TLV2548-EP エンハンスド製品、2 ビット 200kSPS ADC、シリアル 出力、自動パワー・ダウン(ソフトウェアおよびハードウェア)、低消費電力、8 x FIFO、8 チャネル |

この製品はすでに市場にリリースされており、ご購入できます。 一部の製品は、より新しい代替品を使用できる可能性があります。
エンハンスド製品、2 ビット 200kSPS ADC、シリアル 出力、自動パワー・ダウン(ソフトウェアおよびハードウェア)、低消費電力、8 x FIFO、8 チャネル

エンハンスド製品、2 ビット 200kSPS ADC、シリアル 出力、自動パワー・ダウン(ソフトウェアおよびハードウェア)、低消費電力、8 x FIFO、8 チャネル - TLV2548-EP


The TLV2548 is a high performance, 12-bit low-power, 3.86-µs, CMOS analog-to-digital converter (ADC) which operates from a single 3.0-V to 5.5-V power supply. This device has three digital inputs and a 3-state output [chip select (CS), serial input-output clock (SCLK), serial data input (SDI), and serial data output (SDO)] that provide a direct 4-wire interface to the serial port of most popular host microprocessors (SPI interface). When interfaced with a TI DSP, a frame sync (FS) signal is used to indicate the start of a serial data frame.

In addition to a high-speed A/D converter and versatile control capability, this device has an on-chip analog multiplexer that can select any analog inputs or one of three internal self-test voltages. The sample-and-hold function is automatically started after the fourth SCLK edge (normal sampling) or can be controlled by a special pin, CSTART, to extend the sampling period (extended sampling). The normal sampling period can also be programmed as short (12 SCLKs) or as long (24 SCLKs) to accommodate faster SCLK operation popular among high-performance signal processors. The TLV2548 is designed to operate with very low power consumption. The power-saving feature is further enhanced with software/hardware/autopower-down modes and programmable conversion speeds. The conversion clock (OSC) and reference are built-in. The converter can use the external SCLK as the source of the conversion clock to achieve higher (up to 2.8 µs when a 20-MHz SCLK is used) conversion speed. Two different internal reference voltages are available. An optional external reference can also be used to achieve maximum flexibility.

The TLV2548 is characterized for operation from –55°C to 125°C.


  • Maximum Throughput 200-KSPS
  • Built-In Reference, Conversion Clock and 8x FIFO
  • Differential/Integral Nonlinearity Error: ±1.2 LSB
  • Signal-to-Noise and Distortion Ratio: 70 dB, fi = 12 kHz
  • Spurious Free Dynamic Range: 75 dB, fi = 12 kHz
  • SPI (CPOL = 0, CPHA = 0)/DSP-Compatible Serial Interfaces
    With SCLK up to 20 MHz
  • Single Wide Range Supply 3.0 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, 2.0 mA at 5.5 V With External Ref,
    1.7-mA at 3.3V, 2.4-mA at 5.5-V With Internal Ref)
  • Power Down: Software/Hardware
    Power-Down Mode (1 µA Max, Ext Ref),
    Autopower-Down Mode (1 µA, Ext Ref)
  • Programmable Auto-Channel Sweep
    • Controlled Baseline
    • One Assembly/Test Site
    • One Fabrication Site
    • Available in Military (–55°C/125°C) Temperature Range(1)
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability

(1) Custom temperature ranges available


他の製品と比較 高精度 ADCs (<=10MSPS) メール Excelへダウンロード
Part number オーダー・オプション Resolution (Bits) Sample rate (Max) (kSPS) Number of input channels Interface Operating temperature range (C) Package Group Approx. price (US$) Power consumption (Typ) (mW) Package size: mm2:W x L (PKG) Architecture Input type Multi-channel configuration Reference mode Features Input range (Max) (V) Input range (Min) (V) Analog voltage AVDD (Min) (V) Analog voltage AVDD (Max) (V) Digital supply (Min) (V) Digital supply (Max) (V) INL (Max) (+/-LSB) SNR (dB) THD (Typ) (dB) Rating
TLV2548-EP ご注文 12     200     8     SPI     -55 to 125     TSSOP | 20     9.47 | 1ku     3.3     20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP | 20)     SAR     Single-Ended     Multiplexed     Ext
Oscillator     5.5     0     3     5.5     3     5.5     1.2     71     -82     HiRel Enhanced Product