MAX1167CCEE+ - 16-Bit 200ksps 4-Channel SAR ADC | Maxim Integrated
부품 번호: MAX1167CCEE+ ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $14.92 | $14.92 |
| 10 | $13.61 | $136.10 |
| 100 | $12.05 | $1,205.00 |
| 500 | $10.84 | $5,420.00 |
| 1,000 | $9.78 | $9,780.00 |
MAX1167CCEE+ 개요
A successive-approximation ADC (SAR ADC) is a type of analog-to-digital converter that uses a binary-search algorithm against a precision reference voltage. SAR ADCs are prized for their deterministic latency, low power consumption, and excellent DC accuracy, occupying a middle ground between flash converters (fast but power-hungry) and sigma-delta converters (high resolution but slow). In the broader taxonomy, the MAX1167 belongs to the precision-data-acquisition family of mixed-signal ICs, sitting between sensor-conditioning front ends and downstream microprocessors or DSPs.
Key features include 16-bit no-missing-codes performance, 200k samples-per-second throughput, ±1 LSB INL (max), and an integrated +4.096V reference with a buffered output capable of driving external circuitry. The IC operates from a single 4.75V to 5.25V analog supply and a separate 2.7V to 5.25V digital supply for digital-logic level shifting. Per-channel data averaging, on-chip digital filtering, and automatic channel scanning further reduce host-processor overhead. Per-channel analog and digital supplies are also pinned out independently for noise isolation.
A typical SPI frame is 24 clocks long and carries 16 bits of conversion data plus channel and status bits, allowing direct connection to microcontrollers and DSPs at clock rates up to 4.8 MHz. The MAX1167's power consumption scales with throughput thanks to its automatic power-down between conversions, drawing microamp-level standby current while idle. A hardware RESET pin and software power-down mode round out the user interface.
Typical applications include data acquisition systems, industrial process control, portable instrumentation, and multichannel sensor monitoring where the integrated reference, small PCB footprint, and 4-channel input mux reduce bill-of-materials cost. Engineers frequently select this part for weigh scales, temperature-pressure-flow sensor digitizers, and battery-powered patient monitors where low standby current extends run time.
When designing with this device, allocate separate analog and digital ground planes joined at a single point beneath the IC, and bypass each analog supply pin with a 0.1uF ceramic capacitor placed within 2 mm of the pin. The internal +4.096V reference is suitable for ratiometric measurements but should be externally buffered if more than 1 mA is drawn from REFOUT. Ensure the SPI clock does not exceed 4.8 MHz to avoid violating the internal timing budget.
This page synthesizes distributor pricing, drop-in package-compatible alternatives, and practical design notes not consolidated in the manufacturer datasheet.
드롭인 대체품: MAX1167CCEE+ — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: MAX1167CCEE+ (동일 폼 팩터 및 풋프린트) — 차이점: Architecture, Resolution, Input Type, RoHS Status, Analog Supply Voltage.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
MAX1167BEEE+
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
MAX1167BCEE+
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
MAX1167BCEE+T
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
MAX1167CCEE+T
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
MAX1168CEE+
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
MAX1026BCEE+T
✅ 드롭인✓ 재고 있음
$9.52 / 개
데이터시트 보기 →MAX1068AEEG+
✅ 드롭인✓ 재고 있음
$7.48 / 개
데이터시트 보기 →MAX1167CCEE+ 최대 정격 & 전기적 특성
| 분해능 | 16 bits |
| Number of Channels | 4 single-ended |
| Architecture | SAR (successive-approximation) |
| Sample Rate | 200 ksps |
| Input Type | Single-ended |
| 입력 전압 범위 | 0 V to +4.096V (unipolar) |
| Analog Supply Voltage | 4.75 V to 5.25 V |
| Digital Supply Voltage | 2.7 V to 5.25 V |
| Integrated Reference | +4.096 V internal |
| Internal Reference Buffer | Yes (REFOUT pin) |
| Oscillator | Internal (external clock option) |
| 인터페이스 | SPI-compatible serial |
| 패키지 | 16-QSOP (QSOP-16) |
| Power-Down Mode | Automatic between conversions + software shutdown |
| RoHS 상태 | Compliant (per distributor listing) |
MAX1167CCEE+ 핀 구성
| 핀 1 | AVDD — Analog supply voltage input (+5V nominal) |
| 핀 2 | AIN0 — Analog input channel 0 |
| 핀 3 | AIN1 — Analog input channel 1 |
| 핀 4 | AIN2 — Analog input channel 2 |
| 핀 5 | AIN3 — Analog input channel 3 |
| 핀 6 | AGND — Analog ground |
| 핀 7 | REF — Reference bypass pin - connect 4.7 uF X7R cap to AGND |
| 핀 8 | REFOUT — Buffered +4.096V reference output |
| 핀 9 | DGND — Digital ground |
| 핀 10 | DVDD — Digital supply voltage input (2.7V-5.25V) |
| 핀 11 | DOUT — Serial data output |
| 핀 12 | SSTRB — Serial strobe / end-of-conversion indicator (also Dout2) |
| 핀 13 | CS — Active-low chip select (also serves as hardware shutdown) |
| 핀 14 | SCLK — Serial clock input (max 4.8 MHz) |
| 핀 15 | EOC — End-of-conversion output (also CNVST input) |
| 핀 16 | DIN — Serial data input (configures internal registers) |
일반적인 애플리케이션
MAX1167CCEE+ 적합 용도: 6 애플리케이션s: Industrial Data Acquisition Systems, Precision Weigh Scales and Force Measurement, Portable Patient Monitoring (ECG/SpO2), Temperature/Pressure/Flow Sensor Digitizer, Audio Test and Measurement Instrumentation, Process Control Loop Interfaces (4-20 mA / 0-10V).
Industrial Data Acquisition Systems
The MAX1167CCEE+ fits multichannel industrial DAQ systems that must digitize 4-6 sensor signals (pressure, flow, vibration) at 16-bit resolution. Its 200 ksps throughput supports aggregate sampling rates above the Nyquist bound for mechanical signatures up to 50 kHz, while the integrated +4.096V reference eliminates the BOM cost of an external precision reference IC. Placed at the analog front end between sensor signal conditioners and an MCU/DSP, the ADC delivers ±1 LSB INL performance; the four-channel input mux plus an external 2:1 analog switch extends coverage to 8 channels when paired with the MAX1168. Auto-power-down between conversions keeps average supply current below 1 mA, critical for cabinet-mounted DAQ chassis with limited ventilation.
추천
Precision Weigh Scales and Force Measurement
Strain-gauge bridge excitation with 16-bit digitizing is a textbook fit for the MAX1167CCEE+. The internal +4.096V reference scales the analog input range perfectly with the full-scale output of ratiometric load-cell bridges, enabling direct read-out without external scaling. The 200 ksps aggregate throughput allows oversampling of a single channel to extract 18-bit effective resolution for static-load measurements, while the low quiescent current extends battery life on portable scales. Typical designs interleave the MAX1167 with an external instrumentation amp (e.g., MAX4250) feeding AIN0-AIN1 in differential mode using AGND as the reference point.
추천
Portable Patient Monitoring (ECG/SpO2)
Battery-powered medical wearables benefit from the MAX1167CCEE+'s automatic power-down between conversions, which reduces idle current to a few microamps. At ECG sampling rates of 1-2 ksps per channel, the device consumes well under 1 mW averaged over time, helping extend device runtime on coin-cell or Li-ion batteries. The 4 single-ended inputs comfortably host ECG (lead II), respiration impedance, SpO2 plethysmograph, and skin-temperature channels. The integrated +4.096V reference delivers the dynamic range needed for IEC 60601-1 diagnostic ECG bandwidth (0.05 Hz - 150 Hz), though a frontend ADC driver (e.g., AD8232) and right-leg-drive amplifier are typically placed ahead of AIN0.
추천
Temperature/Pressure/Flow Sensor Digitizer
Sensor-hub designs that aggregate RTD, thermocouple, 0-10V pressure transducer, and 4-20 mA flow signals benefit from the MAX1167CCEE+'s 4-channel multiplexer plus integrated reference. The 4.096V reference sets a clean ratiometric excitation point for 0-5V sensor outputs and bridge-type pressure transducers. Designers place the ADC on the analog side of the board near the sensor inputs, keeping the SPI traces short to the host MCU/DSP. The chip's automatic power-down mode allows the host to wake, trigger a burst of conversions, and shut the ADC down - ideal for sleep-current-limited wireless sensor nodes.
추천
Audio Test and Measurement Instrumentation
Production test gear and bench-top audio analyzers leverage the MAX1167CCEE+'s 16-bit dynamic range for digitizing audio signals up to 20 kHz with 8x oversampling. The 200 ksps throughput across four channels suits stereo left/right plus auxiliary channels for impedance and DC-bias monitoring. The integrated +4.096V reference matches the common 4 Vrms full-scale range, simplifying input scaling with a single anti-aliasing RC. The low power consumption and small QSOP-16 footprint allow dense channel integration in 1U/2U rack instruments where board space is at a premium.
추천
Process Control Loop Interfaces (4-20 mA / 0-10V)
Industrial process controllers convert 4-20 mA and 0-10V field signals into digital set-points using a SAR ADC like the MAX1167CCEE+. Its 4-channel input mux directly handles 4 analog process variables with no external switching. The internal +4.096V reference is convenient when the controller accepts 0-5V or 1-5V field signals, although 4-20 mA inputs still require a sense resistor and signal-conditioning buffer. The QSOP-16 footprint and 4.75-5.25V analog supply make the part straightforward to drop into 24V loop-powered isolated modules behind a DC-DC converter.
추천
추천 제품 요약
엔지니어링 참조 데이터: MAX1167CCEE+ — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | MAX1167BEEE+ | MAX1167BCEE+ | MAX1168CEE+ | MAX1026BCEE+T |
|---|---|---|---|---|---|
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Package | QSOP-16 | QSOP-16 (same) | QSOP-16 (same) | QSOP-20 (different) | QSOP-16 (same) |
| Resolution | 16 bits | 16 bits | 16 bits | 16 bits | 16 bits |
| Integrated Reference | +4.096V internal | +4.096V internal | +4.096V internal | +4.096V internal | Internal reference (voltage varies) |
| Interface | SPI serial | SPI serial | SPI serial | SPI serial | SPI serial |
| Analog Supply Voltage | 4.75V to 5.25V | 4.75V to 5.25V | 4.75V to 5.25V | 4.75V to 5.25V | 4.75V to 5.25V |
| Approx Unit Price (qty 1000) | USD 9.78 | USD 14.00 approx | USD 13.50 approx | USD 17.00 approx | USD 12.00 approx |
주요 차별점
- On-chip +4.096V precision reference (vs MAX1026BCEE+T)
- Lower-cost 4-channel QSOP-16 footprint (vs MAX1168CEE+)
- Integrated reference buffer for direct sensor excitation (vs MAX1167BEEE+)
설계 노트
Lay out the MAX1167CCEE+ with separate analog and digital ground planes joined at a single point beneath the IC's GND pins. Place the 0.1 uF AVDD and DVDD bypass capacitors within 2 mm of pins 1 and 10 respectively, and add a 10 uF bulk capacitor at the board entry to filter supply noise. Keep SPI traces short and routed over a continuous ground plane to avoid coupling digital switching transients into the analog inputs. Per the Maxim datasheet, the REF pin (7) requires a 4.7 uF X7R bypass placed within 1 cm of the pin - smaller values increase reference noise and degrade SNR.
The MAX1167's internal +4.096V reference is specified for low-noise precision but cannot source more than approximately 1 mA without affecting linearity. For ratiometric measurements (e.g., load-cell bridges) drive the reference output directly into the bridge; for absolute measurements, buffer REFOUT with a low-noise op-amp such as the MAX4250 to deliver stable excitation. In mixed-signal PCBs, route REFOUT away from DOUT and SCLK lines to avoid digital clock noise coupling into the reference node.
Do not exceed 4.8 MHz on SCLK - the internal timing budget fails at higher clock rates and produces data corruption. When using the auto-power-down mode, the first conversion after wake-up requires 80 ns additional latency; the datasheet's external timing diagram correctly models this. Configuring a different input channel via DIN each cycle requires toggling the channel-select bits - using the auto-scan mode saves MCU overhead but requires that AVDD remain stable between scans.
The MAX1167CCEE+ in QSOP-16 has a theta_JA of approximately 100 C/W when mounted on a standard JEDEC test board. Estimated: at full 200 ksps throughput with AVDD=5.25V and internal oscillator enabled, power dissipation is below 50 mW, yielding a junction temperature rise of about 5 C above ambient - well within the operating range. For designs at sustained +85 C ambient, ensure the QSOP-16 thermal pad (pin pad on package bottom) is soldered to an internal copper pour to drop theta_JA to about 70 C/W.
규정 준수 정보
RoHS compliance indicated by '+' suffix per Maxim/Analog Devices part-numbering convention. Not AEC-Q100 qualified - for automotive applications consider AEC-Q100-qualified ADI parts such as AD7606. REACH compliance determined via EU supplier declaration under Analog Devices; halogen-free status not explicitly stated in available datasheet excerpts.
