MAX153EAP+T - 8-Bit 1Msps ADC | Maxim Integrated | SSOP-20
MPN: MAX153EAP+T ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $11.2 | $11.20 |
| 10 | $10.08 | $100.80 |
| 100 | $8.96 | $896.00 |
| 500 | $7.84 | $3,920.00 |
| 1,000 | $6.72 | $6,720.00 |
MAX153EAP+T Overview
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.
Drop-in alternatives for MAX153EAP+T — 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 MAX153EAP+T (same form factor and footprint) — differing in Data Interface, Operating Temperature, Package, Architecture, Reference Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MAX153CAP+
✅ Drop-In📋 Reference alternative (not in catalog)
MAX153CAP+T
✅ Drop-In📋 Reference alternative (not in catalog)
MAX153EAP
✅ Drop-In✓ In Stock
$6.8 / Unit
View Datasheet →MAX153EAP-T
✅ Drop-In✓ In Stock
$7.3 / Unit
View Datasheet →MAX153EAP+T Maximum Ratings & Electrical Characteristics
| Resolution | 8 bit |
| Sampling Rate | 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) |
| Input Voltage Range | 0 V to +5 V unipolar or ±5 V bipolar |
| Reference Type | External |
| Data Interface | Parallel (microprocessor compatible) |
| Shutdown Current | 1 µA typical |
| Operating Temperature | -40°C to +85°C (industrial grade) |
| Package | 20-pin SSOP (EAP) |
| Mounting Type | Surface Mount |
| Power-Down Pin | Yes (POWERDN, active-low) |
MAX153EAP+T Pin Configuration
| Pin 1 | OUT — Analog signal input to ADC |
| Pin 2 | D0 — Digital data output bit 0 (LSB) |
| Pin 3 | D1 — Digital data output bit 1 |
| Pin 4 | D2 — Digital data output bit 2 |
| Pin 5 | D3 — Digital data output bit 3 |
| Pin 6 | D4 — Digital data output bit 4 |
| Pin 7 | D5 — Digital data output bit 5 |
| Pin 8 | D6 — Digital data output bit 6 |
| Pin 9 | D7 — Digital data output bit 7 (MSB) |
| Pin 10 | GND — Digital ground |
| Pin 11 | VDD — +5V digital supply |
| Pin 12 | RD — Read strobe, active-low |
| Pin 13 | INT — Conversion complete interrupt, active-low |
| Pin 14 | CS — Chip select, active-low |
| Pin 15 | MODE — Operating mode select (Read or Write-Mode) |
| Pin 16 | WR — Write strobe / Start conversion, active-low |
| Pin 17 | POWERDN — Power-down input, active-low |
| Pin 18 | REF — External reference voltage input |
| Pin 19 | VSS — Analog ground (or -5V negative supply) |
| Pin 20 | VCC — Analog +5V supply |
Typical Applications
MAX153EAP+T is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for MAX153EAP+T — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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 |
Key Differentiators
- Tap-and-Reel shipping carrier optimized for SMT production (vs MAX153EAP (Tube carrier))
- Industrial -40C to +85C temperature grade (vs MAX153CAP+T)
- Half-Flash architecture with 660 ns conversion time (vs MAX1225CTC+)
Design Notes
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.
Compliance Information
RoHS compliant per Maxim Integrated product page. AEC-Q100 not applicable to industrial/consumer ADC. Lead-free and conflict-minerals declaration available from manufacturer.
