MAX153EAP+T - 8-Bit 1Msps ADC | Maxim Integrated | SSOP-20
MPN： MAX153EAP+T ✓ 啟用中MAX153EAP+T 概覽
An analog-to-digital converter (ADC) translates continuous analog signals into discrete digital codes for processing by microcontrollers, DSPs, or FPGAs. The MAX153 belongs to the successive-approximation and flash ADC family hierarchy, using a half-flash technique that approximates true flash conversion at roughly one third of the die area. Within the broader data converter taxonomy, an ADC such as the MAX153EAP+T is a precision mixed-signal component that bridges analog sensors and digital systems, often feeding digital signal processors, microcontrollers, or instrumentation recording paths.
Key features include 8-bit resolution, 1 Msps minimum sampling rate, an external-reference interface, microprocessor-compatible parallel interface (mode 0), and a low shutdown current of approximately 1 µA. The half-flash core achieves a 660 ns conversion time without the power and silicon area penalty of a true 8-bit flash converter. The device supports both AC-specified (1 Msps) and guaranteed-by-design extended-temperature operation, and offers a simple CS-RD write-control interface for direct connection to most microcontrollers.
The device operates from a single +5 V supply or dual ±5 V supplies and offers 0 V to +5 V unipolar or ±5 V bipolar analog input ranges. The shutdown mode is engaged by forcing the POWERDN pin LOW, drawing only 1 µA typical, suiting battery-powered data acquisition. Built-in track-and-hold and an external-reference input provide design flexibility for applications needing temperature-compensated or precision references.
Typical applications include high-speed digital signal processing, servo control loops, portable or battery-powered data acquisition systems, and communication systems. Industrial grade temperature range covers -40°C to +85°C, while the SSOP-20 footprint simplifies layout in compact designs and is compatible with standard surface-mount assembly lines.
Designers should pay attention to the analog and digital supply pins, which must be properly bypassed with 10 µF electrolytic and 0.1 µF ceramic capacitors as close to the pins as possible to achieve the rated SNR. The reference pin requires a low-impedance source such as the MAX152 or a low-noise precision reference to maintain linearity; using a noisy reference will degrade SNR but not necessarily increase INL at 8 bits.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer datasheet alone.
直接替換替代品，適用於 MAX153EAP+T — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： MAX153EAP+T （相同外形與佔位） — 差異在於 Data Interface, Operating Temperature, Package, Architecture, Reference Type.
MAX153CAP+
✅ 直接替換📋 參考替代品（不在目錄中）
MAX153CAP+T
✅ 直接替換📋 參考替代品（不在目錄中）
MAX153EAP
✅ 直接替換聯絡詢價
查看資料表 →MAX153EAP-T
✅ 直接替換聯絡詢價
查看資料表 →MAX153EAP+T 最大額定值與電氣特性
| 解析度 | 8 bit |
| 取樣率 | 1 Msps |
| Conversion Time | 660 ns (typical) |
| Architecture | Half-Flash |
| Input Channels | 1 single-ended |
| Analog Supply Voltage | +5 V single or ±5 V dual |
| Digital Supply Voltage | +5 V single or +5 V (dual mode) |
| 輸入電壓範圍 | 0 V to +5 V unipolar or ±5 V bipolar |
| Reference Type | External |
| Data Interface | Parallel (microprocessor compatible) |
| 關機電流 | 1 µA typical |
| 工作溫度 | -40°C to +85°C (industrial grade) |
| 封裝 | 20-pin SSOP (EAP) |
| 安裝類型 | Surface Mount |
| Power-Down Pin | Yes (POWERDN, active-low) |
MAX153EAP+T 腳位配置
| 腳位 1 | OUT — Analog signal input to ADC |
| 腳位 2 | D0 — Digital data output bit 0 (LSB) |
| 腳位 3 | D1 — Digital data output bit 1 |
| 腳位 4 | D2 — Digital data output bit 2 |
| 腳位 5 | D3 — Digital data output bit 3 |
| 腳位 6 | D4 — Digital data output bit 4 |
| 腳位 7 | D5 — Digital data output bit 5 |
| 腳位 8 | D6 — Digital data output bit 6 |
| 腳位 9 | D7 — Digital data output bit 7 (MSB) |
| 腳位 10 | GND — Digital ground |
| 腳位 11 | VDD — +5V digital supply |
| 腳位 12 | RD — Read strobe, active-low |
| 腳位 13 | INT — Conversion complete interrupt, active-low |
| 腳位 14 | CS — Chip select, active-low |
| 腳位 15 | MODE — Operating mode select (Read or Write-Mode) |
| 腳位 16 | WR — Write strobe / Start conversion, active-low |
| 腳位 17 | POWERDN — Power-down input, active-low |
| 腳位 18 | REF — External reference voltage input |
| 腳位 19 | VSS — Analog ground (or -5V negative supply) |
| 腳位 20 | VCC — Analog +5V supply |
典型應用
MAX153EAP+T 適用於 6 應用s: Servo Motor Control Loop, Portable Battery-Powered Data Acquisition, High-Speed Digital Signal Processing, Communication Receiver Baseband Sampling, Industrial Process Control Measurement, Automated Test Equipment Digitizer.
Servo Motor Control Loop
The MAX153EAP+T fits servo motor control loops with its 1 Msps sampling rate and 660 ns conversion time, providing the bandwidth needed to digitize motor current and position feedback signals at update rates up to several kHz after DSP/FPGA decimation. The MAX153's single +5 V supply and 0-5 V unipolar input range align directly with current-sense amplifier outputs, and the 8-bit resolution matches the precision typically required for torque and velocity control in industrial servo drives. Unlike 12-bit ADCs that overshoot the noise floor and waste conversion time, the 8-bit MAX153 keeps the pipeline full and reduces loop latency. Placed between the current sense shunt and the microcontroller interrupt handler, it accepts the 8-bit parallel bus directly. It dissipates roughly 30 mW active and only 5 µW when the POWERDN pin is asserted between control bursts, suiting thermally-constrained motion control boards.
推薦
Portable Battery-Powered Data Acquisition
The MAX153EAP+T serves portable battery-powered DAQ modules by combining 1 µA typical shutdown current with a single +5 V supply that derives directly from a boost converter off a Li-ion cell. At 1 Msps it captures transients from vibration sensors and accelerometers, while the POWERDN pin lets the MCU clock-gate the ADC between bursts, extending battery life by 10-100× versus continuous operation. Industrial -40°C to +85°C operation supports outdoor sensor logging in unattended remote installations. The 20-pin SSOP footprint measures under 5 mm × 7 mm, suiting miniaturized wearables or handheld instruments. A small 0.1 µF bypass cap plus a MAX152 or REF02 low-noise reference deliver a full precision acquisition chain in well under 1 cubic inch of board area.
推薦
High-Speed Digital Signal Processing
The MAX153EAP+T targets high-speed DSP front-ends sampling 1 Msps from signals such as ultrasonic transducers, audio analyzers, or vibration monitors where the 8-bit resolution captures envelope and time-domain information needed for FFT and threshold detection. The MAX153's half-flash architecture delivers 660 ns conversion time, minimizing time-domain interleaving errors, while its parallel data bus clocks the result straight into a DSP X-memory bus without glue logic. Pin-for-pin compatibility with the MAX153 family enables ramp-up to 12-bit ADCs like MAX1253 if a design needs more SNR. Power dissipation at full 1 Msps is ~30 mW active, dropping to negligible when the MCU halts the sample clock - efficient enough for real-time continuous DSP at the edge. Industrial temperature grade allows deployment in factory or vehicle-mounted DSP analyzer nodes.
推薦
Communication Receiver Baseband Sampling
In communication receivers the MAX153EAP+T handles baseband I/Q signal sampling at 1 Msps, capturing demodulated audio or low-frequency symbol data from IF strips. Its ±5 V bipolar input mode accepts differentially-amplified quadrature signals from double-balanced mixers, while the half-flash architecture sustains throughput required for symbol rates up to 200-400 ksps after shaping. The MAX153's shutdown pin allows system-level power gating when the receiver is in standby, conserving battery for handheld radios. Housed in 20-pin SSOP, it slots into existing communication module designs without disturbing the 0.65 mm pitch land pattern. CMOS parallel bus handshake matches directly with low-end DSP cores, eliminating glue logic and reducing BOM cost versus serial ADCs with the same throughput.
推薦
Industrial Process Control Measurement
The MAX153EAP+T is well-suited for industrial process control measurement loops where 8-bit resolution and 1 Msps throughput digitize transducer outputs such as RTD-conditioned signals, pressure transducer voltages, and flow-meter pulse trains. Its 0-5 V or ±5 V analog input range accepts the standard 4-20 mA sense resistor voltage outputs of PLC analog input cards without additional signal conditioning. The MAX153's half-flash converter achieves 8-bit INL sufficient for indicator panel-level precision without overspending on a 12-bit ADC for trend monitoring. Industrial -40°C to +85°C operation tolerates harsh panel cabinet environments, and the SSOP-20 surface-mount package supports automated assembly on densely populated PLC backplanes. POWERDN enables duty-cycled sampling per IEC 61131 scan cycles for low standby power.
推薦
Automated Test Equipment Digitizer
The MAX153EAP+T serves cost-sensitive ATE digitizers measuring analog test points on production-line electronics where 1 Msps sampling and 8-bit resolution capture transient signals such as voltage regulators' soft-start behavior or comparator outputs. The half-flash design sustains repetitive sampling on every test cycle without the latency of successive-approximation ADCs, and the 1 µA shutdown mode enables test fixture sleep between units under test, conserving fixture power. Its SSOP-20 form factor integrates into a portable or rack-mount ATE chassis whose 0.65 mm pitch land pattern accommodates dense tester pin layouts. External reference compatibility lets test engineers calibrate full-scale against the ATE's primary reference for traceable measurements. Combined with the MAX153 family pin compatibility, the same tester fixture can host upgraded 12-bit MAX1253 ADCs as test specifications tighten across product generations.
推薦
推薦產品摘要
工程參考資料，適用於 MAX153EAP+T — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MAX153CAP+ | MAX153CAP+T | MAX153EAP | MAX153EAP-T |
|---|---|---|---|---|---|
| Package | SSOP-20 (EAP) | SSOP-20 - same | SSOP-20 - same | SSOP-20 - same | SSOP-20 - same |
| Brand | Analog Devices / Maxim Integrated | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 8 bit | 8 bit | 8 bit | 8 bit | 8 bit |
| Sampling Rate | 1 Msps | 1 Msps | 1 Msps | 1 Msps | 1 Msps |
| Architecture | Half-Flash | Half-Flash | Half-Flash | Half-Flash | Half-Flash |
| Supply Voltage | Single +5V or dual +/-5V | Single +5V or dual +/-5V | Single +5V or dual +/-5V | Single +5V or dual +/-5V | Single +5V or dual +/-5V |
| Temperature Grade | Industrial -40C to +85C | Industrial -40C to +85C | Commercial 0C to +70C | Industrial -40C to +85C | Industrial -40C to +85C |
| Shipping Carrier | Tape & Reel | Tube | Tape & Reel | Tube | Tape & Reel |
主要差異化特點
- Tap-and-Reel shipping carrier optimized for SMT production (對比MAX153EAP (Tube carrier))
- Industrial -40C to +85C temperature grade (對比MAX153CAP+T)
- Half-Flash architecture with 660 ns conversion time (對比MAX1225CTC+)
設計說明
The MAX153EAP+T draws ~30 mW at 1 Msps active operation but only 1 µA typical when POWERDN is asserted low. Add a 10 µF electrolytic in parallel with a 0.1 µF ceramic within 5 mm of VDD and VCC pins; without proper bypassing, the high-speed internal comparators couple switching transients onto the supply rail and inject nonlinear error into the result. Use separate digital and analog ground returns joined at a single point under the IC's exposed pad (if used) to avoid ground bounce.
Place the external reference bypass (10 µF + 0.1 µF ceramic in parallel) as close as possible to the REF pin to achieve rated INL. Route the analog input trace away from digital data bus traces and clock signals; an AGND guard ring around the input signal pin reduces coupling from the parallel bus. The 0.65 mm SSOP land pattern requires IPC-7351 Class 2 footprint tolerances with no-clean type-3 paste for reliable assembly at standard 245°C reflow.
Estimated: Choosing an external reference with >5 mV RMS noise on the REF pin will degrade SNR without significant INL change at 8 bits - the half-flash architecture is modestly reference-noise-tolerant. Avoid driving the analog input above VCC + 0.3 V or below VSS - 0.3 V as the input multiplexer does not include input protection diodes. Always deassert POWERDN at least 1 µs before WR pulse to allow internal bias currents to settle, or first-sample accuracy suffers.
Keep the parallel data bus traces matched (length-matched within 5 mm) and use 22-33 Ω series damping resistors near the source if the bus length exceeds 50 mm. Decouple each VDD/VCC with its own pair of capacitors (10 µF + 0.1 µF) - do not share bypass caps with other digital ICs. Route WR, RD, and INT as point-to-point connections; avoid stubs that cause reflections and false triggering at the 660 ns conversion time scale.
合規資訊
RoHS compliant per Maxim Integrated product page. AEC-Q100 not applicable to industrial/consumer ADC. Lead-free and conflict-minerals declaration available from manufacturer.
