Texas Instruments TLV1508IDW

Description
The TLV1508 and TLV1504 are high-performance, 10-bit, low-power, 3.86 μs CMOS analog-to-digital converters (ADCs) that operate from a single 2.7-V to 5.5-V power supply. They feature a 4-wire SPI interface and a frame sync (FS) signal for interfacing with TMS320 DSPs. The devices have an on-chip analog multiplexer that can select any analog input or one of three internal self-test voltages. The sample-and-hold function can be automatically started or controlled by a CSTART pin for extended sampling. The normal sampling period can be programmed as short (12 SCLKS) or long (24 SCLKS) to accommodate faster SCLK operation. The TLV1508 and TLV1504 are designed for low power consumption with software/hardware/auto power-down modes and programmable conversion speeds. They have a built-in conversion clock (OSC) and reference, but can also use an external SCLK as the conversion clock source for higher conversion speeds (up to 2.8 μs with a 20 MHz SCLK). Two internal reference voltages are available, and an optional external reference can be used for maximum flexibility.

Features
Maximum throughput: 200 kSPS
Built-in reference, conversion clock, and 8x FIFO
Differential/integral nonlinearity error: ±1 LSB
Signal-to-noise and distortion ratio: 59 dB, fj = 12 kHz
Spurious free dynamic range: 72 dB, fj = 12 kHz
SPI (CPOL = 0, CPHA = 0)/DSP-compatible serial interfaces with SCLK up to 20 MHz
Single wide-range supply: 2.7 Vdc to 5.5 Vdc
Analog input range: 0 V to supply voltage with 500 kHz BW
Hardware-controlled and programmable sampling period
Low operating current (1.0 mA at 3.3 V, 1.1 mA at 5.5 V with external reference)
Power down: software/hardware
Power-down mode (1 μA max, ext ref), auto power-down mode (1 μA, ext ref)
Programmable auto-channel sweep
Pin-compatible 12-bit upgrades available (TLV2544, TLV2548)

Applications
Data acquisition systems
Process control
Medical instrumentation
Industrial automation
Battery-powered applications