Overview
The ADG2128YCPZ-REEL7, produced by Analog Devices Inc., is an analog crosspoint switch with an array size of 8 × 12. This device features a bidirectional switch array, allowing the rows and columns to be configured as either inputs or outputs. The array consists of 96 switch channels, each of which can be addressed and configured through an I2C-compatible interface. The ADG2128 supports standard, full speed, and high speed (3.4 MHz) I2C interfaces, enabling flexible and high-speed communication. The device is packaged in a 32-lead, 5 mm × 5 mm LFCSP (Lead Frame Chip Scale Package).
Key Specifications
| Parameter | Unit | Conditions | Typical | Maximum |
|---|---|---|---|---|
| On Resistance (RON) | Ω | +25°C | 35 | 35 |
| Input Low Voltage (VINL) | V | +25°C | -0.3 | 0.3 VL |
| Input High Voltage (VINH) | V | +25°C | 0.7 VL | VL + 0.3 |
| Input Leakage Current (IIN) | µA | VIN = 0 V to VL | 0.005 | ±1 |
| Quiescent Current (IDD) | µA | Digital inputs = 0 V or VL | 0.05 | 1 |
| Turn-On Time (tON) | ns | RL = 300 Ω, CL = 35 pF | 170 | 220 |
| Turn-Off Time (tOFF) | ns | RL = 300 Ω, CL = 35 pF | 210 | 260 |
| Total Harmonic Distortion + Noise (THD + N) | % | RL = 10 kΩ, f = 20 Hz to 20 kHz, VS = 1 V p-p | 0.04 | - |
| Power Supply Rejection Ratio (PSRR) | dB | - | 90 | - |
Key Features
- I2C-compatible interface with standard, full speed, and high speed (3.4 MHz) options
- 32-lead LFCSP (5 mm × 5 mm) package
- Double-buffered input logic
- Simultaneous update of multiple switches using the LDSW command
- Up to 300 MHz bandwidth
- Fully specified at dual ±5 V or single +12 V operation
- Low quiescent current (< 20 µA)
- Qualified for automotive applications
Applications
- AV switching in TV and automotive infotainment systems
- AV receivers and CCTV systems
- Ultrasound applications
- KVM switching and telecom applications
- Test equipment and instrumentation
- PBX systems
Q & A
- What is the array size of the ADG2128?
The ADG2128 has an array size of 8 × 12, providing a total of 96 switch channels.
- What types of I2C interfaces does the ADG2128 support?
The ADG2128 supports standard, full speed, and high speed (3.4 MHz) I2C interfaces.
- What is the package type and size of the ADG2128?
The ADG2128 is packaged in a 32-lead, 5 mm × 5 mm LFCSP (Lead Frame Chip Scale Package).
- What is the maximum on resistance of the ADG2128?
The maximum on resistance (RON) of the ADG2128 is 35 Ω.
- Can the switches be updated simultaneously?
- What is the quiescent current of the ADG2128?
The quiescent current (IDD) of the ADG2128 is less than 20 µA.
- Is the ADG2128 qualified for automotive applications?
- What is the bandwidth of the ADG2128?
The ADG2128 has a bandwidth of up to 300 MHz.
- What are some common applications of the ADG2128?
- How are the switches configured at power-on?
