIC-16 (DW) package.

open-in-new

Find other Isolated ADCs

Download View video with transcript Video

Technical documentation

star

=Top documentation for this product selected by TI

No results found. Please clear your search and try again.

View all 15

	Type	Title		Date
*	Data sheet	AMC1305x-Q1 High-Precision, Reinforced Isolated Delta-Sigma Modulators datasheet	PDF \| HTML	09 Feb 2017
	Application note	Shunt Resistor Selection for Isolated Data Converters	PDF \| HTML	04 May 2023
	Application note	Digital Filter Types in Delta-Sigma ADCs (Rev. A)	PDF \| HTML	29 Mar 2023
	Application note	Comparing shunt- and hall-based isolated current-sensing solutions in HEV/EV (Rev. C)	PDF \| HTML	28 Mar 2023
	Certificate	UL Certificate of Compliance Vol4 Sec5 E181974 (Rev. A)		23 Jan 2023
	Certificate	VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. R)		12 Jul 2022
	White paper	Addressing high-voltage design challenges with reliable and affordable isolation (Rev. A)	PDF \| HTML	06 Jun 2022
	White paper	以可靠且經濟實惠的隔離技術解決高電壓設計難題 (Rev. A)	PDF \| HTML	06 Jun 2022
	White paper	높 은 신뢰도와 합리적인 가격대의 절연 기술 개발과 관련한 고전압 설계 문 제의 해결.. (Rev. A)	PDF \| HTML	06 Jun 2022
	White paper	Comparing shunt- and Hall-based current-sensing solutions in onboard chargers an (Rev. A)		19 Mar 2019
	White paper	Comparing isolated amplifiers and isolated modulators (Rev. A)		28 Feb 2019
	Technical article	Get cerTIfied, not certi-FRIED! Electromagnetic compatibility testing explained (Part 4)		06 Feb 2015
	Technical article	Using delta-sigma modulators for isolated high-voltage measurements		09 Jan 2015
	Technical article	Part III: Get CerTIfied, not certi-FRIED! Electromagnetic compatibility testing explained		02 Dec 2014
	EVM User's guide	AMC1305xxEVM User's Guide		22 Sep 2014

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

AMC1305M25EVM — AMC1305M25 evaluation module for reinforced isolated modulator with ±250-mV input

The AMC1305M25 is an isolated single-channel delta-sigma (ΔΣ) modulator used in high-resolution measurement applications including current monitoring, industrial process control, and motor positioning systems. AMC1305M25 evaluation module (EVM) is a small-form-factor board containing (...)

User guide: PDF