Overview
The AMC1336-Q1, produced by Texas Instruments, is a precision, delta-sigma (ΔΣ) modulator designed for high-performance voltage sensing in automotive applications. This device features a reinforced isolated architecture, ensuring robust protection against high-voltage and magnetic interference. The AMC1336-Q1 is AEC-Q100 qualified, making it suitable for use in harsh automotive environments. It operates over an extended industrial temperature range of –40°C to +125°C, enhancing its reliability in various conditions.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Device type | Voltage sensing | Peak-to-peak input voltage range (V) | ±1 V |
| Interface type | Serial CMOS | Sample rate (max) (Msps) | 21 |
| Rating | Automotive | CMTI (min) (kV/µs) | 80 |
| Number of input channels | 1 | Architecture | Delta-Sigma |
| SNR (dB) | 87 | Operating temperature range (°C) | –40 to 125 |
| Power consumption (typ) (mW) | 33.7 | SFDR (dB) | 92 |
| Isolation rating | Reinforced | Withstand isolation voltage (VISO) (Vrms) | 5700 |
| Working isolation voltage (VIOWM) (Vrms) | 1500 | Transient isolation voltage (VIOTM) (VPK) | 8000 |
| Creepage (min) (mm) | 8.5 |
Key Features
- AEC-Q100 Qualified: Suitable for automotive applications with a temperature grade 1: –40°C to 125°C.
- Input Structure: Optimized for voltage measurements with an input voltage range of ±1 V and high input resistance of 1.5 GΩ (typ).
- DC Performance: Excellent DC performance with offset error of ±0.5 mV (max), offset drift of ±4 µV/°C (max), gain error of ±0.2% (max), and gain drift of ±40 ppm/°C (max).
- Isolation and Safety: Reinforced isolation of up to 8000 V PEAK according to DIN VDE V 0884-11 and UL1577 standards. Compliant with IEC 62368-1 end equipment standard.
- Transient Immunity: High transient immunity of 115 kV/µs (typ).
- Power Supply: High-side supply from 3.3-V or 5-V, and isolated digital interface from 3.0-V, 3.3-V, or 5-V.
- Resolution and Dynamic Range: Achieves 16 bits of resolution with a dynamic range of 87 dB at a data rate of 82 kSPS when used with a digital filter.
Applications
The AMC1336-Q1 is primarily designed for advanced data acquisition in automotive systems, particularly for voltage sensing in high-voltage applications. It is suitable for use in various automotive environments due to its robust isolation and wide temperature range. Key applications include:
- Automotive voltage sensing
- High-voltage measurement systems
- Isolated data acquisition systems
- Systems requiring high precision and isolation
Q & A
- What is the input voltage range of the AMC1336-Q1?
The input voltage range is ±1 V.
- What is the isolation rating of the AMC1336-Q1?
The AMC1336-Q1 has a reinforced isolation rating of up to 8000 V PEAK.
- What is the operating temperature range of the AMC1336-Q1?
The operating temperature range is –40°C to 125°C.
- What is the maximum sample rate of the AMC1336-Q1?
The maximum sample rate is 21 Msps.
- Is the AMC1336-Q1 AEC-Q100 qualified?
Yes, the AMC1336-Q1 is AEC-Q100 qualified for automotive applications.
- What is the typical power consumption of the AMC1336-Q1?
The typical power consumption is 33.7 mW.
- What is the signal-to-noise ratio (SNR) of the AMC1336-Q1?
The SNR is 87 dB.
- Can the AMC1336-Q1 be used with different power supplies?
Yes, it can be supplied by 3.3-V or 5-V on the high side and 3.0-V, 3.3-V, or 5-V for the isolated digital interface.
- What is the resolution and dynamic range when used with a digital filter?
It achieves 16 bits of resolution with a dynamic range of 87 dB at a data rate of 82 kSPS.
- Is the AMC1336-Q1 compliant with any safety standards?
Yes, it is compliant with IEC 62368-1 and has safety-related certifications such as DIN VDE V 0884-11 and UL1577.
