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The AD5770RBCBZ is a 6-channel, 14-bit resolution, low-noise programmable current-output digital-to-analog converter (DAC), suitable for optoelectronic control applications.

Basic information

Model: AD5770RBCBZ

Digit number: 14

Digital-to-analog converter number: 6

Establishment time: 13µs (typical value)

Output type: Current - Unbuffered

Differential output: None

Data interface: Serial, SPI

Reference types: External, Internal

Voltage - Power supply, simulation: 2.9V to 5.5V

Voltage - Power supply, digital: 2.9V to 5.5V

INL/DNL (LSB) : ±6.5 (maximum), ±1 (maximum)

Architecture: Current guidance

Operating temperature: -40°C to 105°C

Package/Shell: 49-WLCSP

Installation type: Surface mount type

Explanation

The AD5770RBCBZ is a 6-channel 14-bit resolution low-noise programmable current output digital-to-analog converter (DAC) suitable for optoelectronic control applications. This kit includes a 1.25V on-chip reference voltage source, a 2.5k Ω precision resistor for generating the reference current, die temperature, output monitoring function, fault alarm and reset function.

The AD5770RBCBZ features five 14-bit resolution pull current DAC channels and one 14-bit resolution pull current and sink current DAC channel.

Channel 0 can be configured to consume up to 60 mA of current and generate up to 300 mA of current. Channels 1 to 5 have multiple programmable output current source ranges set through registers.

Each DAC can operate within a wide power rail range of 0.8V to AVDD - 0.4V to optimize power efficiency and thermal power consumption.

The AD5770RBCBZ adopts a 2.9V to 5.5V AVDD power supply with a rated temperature range of -40 °C to + 105°C.

In addition, the AD5770RBCBZ also features the following main characteristics:

6-channel current output DAC

14-bit resolution

Programmable output current range

Channel: 00 mA to 300 mA, -60 mA to +300 mA, -60 mA to 0 mA

Channel 1:0 mA to 140 mA, 0 mA to 250 mA

Channel 2:0 mA to 55 mA, 0 mA to 150 mA

Channel 3, Channel 4, Channel 5:0 mA to 45 mA, 0 mA to 100 mA

The output range of all current sources is reduced in proportion to up to 0.5×

1.25V on-chip reference voltage source

Integrated precision reference voltage source resistor

SPI interface

Reset function

Output current monitor

Constant current output voltage monitor

Die temperature monitor

Integrated thermal shutdown

49 balls, 4 mm × 4 mm WLCSP package

Operating temperature: -40 °C to +105°C

Application field

The AD5770RBCBZ is widely used in optoelectronic control applications, such as:

Photoelectric control

Programmable current source for LED driver

Current mode bias

For further information on AD5770RBCBZ, please visit our official website (www.hkmjd.com).