TLV1504IDR - 10-Bit 200kSPS 4-Ch SAR ADC, SOIC-16 | TI
料号： TLV1504IDR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.85 | $3.85 |
| 10 | $3.55 | $35.50 |
| 100 | $2.95 | $295.00 |
| 500 | $2.5 | $1,250.00 |
| 1,000 | $2.1 | $2,100.00 |
| 2,500 | $1.8 | $4,500.00 |
TLV1504IDR 概述
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.
直接替换替代料： TLV1504IDR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： TLV1504IDR （相同外形与封装尺寸） ——差异在于 Input Type, Interface, MSL Level.
快速对比工具——选择替代料号进行并排对比：
TLV1504ID
✅ 直接替换📋 参考替代料（不在目录中）
TLV1504IPWR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TLV2544IDR
✅ 直接替换📋 参考替代料（不在目录中）
TLV1544IDR
✅ 直接替换📋 参考替代料（不在目录中）
ADS7861IDBVR
✅ 直接替换📋 参考替代料（不在目录中）
AD7440KRZ
✅ 直接替换📋 参考替代料（不在目录中）
TLV1504IDR 最大额定值与电气特性
| 分辨率 | 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 |
| 工作温度范围 | -40C to +85C (Industrial) |
| 接口 | Serial, 3-Wire SPI/QSPI/MICROWIRE/TMS320-Compatible |
| Reference | External (TLV1504) or Internal +2.5 V (TLV1504I variant) |
| 封装 | 16-pin SOIC (D) |
| 安装类型 | Surface Mount |
| MSL 等级 | 1 (Unlimited) |
| Lead-Free / RoHS | Lead-Free, RoHS Compliant |
| Auto Channel Sweep | Yes, Programmable |
| Powerdown Mode | Hardware, Software, or Auto |
TLV1504IDR 引脚配置
| 引脚 1 | AIN0 — Analog input channel 0 |
| 引脚 2 | AIN1 — Analog input channel 1 |
| 引脚 3 | AIN2 — Analog input channel 2 |
| 引脚 4 | AIN3 — Analog input channel 3 |
| 引脚 5 | REF — Voltage reference input/output (variant dependent) |
| 引脚 6 | AVDD — Analog supply voltage (2.7 V to 5.5 V) |
| 引脚 7 | AGND — Analog ground |
| 引脚 8 | DGND — Digital ground |
| 引脚 9 | DVDD — Digital supply voltage (2.7 V to 5.5 V) |
| 引脚 10 | SHDN — Hardware shutdown (active low) |
| 引脚 11 | CS — Chip select (active low) |
| 引脚 12 | DOUT — Serial data output |
| 引脚 13 | DIN — Serial data input |
| 引脚 14 | SCLK — Serial clock input |
| 引脚 15 | FS — Frame sync / chip-select secondary |
| 引脚 16 | EOC — End of conversion flag |
典型应用
TLV1504IDR 适用于 7 应用s: 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 TLV1504IDR 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.
推荐
Portable Battery-Powered Instrumentation
The TLV1504IDR'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.
推荐
Multi-Sensor Data Acquisition Modules
The TLV1504IDR'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.
推荐
Motor Control Feedback Sampling
In brushless DC (BLDC) and stepper motor drives, the TLV1504IDR 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.
推荐
4-20 mA Industrial Loop Digitization
The TLV1504IDR 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.
推荐
Automotive Sensor Interface Modules
Although not AEC-Q100 qualified, the TLV1504IDR 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.
推荐
Medical Patient Monitoring Peripherals
The TLV1504IDR 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.
推荐
推荐产品汇总
工程参考数据： TLV1504IDR ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- Lowest power consumption in 10-bit 200 kSPS SOIC-16 class （对比 TLV1544IDR)
- Auto-channel sweep sequencer on-chip （对比 ADS7861IDBVR)
- Triple powerdown modes (hardware/software/auto) （对比 AD7440KRZ)
- Same die across tube and tape-and-reel packages （对比 TLV1504ID)
设计说明
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.
合规信息
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.
