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ADS112C04IPWR
Texas Instruments
IC ADC 16BIT SIGMA-DELTA 16TSSOP
7903 Pcs New Original In Stock
16 Bit Analog to Digital Converter 4 Input 1 Sigma-Delta 16-TSSOP
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5.0 / 5.0
- (249 Ratings)
ADS112C04IPWR
Product Overview
1387233
DiGi Electronics Part Number
ADS112C04IPWR-DGManufacturer
Texas Instruments
ADS112C04IPWR
Description
IC ADC 16BIT SIGMA-DELTA 16TSSOPInventory
7903 Pcs New Original In Stock
16 Bit Analog to Digital Converter 4 Input 1 Sigma-Delta 16-TSSOP
Quantity
Minimum 1
Minimum 1
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ADS112C04IPWR Technical Specifications
Category
Data Acquisition, Analog to Digital Converters (ADC)
Packaging
Cut Tape (CT) & Digi-Reel®
Series
-
Product Status
Active
Number of Bits
16
Sampling Rate (Per Second)
2k
Number of Inputs
4
Input Type
Differential, Single Ended
Data Interface
I2C
Configuration
MUX-PGA-ADC
Ratio - S/H:ADC
0:1
Number of A/D Converters
1
Architecture
Sigma-Delta
Reference Type
External
Voltage - Supply, Analog
±2.5V, 2.3V ~ 5.5V
Voltage - Supply, Digital
2.3V ~ 5.5V
Features
PGA, Temperature Sensor
Operating Temperature
-40°C ~ 125°C
Package / Case
16-TSSOP (0.173", 4.40mm Width)
Supplier Device Package
16-TSSOP
Mounting Type
Surface Mount
Base Product Number
ADS112C04
Datasheet & Documents
Manufacturer Product Page
ADS112C04IPWR Specifications
HTML Datasheet
ADS112C04IPWR-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
ADS112C04IPWR-DG
296-50875-2
296-50875-1
296-50875-6
Standard Package
2,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
Their dedicated after-sales team provides comprehensive support, making maintenance easy.
de desembre 02, 2025
I've experienced minimal issues due to their high product standards and support.
de desembre 02, 2025
The packaging quality exceeded my expectations, sturdy and visually appealing at the same time.
de desembre 02, 2025
Their support staff is proactive and attentive to my needs.
de desembre 02, 2025
The quality of their products reflects their commitment to excellence.
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Frequently Asked Questions (FAQ)
What are the key design-in risks when integrating the ADS112C04IPWR in a noisy industrial sensor system with long cable runs?
When using the ADS112C04IPWR in noisy environments with long sensor cables, the primary risk is degradation of signal integrity due to EMI coupling into high-impedance inputs. The internal PGA in the ADS112C04IPWR can amplify both signal and noise if not properly conditioned at the front end. To mitigate this, always use differential inputs with matched PCB trace lengths and add RC filtering (e.g., 10Ω + 100nF) at each input pin close to the device. Shielded twisted-pair cables with guard traces driven by the REFP pin can further reduce leakage and noise. Additionally, ensure the reference voltage is low-noise and bypassed with a 10µF ceramic capacitor to maintain measurement accuracy under dynamic conditions.
How does the I2C interface on the ADS112C04IPWR impact real-time data acquisition in multi-device systems, and what are the practical latency considerations?
The ADS112C04IPWR uses an I2C interface with a maximum clock speed of 400kHz, which limits data throughput in high-channel or high-sample-rate applications. At 2kSPS full rate and 4 active channels, each conversion takes 500µs, but I2C readout of 16-bit data plus address overhead can take >100µs—creating potential buffer overlap risks if not managed. To avoid data loss, implement continuous conversion mode with DRDY monitoring via an interrupt pin rather than polling. For multi-device setups, assign unique I2C addresses using address pins (ADS112C04IPWR supports up to 4 combinations) and consider clock stretching compatibility with your microcontroller. Slower I2C bus speeds or high bus capacitance (>100pF) may require stronger pull-ups (e.g., 2.2kΩ) to maintain signal integrity.
Can the ADS112C04IPWR replace the ADS1115 in existing designs, and what are the critical compatibility differences affecting performance and PCB layout?
While the ADS112C04IPWR can serve as a functional upgrade to the ADS1115, key incompatibilities include I2C address overlap (both default to 0x48), pin count (16-TSSOP vs. 10-MSOP), and input multiplexer control. The ADS112C04IPWR offers better noise performance and integrated temperature sensing, but its larger package and ±2.5V analog supply tolerance require layout changes. Unlike the ADS1115, the ADS112C04IPWR lacks internal reference—requiring an external reference (e.g., REF5025) for precision, increasing BOM cost. Additionally, the ADS112C04IPWR’s programmable gain amplifier has lower maximum gain options (128V/V vs. 16V/V), meaning full-scale input ranges differ. Layout must account for analog-digital separation and grounding due to higher sensitivity in sigma-delta architecture.
What reliability concerns should be addressed when deploying the ADS112C04IPWR in automotive under-the-hood applications exposed to thermal cycling?
The ADS112C04IPWR is rated for -40°C to 125°C operation, making it suitable for under-the-hood use, but long-term reliability depends on proper PCB design and thermal management. The 16-TSSOP package has moderate thermal resistance (θJA ~ 100°C/W); sustained operation above 100°C junction temperature can accelerate electromigration. Use thermal vias under the exposed pad if available (though none required), and avoid placing near high-power components. Ensure conformal coating protects against condensation and contaminants. Also, verify that external reference and sensor excitation circuits maintain stability across temperature. The MSL 3 rating means if exposed to ambient humidity >60%, the device must be reflowed within 168 hours or baked per J-STD-033 to prevent popcorning during soldering.
What are the trade-offs between power consumption and measurement accuracy when configuring the PGA and data rate on the ADS112C04IPWR in a battery-powered remote monitoring system?
In battery-powered systems, optimizing the ADS112C04IPWR involves balancing active current (300µA typical at 2.3V), data rate, and PGA gain. Higher data rates (up to 2kSPS) increase throughput but reduce effective resolution due to fewer noise averaging cycles. Lowering the data rate to 20SPS improves SNR by 10dB, enabling smaller signals to be resolved without increasing gain. However, higher PGA gains (e.g., 64V/V or 128V/V) amplify sensor noise and offset errors, which may dominate in low-level thermocouple applications. Use duty-cycling (power-down between conversions) to extend battery life—wake via microcontroller GPIO, allow 50ms startup, then trigger one-shot conversion. Avoid continuous mode unless constant monitoring is essential to minimize average current.
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ADS112C04IPWR CAD Models
Texas Instruments ADS112C04IPWR PCB symbols & footprints
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