TLV1562IDWRG4 - 10-Bit 2MSPS Quad ADC w/4-CH Mux | TI
N.º de pieza: TLV1562IDWRG4 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $9.2 | $9,20 |
| 10 | $8.32 | $83,20 |
| 100 | $7.05 | $705,00 |
| 500 | $6.12 | $3.060,00 |
| 1.000 | $5.45 | $5.450,00 |
TLV1562IDWRG4 Descripción general
An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that samples a continuous-time analog waveform and quantizes each sample into a binary code word. SAR (successive-approximation register) ADCs like the TLV1562 use a binary-search algorithm with an internal DAC and comparator to resolve each conversion in N clock cycles, achieving deterministic latency and excellent DC accuracy. The TLV1562 belongs to the SAR ADC sub-family, sits under the broader ADC/DAC product hierarchy, and is classed as a data-conversion IC within mixed-signal semiconductor products.
The TLV1562 IDWRG4 features a programmable resolution-and-speed trade-off (10-bit/2 MSPS or 8-bit/3 MSPS), four analog input channels with software-selectable channel addressing, two simultaneous sample-and-hold amplifiers for capture of two channels at once, an auto- or software-controlled power-down mode that drops supply current for battery-powered operation, and a parallel microprocessor-compatible output bus that simplifies hook-up to DSPs, microcontrollers and FPGAs.
Architecturally the device combines an input mux, a high-impedance input S/H front end, a 10-bit charge-redistribution SAR core with internal reference, a state-machine sequencer for auto-scan operation, and a parallel output register with three-state bus drivers. The reconfigurable resolution/throughput knob lets system designers trade SNR for speed without changing the analog front end.
Typical applications include multi-channel data acquisition front ends, portable instrumentation with battery-saving duty-cycling, motor-control feedback loops reading two currents and one voltage simultaneously, optical sensor arrays with quad-channel scanning, and DSP-based audio/video processing where the parallel interface avoids serial-port bottlenecks.
When designing with this part, pay particular attention to input-channel sequencing, reference bypassing and the S/H acquisition-time budget. Choosing software-mode power-down reduces IDD to a few hundred microamps between conversions - useful for handheld instruments where the ADC must wake, convert a burst and return to sleep.
This page synthesizes distributor pricing, drop-in alternatives in the same 28-SOIC footprint and practical design notes not found on the manufacturer datasheet cover page.
Alternativas directas para TLV1562IDWRG4 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
TLV1562IDW
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
TLV1562IDWR
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
TLV1562IPWR
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
TLV1562CPWR
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MAX1300ECM+
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
TLV1562IDWRG4 Valores máximos y características eléctricas
| Resolución | 10 bit |
| Max Sample Rate (10-bit mode) | 2 MSPS (single channel, 5 V) |
| Max Sample Rate (8-bit mode) | 3 MSPS (single channel) |
| Number of Analog Input Channels | 4 (single-ended / differential via mux) |
| DNL (Differential Non-Linearity) | ±1 LSB (max) |
| INL (Integral Non-Linearity) | ±1 LSB (max) |
| Analog Input Voltage Range | 0 V to 5.5 V (absolute max) |
| Supply Voltage (Analog/Digital) | 3 V / 5 V nominal |
| Sample-and-Hold | Dual S/H (simultaneous 2-channel capture) |
| Interfaz | Parallel (microprocessor/DSP compatible) |
| Power-Down Mode | Auto or software-controlled |
| Resolution / Throughput Trade-off | Programmable (10b / 8b) |
| Architecture | SAR (successive-approximation register) |
| Encapsulado | 28-pin SOIC (DW), tape and reel |
| Tipo de montaje | Surface Mount |
| Estado RoHS | Compliant (G4 suffix = lead-free) |
Configuración de pines de TLV1562IDWRG4
| Pin 1 | CH3 — Analog input channel 3 |
| Pin 2 | CH2 — Analog input channel 2 |
| Pin 3 | CH1 — Analog input channel 1 |
| Pin 4 | CH0 — Analog input channel 0 |
| Pin 5 | AGND — Analog ground |
| Pin 6 | REF — Voltage reference input/output (2.5 V internal) |
| Pin 7 | AVDD — Analog supply voltage (3 V / 5 V) |
| Pin 8 | AGND — Analog ground |
| Pin 9 | SH1 — Sample-and-hold input 1 |
| Pin 10 | SH2 — Sample-and-hold input 2 |
| Pin 11 | NC — Not connected (per datasheet) |
| Pin 12 | CONVST — Conversion start input |
| Pin 13 | INT/CLK — Interrupt / external clock |
| Pin 14 | CS — Chip select (active low) |
| Pin 15 | RD — Read strobe (active low) |
| Pin 16 | WR — Write / mode-select strobe |
| Pin 17 | DVDD — Digital supply voltage |
| Pin 18 | DGND — Digital ground |
| Pin 19 | D0 — Parallel data output bit 0 (LSB) |
| Pin 20 | D1 — Parallel data output bit 1 |
| Pin 21 | D2 — Parallel data output bit 2 |
| Pin 22 | D3 — Parallel data output bit 3 |
| Pin 23 | D4 — Parallel data output bit 4 |
| Pin 24 | D5 — Parallel data output bit 5 |
| Pin 25 | D6 — Parallel data output bit 6 |
| Pin 26 | D7 — Parallel data output bit 7 |
| Pin 27 | D8 — Parallel data output bit 8 |
| Pin 28 | D9 — Parallel data output bit 9 (MSB) |
Aplicaciones típicas
TLV1562IDWRG4 es adecuado para 6 aplicacións: Multi-Channel Data Acquisition Systems, Portable Battery-Powered Instrumentation, Motor Control Feedback Loops, Optical Sensor Array Scanning, DSP-Based Audio and Video Processing, Industrial Process Control and PLC Analog Input Modules.
Multi-Channel Data Acquisition Systems
The TLV1562IDWRG4 is well-suited for multi-channel data-acquisition front ends because of its 4-input analog multiplexer, dual sample-and-hold amplifiers and 2 MSPS 10-bit throughput. Two S/H channels captured simultaneously let the system record a voltage and current pair at the same instant for power analysis, while the auto-scan sequencer cycles through CH0-CH3 without CPU intervention. Placed behind a small anti-alias RC filter (typically 1 kΩ / 10 nF) per channel and driven by a low-drift external reference, the TLV1562 delivers clean 10-bit conversions suitable for industrial instrumentation and process-control front ends.
Recomendado
Portable Battery-Powered Instrumentation
The TLV1562IDWRG4's auto- or software-controlled power-down mode drops supply current between conversion bursts, making it ideal for handheld multimeters, portable environmental monitors and battery-powered sensor loggers. The 4-input mux lets one chip scan four sensors (temperature, pressure, humidity, flow) without external analog switches, and the 28-SOIC package fits comfortably in a hand-held enclosure. Estimated: at a 1% duty cycle (1 ms active per 100 ms sleep) the average supply current falls well below 1 mA, extending battery life by an order of magnitude over continuously running SAR ADCs.
Recomendado
Motor Control Feedback Loops
In brushless-DC and field-oriented control (FOC) motor drives, the TLV1562IDWRG4's dual simultaneous sample-and-hold amplifiers let the controller capture two phase currents (via shunt sense amplifiers) at exactly the same instant - critical for accurate Clarke/Park transforms. The 4-input mux then reads the DC-link voltage and a thermistor input through the same ADC, reducing BOM cost by replacing two separate ADCs. The 2 MSPS throughput easily exceeds the typical 10-20 kHz current-loop bandwidth of a 6-step or sinusoidal BLDC drive, leaving plenty of margin for torque-ripple compensation loops.
Recomendado
Optical Sensor Array Scanning
The TLV1562IDWRG4's auto-scan mode and 4-channel mux make it a natural fit for scanning photodiode or phototransistor arrays in line-scan cameras, spectrometers and color sensors. Each of the four CH0-CH3 inputs can be tied to a wavelength-filtered photodiode through a transimpedance amplifier, with the SAR core digitizing all four channels in rapid sequence. The 2 MSPS throughput means a 4-channel array can be sampled at 500 kSPS per channel - more than adequate for industrial line-scan cameras running at tens of kHz line rates after accounting for the mux cycle.
Recomendado
DSP-Based Audio and Video Processing
The TLV1562IDWRG4's parallel microprocessor interface avoids the bottleneck of an SPI-based ADC in audio/video pipelines where hundreds of kilosamples per second must reach a DSP or ASIC in real time. Place the ADC on the external memory bus of a TMS320C55x or similar fixed-point DSP, gate the output register with CS/RD, and the DMA controller can stream conversion results without CPU intervention. The 10-bit resolution is sufficient for video chroma sampling, ambient-light metering and audio VU-metering rails; for full SNR-critical audio paths, however, a 16-bit ADC such as ADS1271 is more appropriate.
Recomendado
Industrial Process Control and PLC Analog Input Modules
In PLC and distributed I/O modules the TLV1562IDWRG4 can scan 4-20 mA loop-derived voltage signals (after a 250 Ω sense resistor) through its mux and report them via the parallel bus to the backplane MCU. The 28-SOIC package supports industrial temperature ranges and lead-free soldering, while the ±1 LSB INL/DNL ensures that 10-bit readings translate to approximately ±0.1% full-scale accuracy - well within the typical 0.5% accuracy class of industrial analog input modules. Use software power-down between scan cycles to keep module heat dissipation low in dense rack-mounted I/O systems.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para TLV1562IDWRG4 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | TLV1562IDW | TLV1562IPWR | TLV1562CPWR | MAX1300ECM+ |
|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices |
| Package | 28-pin SOIC (DW) | 28-pin SOIC (DW) - identical | 28-pin TSSOP (PW) - smaller | 28-pin TSSOP (PW) - smaller | 28-pin SSOP - smaller |
| Resolution | 10 bit | 10 bit | 10 bit | 10 bit | 12 bit |
| Max Sample Rate (10-bit mode) | 2 MSPS | 2 MSPS | 2 MSPS | 2 MSPS | 0.115 MSPS (12-bit mode) |
| Number of Analog Input Channels | 4 (with mux) | 4 | 4 | 4 | 8 |
| DNL (max) | ±1 LSB | ±1 LSB | ±1 LSB | ±1 LSB | ±1 LSB (12-bit) |
| Interface | Parallel | Parallel | Parallel | Parallel | Serial SPI/QSPI/MICROWIRE |
| Power-Down Mode | Yes (auto / software) | Yes | Yes | Yes | Yes |
| Approx. Qty-1 Unit Price (USD) | 9.20 | 8.95 | 9.50 | 8.40 | 11.20 |
Diferenciadores clave
- Higher throughput than ADI MAX1300 at the same pin count (frente a MAX1300ECM+)
- Dual simultaneous sample-and-hold amplifiers in the same 28-pin footprint (frente a TLV1562IPWR)
- Mature, widely-stocked TI part with parallel microprocessor interface (frente a MAX1300ECM+)
Notas de diseño
Estimated: the TLV1562IDWRG4 draws roughly 8-12 mA from AVDD at 5 V during continuous 2 MSPS conversion and drops to a few hundred microamps in software power-down. Decouple AVDD and DVDD with a 10 µF tantalum in parallel with a 0.1 µF ceramic placed within 5 mm of the supply pins; route AGND and DGND to a single star point under the IC to avoid digital-current ground bounce coupling into the analog input path.
Keep analog input traces short and guarded by a ground pour to minimize crosstalk between the four mux channels. Place the external reference bypass network (10 µF tantalum + 0.1 µF ceramic) at the REF pin with the ground return to the AGND star point. Route parallel digital output bus traces (D0-D9) away from the analog input traces and group them over a digital ground pour to avoid digital noise coupling into the SAR comparator.
Do not leave the REF pin floating - either enable the internal 2.5 V reference or drive it with a low-impedance external reference; a floating REF will cause wildly inaccurate conversions and excessive INL. Also, ensure CONVST is held low for at least one full conversion-clock period before re-triggering; pulses shorter than the acquisition window will produce non-monotonic output codes. Finally, the SH1 and SH2 inputs must settle to within ±0.5 LSB before CONVST - allow at least 200 ns of acquisition time at 5 V supply.
Información de cumplimiento
G4 suffix in TLV1562IDWRG4 denotes lead-free (RoHS-compliant) finish per TI datasheet ordering information. AEC-Q100 qualification status not applicable - this is not an automotive-qualified part. Conflict-minerals compliance per TI standard policy.
