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Texas Instruments ADS7960SRHBT
- Part No.:
- ADS7960SRHBT
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
ADS7960SRHBT.pdf
- Description:
- IC ADC 8BIT SAR 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:182
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Product details
Overview
ADS7960SRHBT from Texas Instruments is a 12-bit, 16-channel, single-ended SAR analog-to-digital converter with 1-MSPS sample rate, zero-latency operation, and 20-MHz serial interface. It features two software-selectable unipolar input ranges (0 to VREF and 0 to 2 × VREF), programmable per-channel high/low alarm thresholds, and operates from 2.7–5.25 V analog supply. It is used in high-speed PLC data acquisition systems requiring precise multi-channel monitoring.
For engineers reviewing the ADS7960SRHBT datasheet, ADS7960SRHBT pinout, ADS7960SRHBT application, or ADS7960SRHBT equivalent, key selection considerations include its 16-channel count, 12-bit resolution, TSSOP-38 package footprint, GPIO-configurable alarm outputs, and compatibility with REF5025 reference voltage sources in isolated industrial signal chains.
Technical Context
The ADS7960SRHBT implements a capacitor-based SAR architecture with integrated sample-and-hold, enabling true zero-latency conversion. Its serial interface uses active-low CS for sampling initiation and SCLK for synchronous data transfer, supporting both auto-sequencing across preselected channels and manual channel selection per conversion cycle.
It supports dual I/O supply domains: +VA (2.7–5.25 V) for analog circuitry and +VBD (1.7–5.25 V) for digital logic, allowing glueless interfacing with diverse microcontrollers and DSPs. Four GPIOs (GPIO0–GPIO3) are available in the TSSOP-38 package, with GPIO2 serving as Range select and GPIO3 as active-low power-down control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - delivers 1 LSB = VREF/4096 quantization step for precision measurement applications |
| Sample Rate | 1 MSPS - enables real-time capture of signals up to 500 kHz (Nyquist-limited) without aliasing |
| Analog Supply | 2.7 V to 5.25 V - supports direct connection to common industrial rails including 3.3 V and 5 V systems |
| I/O Supply Range | 1.7 V to 5.25 V - permits interoperability with low-voltage logic families (e.g., 1.8 V, 3.3 V) without level shifters |
| Input Ranges | 0 to VREF or 0 to 2 × VREF - selectable per device via GPIO2, enabling flexible full-scale optimization |
| Power Dissipation | 14.5 mW at 1 MSPS (+VA = 5 V, +VBD = 3 V) - suitable for thermally constrained industrial modules |
| Power-Down Current | 1 µA - reduces system standby power in battery-backed or energy-sensitive monitoring nodes |
| Input Bandwidth | 47 MHz at 3 dB - preserves signal integrity for fast transients and high-frequency sensor outputs |
Pinout & Package
The ADS7960SRHBT is housed in a 38-pin TSSOP package (9.70 mm × 4.40 mm body size) with exposed thermal pad. Pin functions are validated per TI SLAS605C Rev C datasheet, Table 7 (Pin Functions: TSSOP Packages).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH0–CH15 | Analog input | 16 single-ended analog input channels routed through internal multiplexer to AINP |
| AINP / AINM | Differential ADC input pair | Primary analog input path; AINM serves as reference ground for pseudo-differential configurations |
| MXO | Analog output | Multiplexer output node - connects selected channel to ADC front-end; requires external buffer (e.g., THS4031) if driving high-Z loads |
| REFP / REFM | Analog reference inputs | Accept external reference (e.g., REF5025); REFP = reference voltage, REFM = reference ground |
| CS / SCLK / SDI / SDO | Digital serial interface | 4-wire SPI-compatible interface; CS active-low initiates sampling on falling edge |
| GPIO0–GPIO3 | Programmable digital I/O | GPIO2 selects input range (1 = 0–2×VREF, 0 = 0–VREF); GPIO3 = active-low PD; GPIO0/GPIO1 = alarm outputs |
| +VA / AGND / +VBD / BDGND | Power and ground | Separate analog/digital supplies reduce noise coupling; AGND and BDGND must be connected at single point |
Key Features
| Feature | Design Value |
|---|---|
| Zero-latency conversion | Eliminates pipeline delay - critical for closed-loop control where immediate feedback is required |
| Two programmable alarm levels per channel | Enables autonomous over/under-range detection without host CPU intervention, reducing polling overhead |
| Auto-sequencing mode | Supports continuous round-robin scanning of up to 16 channels - ideal for synchronized multi-sensor monitoring |
| Wide analog input bandwidth (47 MHz) | Preserves fidelity of fast-rising sensor signals (e.g., current shunt transients, optical detector pulses) |
| Glueless digital interface | 1.7–5.25 V I/O supply range allows direct connection to FPGAs, ARM Cortex-M, and DSPs without level translation |
| Low-power power-down mode | 1 µA quiescent current extends battery life in portable test equipment and remote sensor nodes |
Applications
| PLC Analog Input Module | Optical Line Card Monitoring |
|---|---|
|
Use Scenario: Simultaneous acquisition of 16 voltage/current sensor outputs in modular industrial PLC backplanes. IC Role / Device Role / Timing Role: Primary ADC for analog input expansion cards, performing synchronized sampling under RTOS-driven DMA transfers. Use Value: 1-MSPS throughput ensures sub-millisecond scan times across all 16 channels, meeting IEC 61131-3 cycle time requirements. |
Use Scenario: Real-time monitoring of laser bias current, photodiode output, and temperature sensors on telecom line cards. IC Role / Device Role / Timing Role: Multi-channel front-end digitizer interfaced to FPGA for adaptive power control loop closure. Use Value: Programmable per-channel alarms trigger immediate optical power adjustment before BER degradation occurs. |
| Medical Patient Monitor Front-End | Digital Power Supply Telemetry |
|
Use Scenario: Acquisition of ECG leads, respiration, SpO₂, and NIBP pressure waveforms in portable bedside monitors. IC Role / Device Role / Timing Role: Central SAR ADC with zero latency, feeding data to low-latency safety-critical processing cores. Use Value: 12-bit resolution and 47 MHz input bandwidth preserve diagnostic waveform fidelity, including QRS complex morphology. |
Use Scenario: In-system telemetry of rail voltages, phase currents, and thermal sensors in multi-phase VRMs and AC-DC PSUs. IC Role / Device Role / Timing Role: Embedded ADC for digital power management ICs (e.g., TI UCD3138) to enable adaptive loop compensation. Use Value: Auto-sequencing mode captures correlated voltage/current samples across phases without timing skew. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multichannel SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7952SRHBT | 12-bit, 12-channel variant in same 38-pin TSSOP package; identical timing, alarm, and GPIO functionality | Fewer channels reduce PCB routing complexity in space-constrained modules with ≤12 sensor inputs | Select when channel count can be reduced without sacrificing system coverage or redundancy |
| ADS8688IPWR | 16-bit, 8-channel SAR ADC with integrated PGA and reference; 500 kSPS max; 28-pin TSSOP | Higher resolution but lower channel count and sample rate; includes on-chip programmable gain amplifier | Choose when precision > speed (e.g., strain gauge or RTD measurements), accepting trade-off in channel density |
Compared with ADS7952SRHBT and ADS8688IPWR, the ADS7960SRHBT uniquely balances 16-channel count, 12-bit resolution, and 1-MSPS throughput in a pin-compatible family - making it optimal for high-density industrial DAQ where channel scalability and deterministic latency are co-prioritized.
Availability
ADS7960SRHBT is available at Aetrix Electronics and suitable for PLC/IPC systems, optical line card monitoring, and medical instrumentation requiring stable component supply across long production lifecycles.
Supply support for ADS7960SRHBT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies for industrial, automotive, and communications markets.
The ADS79xx product line was designed specifically for high-channel-count, medium-speed industrial data acquisition - emphasizing pin compatibility across resolutions and channel counts to simplify platform reuse and reduce design risk.
FAQ
What is the maximum sampling rate supported by the ADS7960SRHBT?
The ADS7960SRHBT supports a maximum sampling rate of 1 million samples per second (1 MSPS). This rate is achievable across all 16 channels in auto-sequencing mode, with each conversion completing within 1 µs. The device maintains specified AC performance (e.g., SNR, THD) at this rate when operated within recommended supply and reference conditions per the SLAS605C datasheet.
Does the ADS7960SRHBT require an external reference voltage?
Yes, the ADS7960SRHBT requires an external reference voltage applied to the REFP pin, with REFM serving as reference ground. It is commonly paired with the REF5025 (2.5 V ±0.1 V), but supports any stable reference between 2.0 V and 3.0 V. The device does not include an internal reference, and operation without an external reference will result in undefined conversion results.
How many GPIO pins are available on the ADS7960SRHBT, and what are their functions?
The ADS7960SRHBT provides four GPIO pins (GPIO0–GPIO3) in its 38-pin TSSOP package. GPIO2 selects input range (high = 0–2×VREF, low = 0–VREF); GPIO3 is an active-low power-down control; GPIO0 and GPIO1 serve as programmable alarm outputs (high-alarm and low-alarm, respectively) for any enabled channel.
Is the ADS7960SRHBT pin-compatible with other devices in the ADS79xx family?
Yes, the ADS7960SRHBT shares the same 38-pin TSSOP footprint with ADS7952, ADS7953, ADS7956, ADS7957, ADS7961, and ADS7952SRHBT. All 38-pin variants use identical pin assignments for power, interface, reference, and analog inputs - enabling hardware reuse across 12-bit, 10-bit, and 8-bit resolutions and 12-/16-channel configurations.
What is the purpose of the MXO pin on the ADS7960SRHBT?
The MXO (Multiplexer Output) pin on the ADS7960SRHBT provides the buffered analog output of the internal channel multiplexer, prior to the ADC core. It is intended to drive external circuitry such as a high-input-impedance PGA (e.g., THS4031) or anti-aliasing filter. Direct connection to high-capacitance or low-impedance loads may degrade settling time and accuracy, so buffering is recommended per the datasheet's application guidance.
ADS7960SRHBT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- microPOWER™
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 1M
- Number of Inputs:
- 12
- Input Type:
- Single Ended
- Data Interface:
- SPI
- Configuration:
- MUX-S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 2.7V ~ 5.25V
- Voltage - Supply, Digital:
- 1.7V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 32-VQFN (5x5)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS7960SRHBT FAQ
1.How can I place an order for ADS7960SRHBT through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS7960SRHBT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADS7960SRHBT reliable?
The price and inventory of ADS7960SRHBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS7960SRHBT is usually 5 days.
3.What payment methods are accepted for ADS7960SRHBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS7960SRHBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS7960SRHBT?
ADS7960SRHBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS7960SRHBT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADS7960SRHBT?
For technical support, including ADS7960SRHBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS7960SRHBT requirements.
6.How does Aetrix verify that ADS7960SRHBT is sourced from the original manufacturer or authorized distributors?
All ADS7960SRHBT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADS7960SRHBT meets industry standards.
7.What is the process for return or replacement of ADS7960SRHBT?
All ADS7960SRHBT units undergo pre-shipment inspection (PSI). If there is an issue with ADS7960SRHBT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADS7960SRHBT part is unused and in its original packaging.
Return procedure for ADS7960SRHBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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