Active production — eight channels in one SOIC
The TLV5608IDW is an active-production octal 10-bit DAC from Texas Instruments, packing eight voltage-buffered outputs into a single 20-pin SOIC wide-body package. The 7 µs settling time to ±0.5 LSB means a full-scale step on any channel settles within one SPI frame at typical clock rates — no wait states between writes.
String DAC architecture and linearity budget
The String DAC architecture uses a resistor-divider chain for monotonicity — no glitch energy from an R-2R ladder. The ±0.5 LSB INL and ±0.1 LSB DNL guarantee no missing codes across the full 10-bit range. An external reference (REF IN) sets the full-scale voltage; the output buffer swings rail-to-rail within the supply headroom, so the reference must stay below the analog supply minus the buffer dropout. Differential output is not available — each of the eight channels is single-ended, buffered, and capable of sinking or sourcing 2 mA typical into a 10 kΩ || 100 pF load.
SPI interface and board integration
The SPI data interface (SDIN, SCLK, CS, LDAC) daisy-chains multiple TLV5608 devices on a single bus — the 10-bit word per channel serialises eight words in 80 clocks per update cycle. The 20-SOIC wide-body footprint (7.50 mm body width) matches standard SOIC-20W land patterns. Surface-mount assembly with a 1.27 mm pitch — no fine-pitch reflow challenges.
ROHS3 compliant — no exemption for lead in solder; the part ships in tube packaging (50 units per tube typical).