ADC10064CIWMX - 10-Bit 600ns 4-Input ADC with MUX | Texas Instruments
MPN: ADC10064CIWMX ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.95 | $5.95 |
| 10 | $5.35 | $53.50 |
| 100 | $4.78 | $478.00 |
| 500 | $4.3 | $2,150.00 |
| 1,000 | $3.85 | $3,850.00 |
ADC10064CIWMX Overview
An analog-to-digital converter (ADC) is a mixed-signal IC that quantizes a continuous analog input voltage into a discrete digital code. The 10-bit resolution of the ADC10064CIWMX yields 1024 quantization steps; when paired with a 5 V full-scale reference, this corresponds to a least-significant bit (LSB) of approximately 4.88 mV. In the broader taxonomy, the ADC10064CIWMX belongs to the successive-approximation / multi-step sub-ranging family of ADCs, which sits between low-speed SAR converters and high-speed flash ADCs in the resolution-versus-speed spectrum.
Key specifications include a 600 ns conversion time (approximately 1.6 MSPS throughput in single-channel mode), 4 single-ended analog input channels, an integrated sample-and-hold amplifier, a 0V to VREF analog input range, and a parallel digital output bus. The ADC operates from a single +5V analog supply, plus a separate digital supply pin for noise isolation, and supports both hardware and software channel selection.
The device is built on a CMOS process with a proprietary multi-step* architecture. This technique divides the conversion into coarse and fine flash stages, reducing the number of comparators compared to a pure flash design. The integrated MUX eliminates the need for an external analog switch, while the sample-and-hold holds the input stable during the conversion window, allowing accurate acquisition of fast-moving signals.
Typical applications include process control and instrumentation, portable data loggers, motor control feedback loops, automotive sensor interfaces (industrial grade -40C to +85C), and battery monitoring systems. The 4-channel MUX is well-suited for multi-sensor environments where several analog signals share a single ADC resource.
When designing with this ADC, place 0.1 uF decoupling capacitors close to both the AVCC and DVCC supply pins and tie the AGND and DGND planes together at a single star point under the IC. Be aware that the wide-body SOIC package has a larger footprint than a TSSOP-28, so PCB area should be budgeted accordingly. This page combines distributor pricing, drop-in alternatives, and design notes that go beyond the manufacturer datasheet to accelerate your design-in.
Drop-in alternatives for ADC10064CIWMX — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ADC10064CIWMX (same form factor and footprint) — differing in Resolution, Input Type, Operating Temperature Range, Package, Analog Supply Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADC10062CIWM/NOPB
✅ Drop-In✓ In Stock
$5.85 / Unit
View Datasheet →ADC10064CIWMX/NOPB
✅ Drop-In📋 Reference alternative (not in catalog)
ADC10158CIWM
✅ Drop-In📋 Reference alternative (not in catalog)
ADC1003S050TS/C1
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$7.4 / Unit
View Datasheet →ADC0808S125HW-C18
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$11.65 / Unit
View Datasheet →ADC10064CIWMX Maximum Ratings & Electrical Characteristics
| Resolution | 10 bit |
| Number of Input Channels | 4 |
| Conversion Time | 600 ns |
| Sample Rate | 800 kSamples/s (per chipdig listing) |
| Conversion Architecture | Multi-step (sub-ranging flash) |
| Input Type | Single-ended, analog multiplexer |
| Analog Input Range | 0 V to VREF |
| Analog Supply Voltage (AVCC) | +5 V (typical) |
| Digital Supply Voltage (DVCC) | +5 V (typical) |
| Sample-and-Hold | Integrated on-chip |
| Output Interface | Parallel (10-bit) |
| Operating Temperature Range | -40 C to +85 C (industrial grade) |
| Package Type | 28-SOIC (Wide, 7.5 mm body) |
| Mounting Type | Surface Mount |
| Screening Level | Industrial |
ADC10064CIWMX Pin Configuration
| Pin 1 | VREF — Reference voltage input (sets full-scale range) |
| Pin 2 | AVCC — Analog supply voltage (+5V typical) |
| Pin 3 | IN0 — Analog input channel 0 |
| Pin 4 | IN1 — Analog input channel 1 |
| Pin 5 | IN2 — Analog input channel 2 |
| Pin 6 | IN3 — Analog input channel 3 |
| Pin 7 | AGND — Analog ground |
| Pin 8 | A0 — MUX address select input bit 0 |
| Pin 9 | A1 — MUX address select input bit 1 |
| Pin 10 | CONVERT — Conversion start input |
| Pin 11 | READ — Read strobe for parallel output |
| Pin 12 | INT — Interrupt / end-of-conversion output |
| Pin 13 | NC — Not connected (per datasheet) |
| Pin 14 | D0 — Parallel data output bit 0 (LSB) |
| Pin 15 | D1 — Parallel data output bit 1 |
| Pin 16 | D2 — Parallel data output bit 2 |
| Pin 17 | D3 — Parallel data output bit 3 |
| Pin 18 | D4 — Parallel data output bit 4 |
| Pin 19 | D5 — Parallel data output bit 5 |
| Pin 20 | D6 — Parallel data output bit 6 |
| Pin 21 | D7 — Parallel data output bit 7 |
| Pin 22 | D8 — Parallel data output bit 8 |
| Pin 23 | D9 — Parallel data output bit 9 (MSB) |
| Pin 24 | OF — Overflow / out-of-range flag |
| Pin 25 | DGND — Digital ground |
| Pin 26 | DVCC — Digital supply voltage (+5V typical) |
| Pin 27 | MODE — Read mode select (continuous vs latched) |
| Pin 28 | SHIELD — Analog shield / guard ring connection |
Typical Applications
ADC10064CIWMX is suitable for 6 applications: Process Control and Industrial Data Acquisition, Portable Battery-Operated Data Loggers, Motor Control Feedback Loops, Automotive Sensor Interfaces (Industrial Grade), Battery Monitoring and Management Systems, Medical and Patient Monitoring Instrumentation.
Process Control and Industrial Data Acquisition
The ADC10064CIWMX fits process-control boards because its 4-channel input multiplexer matches the typical transducer count (pressure, flow, temperature, level) on a single 4-20 mA or 0-10 V analog front-end. The 10-bit resolution provides 4.88 mV LSB at a 5 V reference, sufficient for monitoring signals with 0.5% accuracy. The 600 ns conversion time supports scan rates above 1 kHz per channel when multiplexing. Industrial -40C to +85C temperature grade ensures operation in factory-floor enclosures. A common implementation routes four sensor signals through signal-conditioning op-amps into the ADC10064's MUX inputs, with channel selection driven by an external MCU.
Recommended
Portable Battery-Operated Data Loggers
Battery-powered data loggers benefit from the ADC10064CIWMX's 4-channel integration because the on-chip MUX eliminates the need for an external analog switch IC, reducing both PCB area and quiescent current draw. The 10-bit resolution is adequate for environmental monitoring (temperature, humidity, voltage, current) where 1% accuracy is sufficient. The +5V analog and digital supplies allow direct connection to a 5V-regulated Li-ion battery stack. A typical logger circuit uses the ADC10064 to scan four sensor channels every 100 ms, with results stored in external EEPROM for later retrieval.
Recommended
Motor Control Feedback Loops
Closed-loop motor control systems use the ADC10064CIWMX to digitize current-sense, back-EMF, and position-feedback signals with sub-microsecond latency. The 600 ns conversion time enables control loop update rates above 50 kHz when sampling one channel per PWM cycle, well above the bandwidth of typical DC and stepper motor mechanical dynamics. The parallel 10-bit output allows direct connection to a microcontroller or DSP without serial-interface overhead. A standard implementation pairs the ADC10064 with three shunt resistors for phase-current sensing, plus an additional channel for DC-bus voltage monitoring.
Recommended
Automotive Sensor Interfaces (Industrial Grade)
Within industrial-grade automotive subsystems, the ADC10064CIWMX reads multiple sensor inputs (temperature, throttle position, MAP pressure, battery voltage) through its 4-channel MUX. The wide -40C to +85C operating range covers most in-cabin and under-hood electronics except the most extreme engine-mounted applications. The parallel output interface simplifies firmware on the vehicle ECU. For full AEC-Q100 automotive qualification, however, an AEC-Q100-qualified variant such as a Q1 suffix part should be selected instead; the standard ADC10064CIWMX is suited to non-safety automotive subsystems.
Recommended
Battery Monitoring and Management Systems
Multi-cell battery management systems (BMS) use the ADC10064CIWMX to monitor individual cell voltages and pack current through its 4-channel MUX. The 10-bit resolution is sufficient for cell balancing decisions in Li-ion packs with cell counts up to 4S using a single ADC IC, or up to 16S using external MUX expansion. The integrated sample-and-hold captures cell voltages accurately during transient load steps. The industrial temperature grade supports under-hood or battery-pack-mounted BMS electronics. A typical BMS routes cell voltages through resistor dividers into the ADC inputs, with periodic conversions triggered by the BMS host MCU.
Recommended
Medical and Patient Monitoring Instrumentation
Patient monitoring devices (non-life-critical) benefit from the ADC10064CIWMX's 4-channel MUX for capturing multiple physiological signals (SpO2, respiration, temperature, auxiliary ECG lead). The 10-bit resolution at 5 V reference provides 4.88 mV LSB, sufficient for non-diagnostic patient monitoring where trend data matters more than absolute precision. The integrated sample-and-hold ensures accurate acquisition of pulsatile signals like pulse oximetry waveforms. For diagnostic-grade ECG and SpO2, a 16-bit or higher ADC such as the AD7691 family is preferred. The ADC10064CIWMX suits wellness devices and consumer-grade fitness equipment.
Recommended
Recommended Products Summary
Engineering reference data for ADC10064CIWMX — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADC10062CIWM/NOPB | ADC10064CIWMX/NOPB | ADC10158CIWM | ADC1003S050TS/C1 | ADC0808S125HW-C18 |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 28-SOIC (Wide, 7.5 mm) | 28-SOIC (Wide, 7.5 mm) - same | 28-SOIC (Wide, 7.5 mm) - same | 28-SOIC (Wide, 7.5 mm) - same | 28-SOIC (Wide, 7.5 mm) - same | 28-SOIC (Wide, 7.5 mm) - same |
| Resolution | 10 bit | 10 bit | 10 bit | 10 bit | 10 bit | 8 bit |
| Number of Input Channels | 4 | 2 | 4 | 8 | 1 | 8 |
| Conversion Architecture | Multi-step (sub-ranging flash) | Multi-step (sub-ranging flash) | Multi-step (sub-ranging flash) | Multi-step (sub-ranging flash) | SAR | SAR |
| Output Interface | Parallel (10-bit) | Parallel (10-bit) | Parallel (10-bit) | Parallel (10-bit) | Parallel (10-bit) | Parallel (8-bit) |
| Sample-and-Hold | Integrated | Integrated | Integrated | Integrated | Integrated | Integrated |
| Operating Temperature Range | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Key Differentiators
- On-chip 4-input multiplexer eliminates external analog switch ICs (vs Discrete SAR ADC with external MUX)
- Multi-step (sub-ranging flash) architecture delivers 600 ns conversion in 28-SOIC wide-body package (vs ADC10158CIWM (10-bit, 8-channel))
- Integrated sample-and-hold captures fast-moving signals without external buffer (vs Bare flash ADC without sample-and-hold)
Design Notes
The ADC10064CIWMX requires separate AVCC and DVCC pins that must both be tied to +5V. Place a 0.1 uF ceramic decoupling capacitor within 5 mm of each supply pin and a 10 uF bulk tantalum capacitor at the IC's analog supply trace. AVCC and DVCC should be connected at a single star point near the IC rather than daisy-chained from a regulator. Per TI guidelines, the AVCC and DVCC pins can be tied to the same +5V rail if separate analog/digital regulators are not available, but performance will degrade due to digital switching noise coupling into the analog section.
Use a unified ground plane divided into analog and digital sections, joined at a single point directly beneath the ADC10064CIWMX's AGND/DGND pins. Route analog input traces (IN0-IN3) and the VREF trace away from the parallel digital output bus (D0-D9) and the CONVERT/READ strobe lines to minimize digital-to-analog crosstalk. Per TI layout guidelines, a guard ring around the analog input pins connected to AGND reduces leakage and noise pickup. Keep the analog input traces as short as possible (under 25 mm) to minimize parasitic capacitance that could affect the sample-and-hold acquisition time.
Do not apply input voltages above VREF or below AGND to the IN0-IN3 channels, as this will forward-bias the input ESD diodes and may damage the device or at minimum saturate the output code. The VREF pin must be well-bypassed with both a 0.1 uF ceramic and a 10 uF tantalum capacitor; an unstable VREF is the most common cause of noisy ADC readings. Estimated: with VREF = 5V and 10-bit resolution, the LSB is approximately 4.88 mV, so any VREF ripple above 5 mV peak-peak will be visible as 1-LSB conversion noise.
Compliance Information
RoHS and lead-free status not explicitly stated in verified web data; the ADC10064CIWMX/NOPB variant suffix suggests lead-free finish. AEC-Q100 not qualified - use Q1 suffix parts for full automotive qualification. Industrial temperature grade -40C to +85C confirmed.
