ADS1196CZXGT

Product Overview

Category

The ADS1196CZXGT belongs to the category of integrated circuits (ICs) specifically designed for biomedical applications.

Use

This IC is primarily used in medical devices and equipment for measuring and monitoring bioelectric signals, such as electrocardiograms (ECGs) and electromyograms (EMGs).

Characteristics

• High-resolution: The ADS1196CZXGT offers high-resolution analog-to-digital conversion, enabling accurate measurement of small bioelectric signals.
• Low noise: It features low input-referred noise, ensuring reliable signal acquisition even in noisy environments.
• Low power consumption: The IC is designed to operate with minimal power consumption, making it suitable for portable and battery-powered medical devices.
• Integrated features: It incorporates various features like programmable gain amplifiers, digital filters, and lead-off detection circuitry, simplifying system design and reducing external component count.

Package

The ADS1196CZXGT is available in a compact and industry-standard package, such as a 64-pin TQFP (Thin Quad Flat Package), facilitating easy integration into medical device designs.

Essence

The essence of the ADS1196CZXGT lies in its ability to accurately acquire and process bioelectric signals, providing valuable data for medical diagnosis and research purposes.

Packaging/Quantity

This IC is typically supplied in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

• Resolution: 24 bits
• Sampling Rate: Up to 32 kSPS (samples per second)
• Input Channels: 8 differential or 16 single-ended channels
• Supply Voltage Range: 2.7V to 5.25V
• Operating Temperature Range: -40°C to +85°C
• Interface: Serial Peripheral Interface (SPI)

Detailed Pin Configuration

The ADS1196CZXGT features a 64-pin TQFP package with the following pin configuration:

1. VREFP
2. VREFN
3. AVDD
4. DVDD
5. CLK
6. CS
7. DIN
8. DOUT
9. DRDY
10. RESET
11. START
12. PWDN
13. GPIO1
14. GPIO2
15. GPIO3
16. GPIO4
17. GPIO5
18. GPIO6
19. GPIO7
20. GPIO8
21. GPIO9
22. GPIO10
23. GPIO11
24. GPIO12
25. GPIO13
26. GPIO14
27. GPIO15
28. GPIO16
29. GPIO17
30. GPIO18
31. GPIO19
32. GPIO20
33. GPIO21
34. GPIO22
35. GPIO23
36. GPIO24
37. GPIO25
38. GPIO26
39. GPIO27
40. GPIO28
41. GPIO29
42. GPIO30
43. GPIO31
44. GPIO32
45. GPIO33
46. GPIO34
47. GPIO35
48. GPIO36
49. GPIO37
50. GPIO38
51. GPIO39
52. GPIO40
53. GPIO41
54. GPIO42
55. GPIO43
56. GPIO44
57. GPIO45
58. GPIO46
59. GPIO47
60. GPIO48
61. GPIO49
62. GPIO50
63. GPIO51
64. GND

Functional Features

• Programmable Gain Amplifiers (PGAs): The ADS1196CZXGT includes eight PGAs, allowing for adjustable gain settings to accommodate different signal amplitudes.
• Digital Filters: It incorporates digital filters to remove unwanted noise and artifacts from the acquired bioelectric signals, enhancing signal quality.
• Lead-off Detection: The IC features built-in lead-off detection circuitry, enabling the detection of electrode disconnection or poor contact with the patient's skin.
• Daisy Chain Mode: It supports daisy-chaining multiple ADS1196CZXGT ICs, simplifying the design of multi-channel medical devices.

Advantages and Disadvantages

Advantages

• High-resolution conversion for accurate signal measurement
• Low input-referred noise for reliable signal acquisition
• Integrated features reduce external component count
• Low power consumption for portable and battery-powered devices

Disadvantages

• Limited number of input channels (8 differential or 16 single-ended)
• Requires additional external components for complete system implementation

Working Principles

The ADS1196CZXGT operates based on the principle of analog-to-digital conversion. It receives analog bioelectric signals from electrodes, amplifies them using programmable gain amplifiers, and then converts them into digital format using high-resolution ADCs. The digital signals are further processed using digital filters to remove noise and artifacts before