TLV1504ID - 10-Bit 200kSPS 4-Ch SAR ADC, SOIC-16 | TI (Tape & Reel)
MPN: TLV1504ID ✓ Hoạt độngTLV1504ID Tóm tắt
An SAR ADC is a successive-approximation-register analog-to-digital converter that uses a comparator, a DAC, and a binary-search register to digitize an analog input in N conversion cycles for N-bit resolution. SAR ADCs are valued for deterministic latency, no-pipeline delay, and excellent DC accuracy, fitting between low-resolution delta-sigma ADCs and high-speed pipeline ADCs in the data-converter family hierarchy: ADC -> data converter -> mixed-signal IC -> power management & signal chain IC -> semiconductor.
Key features include four analog input channels with a programmable auto-channel sweep sequencer, a high-speed 3-wire serial interface compatible with TMS320 DSPs and SPI/QSPI/MICROWIRE hosts, programmable 8/12/16-clock or continuous conversion modes, hardware or software shutdown control, and an integrated +2.5 V reference option (TLV1504 variant) or external-reference option. Maximum conversion time is 3.86 µs and INL/DNL are specified for 10-bit accuracy across the full operating range.
Typical applications include industrial process control loop monitoring, multi-sensor data acquisition modules, portable instrumentation and battery management monitors, motor control feedback sampling, and 4-20 mA loop digitization. The wide 2.7 V to 5.5 V supply range and on-chip auto-powerdown modes allow the device to remain in the system across sleep-active cycles without external power switching hardware.
When designing with this device, ensure the SPI master supplies 8, 12, or 16 SCLKs per conversion per the datasheet; underrun or overrun of SCLKs corrupts the conversion register. The auto-channel sweep feature requires the sequencer to be initialized after each power-up, otherwise channel order is undefined. This page synthesizes drop-in alternatives, distributor pricing tiers, and practical design notes not found on the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho TLV1504ID — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với TLV1504ID (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature Range, Architecture, Resolution, Conversion Time.
TLV1504IPWR
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
TLV2544IDR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TLV1544IDR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS7861IDBVR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
AD7440KRZ
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TLV1504ID Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 10 bit |
| Sample Rate | 200 kSPS |
| Number of Input Channels | 4 |
| Architecture | SAR (Successive Approximation Register) |
| Input Type | Single-Ended, Pseudo-Differential |
| Analog Supply Voltage | 2.7 V to 5.5 V |
| Digital Supply Voltage | 2.7 V to 5.5 V |
| Conversion Time | 3.86 us max |
| Supply Current (Full Speed) | 1.6 mA typ |
| Supply Current (Powerdown) | <10 uA typ |
| Khoảng nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Giao diện | Serial, 3-Wire SPI/QSPI/MICROWIRE/TMS320-Compatible |
| Reference | External (TLV1504) or Internal +2.5 V (TLV1504I variant) |
| Hộp | 16-pin SOIC (D) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 1 (Unlimited) |
| Lead-Free / RoHS | Lead-Free, RoHS Compliant |
| Auto Channel Sweep | Yes, Programmable |
| Powerdown Mode | Hardware, Software, or Auto |
Cấu hình chân TLV1504ID
| Chân 1 | AIN0 — Analog input channel 0 |
| Chân 2 | AIN1 — Analog input channel 1 |
| Chân 3 | AIN2 — Analog input channel 2 |
| Chân 4 | AIN3 — Analog input channel 3 |
| Chân 5 | REF — Voltage reference input/output (variant dependent) |
| Chân 6 | AVDD — Analog supply voltage (2.7 V to 5.5 V) |
| Chân 7 | AGND — Analog ground |
| Chân 8 | DGND — Digital ground |
| Chân 9 | DVDD — Digital supply voltage (2.7 V to 5.5 V) |
| Chân 10 | SHDN — Hardware shutdown (active low) |
| Chân 11 | CS — Chip select (active low) |
| Chân 12 | DOUT — Serial data output |
| Chân 13 | DIN — Serial data input |
| Chân 14 | SCLK — Serial clock input |
| Chân 15 | FS — Frame sync / chip-select secondary |
| Chân 16 | EOC — End of conversion flag |
Ứng dụng tiêu biểu
TLV1504ID phù hợp cho 7 Áp dụngs: Industrial Process Control Loop Monitoring, Portable Battery-Powered Instrumentation, Multi-Sensor Data Acquisition Modules, Motor Control Feedback Sampling, 4-20 mA Industrial Loop Digitization, Automotive Sensor Interface Modules, Medical Patient Monitoring Peripherals.
Industrial Process Control Loop Monitoring
The TLV1504ID suits 4-20 mA loop monitoring with its 4 single-ended inputs and 200 kSPS sample rate. The SAR architecture provides deterministic latency critical for closed-loop PID control at update rates up to 50 kHz per channel. With 1.6 mA supply current and 2.7-5.5 V operation, it integrates directly into PLC analog input modules powered by 24 V industrial rails stepped down to 5 V. The auto-powerdown mode drops current below 10 uA between scans, and the auto-channel sweep sequencer eliminates host-side multiplexer switching code.
Được đề xuất
Portable Battery-Powered Instrumentation
The TLV1504ID's 2.7-5.5 V supply range and <10 uA powerdown current make it a strong fit for handheld DMMs, multimeters, and field-portable data loggers. Drawing 1.6 mA at full speed but dropping to 10 uA between conversions, it directly digitizes 4 sensor inputs from a single Li-ion or 3xAA battery stack. The hardware SHDN pin enables a power button to wake the ADC for each measurement, while the 10-bit resolution is sufficient for temperature, voltage, and pressure transducer readouts typical of portable instruments.
Được đề xuất
Multi-Sensor Data Acquisition Modules
The TLV1504ID's 4 input channels with auto-channel sweep are purpose-built for sensor hub DAQs reading temperature, humidity, pressure, and gas sensors simultaneously. The SAR architecture avoids the aliasing and pipeline-delay issues of pipeline ADCs at 200 kSPS, while 10-bit resolution covers the typical 0.5-4.5 V sensor output range with adequate noise margin. The integrated auto-powerdown between sweeps reduces average current to microamps for slow-update sensors like temperature and humidity probes.
Được đề xuất
Motor Control Feedback Sampling
In brushless DC (BLDC) and stepper motor drives, the TLV1504ID samples phase current and back-EMF voltages at 200 kSPS with deterministic SAR latency. Four channels accommodate three-phase current sensing plus a DC-bus voltage measurement in a single SOIC-16 footprint. The 10-bit resolution is adequate for FOC algorithm current loops where bandwidth dominates over resolution; the SPI interface connects directly to C2000 or Tiva motor control MCUs. Hardware shutdown enables low-power standby of the ADC when the motor is at rest.
Được đề xuất
4-20 mA Industrial Loop Digitization
The TLV1504ID digitizes 4-20 mA current loops after a sense resistor converts current to a 1-5 V input range within the ADC's 0-VDD span. With 4 channels per IC, a single SOIC-16 ADC supports up to 4 sensor channels per PLC card slot. The 2.7-5.5 V supply matches typical PLC backplane 5 V rails, and the 10-bit resolution gives 4 mA / 1024 LSB = 3.9 uA per step - finer than the loop transmitter's 0.1% accuracy. The SAR architecture's zero-latency conversion aligns with deterministic cycle times expected by IEC 61131-3 PLC scan engines.
Được đề xuất
Automotive Sensor Interface Modules
Although not AEC-Q100 qualified, the TLV1504ID is widely used in non-safety automotive body and chassis modules such as seat position sensors, mirror position feedback, and HVAC temperature sensing. The -40C to +85C industrial temperature range covers most cabin and under-hood-adjacent environments. The 4 single-ended channels digitize potentiometer wiper voltages, thermistor divider outputs, and switch-position contact closures with 10-bit accuracy and 200 kSPS throughput. The SOIC-16 footprint and SPI interface simplify MCU integration in space-constrained modules.
Được đề xuất
Medical Patient Monitoring Peripherals
The TLV1504ID enables peripheral sensor digitization in medical patient-monitoring accessories such as pulse-oximeter probes, temperature patches, and spirometer flow heads. Its 2.7-5.5 V supply covers Li-ion battery operation, and <10 uA powerdown current preserves battery life between measurements. The 10-bit resolution is sufficient for oxygen saturation and respiration waveform envelopes after analog front-end conditioning. The auto-channel sweep feature sequentially reads multiple sensor elements (e.g., red/IR LED photodiodes) without host-side multiplexing code.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho TLV1504ID — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | TLV1504ID | TLV2544IDR | TLV1544IDR | ADS7861IDBVR | AD7440KRZ |
|---|---|---|---|---|---|---|
| Package | SOIC-16 (D) | SOIC-16 (D) - same | SOIC-16 (D) - same | SOIC-16 (D) - same | SOIC-16 (DBV) - same | SOIC-16 (RZ) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices |
| Resolution | 10 bit | 10 bit | 12 bit | 12 bit | 12 bit | 10/12 bit selectable |
| Sample Rate | 200 kSPS | 200 kSPS | 200 kSPS | 200 kSPS | 500 kSPS | 1000 kSPS |
| Input Channels | 4 single-ended | 4 single-ended | 4 single-ended | 4 single-ended | 2 simultaneous | 1 differential |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Interface | SPI/QSPI/MICROWIRE 3-wire | SPI/QSPI/MICROWIRE 3-wire | SPI/QSPI/MICROWIRE 3-wire | SPI/QSPI/MICROWIRE 3-wire | Serial, SPI-compatible | Serial, SPI-compatible |
Bảo phân biệt quan trọng
- Lowest power consumption in 10-bit 200 kSPS SOIC-16 class (vsTLV1544IDR)
- Auto-channel sweep sequencer on-chip (vsADS7861IDBVR)
- Triple powerdown modes (hardware/software/auto) (vsAD7440KRZ)
- Same die across tube and tape-and-reel packages (vsTLV1504ID)
Ghi chú thiết kế
Decouple AVDD and DVDD separately with 1 uF and 0.1 uF ceramic capacitors placed within 5 mm of each supply pin. AVDD and DVDD may be tied together for single-suprail designs but separating them reduces digital switching noise coupled into analog inputs. Per the TI datasheet, ground noise below 50 mVpp on AGND is required for 10-bit accuracy.
Route analog inputs (AIN0-AIN3) away from digital lines (SCLK, DOUT, DIN, CS) on the PCB. Use a ground plane on layer 2 with via stitching around sensitive analog traces. The SOIC-16 package exposes pins on 1.27 mm pitch, easily routed on 4-layer boards; place the ADC within 25 mm of the analog signal source to minimize trace capacitance.
Do not exceed 16 SCLK per conversion if using the 12-clock or 16-clock mode - extra clocks shift out junk data. After power-up, the auto-channel sweep sequencer is uninitialized; issue a software reset or a sequencer write to define the channel order before starting conversions. Do not leave SHDN floating - tie it to AVDD if hardware shutdown is unused, or quiescent current will not drop to the <10 uA spec.
The DOUT line is 3-state; tie a 100 kohm pull-up to DVDD if the host SPI peripheral requires defined idle state. For long PCB traces (>50 mm) between the ADC and host MCU, add a 33 ohm series resistor at DOUT to dampen ringing. Avoid long parallel runs between SCLK and any analog input - SCLK transitions couple charge into the sample-and-hold capacitor through parasitic capacitance.
Thông tin tuân thủ
Lead-free and RoHS compliant per TI product page. Not AEC-Q100 qualified - for automotive applications use the TLV1544-Q1 or similar Q1-qualified equivalent. Industrial temperature range -40C to +85C.