12-bit multiplying DAC in a through-hole DIP
The LTC7541AKN#PBF is a 12-bit multiplying digital-to-analog converter from Analog Devices, built on a classic R-2R ladder architecture. It delivers a current output (unbuffered) with a typical settling time of 600 ns, making it suitable for control loops, waveform generation, and precision attenuator applications where update rate matters. The parallel data interface accepts a 12-bit word directly, and the differential output allows the user to configure the output polarity or drive a downstream op-amp for a voltage output. The part operates from a single analog and digital supply rail spanning 5 V to 16 V, which simplifies power distribution on the board.
Linearity and settling — what they mean for your design
The ±0.5 LSB maximum INL and DNL (both at ±0.5 LSB max) means the output code is within half a least-significant bit of the ideal transfer function across all codes. No missing codes at 12-bit resolution. The 600 ns typical settling time to ±0.5 LSB defines the maximum update rate. The external reference input lets you set the full-scale output range independently of the supply rails.
Package and temperature grade — fit for the board
The 18-pin DIP (0.300" body width, 7.62 mm pitch) is a through-hole package, so this part is a natural fit for prototyping boards, legacy designs, or any build where wave soldering is preferred over reflow. The 0°C to 70°C commercial temperature range limits deployment to controlled indoor environments — office equipment, benchtop instruments, or rack-mount gear — not outdoor or under-hood automotive. The ROHS3 compliance means no lead in the solder finish, which is the current standard for most production runs.
Sourcing and lifecycle
The LTC7541AKN#PBF is listed as Active — no end-of-life notice, no last-time-buy window. That means it remains a viable choice for new designs and production BOMs without the supply-chain risk of an imminent phase-out.