Analog Devices Inc./Maxim Integrated MAX6192CESA

Overview

MAX6192CESA from Maxim Integrated is a precision, micropower, low-dropout series-mode bandgap voltage reference delivering 2.500V ±10mV initial accuracy, 5ppm/°C max temperature coefficient, and 35µA max quiescent current. It operates with input voltages as low as (V_OUT + 0.2V), supports ±500µA load current, and maintains stability with capacitive loads up to 2.2nF-ideal for high-accuracy ADC/DAC biasing in portable instrumentation.

For engineers reviewing the MAX6192CESA datasheet, MAX6192CESA pinout, MAX6192CESA application, or MAX6192CESA equivalent, this device is selected for battery-powered precision analog systems requiring stable 2.5V reference with minimal supply current, low thermal drift, and fast 85µs turn-on settling time under 0.1% error.

Technical Context

The MAX6192CESA employs a proprietary curvature-correction circuit and laser-trimmed thin-film resistors to achieve <5ppm/°C temperature coefficient and ±10mV initial accuracy over -40°C to +85°C. Its series-mode architecture enables bidirectional load current (±500µA) with only 100mV dropout at full sink/source load.

Internally compensated and stable without mandatory output capacitance, it delivers 82dB ripple rejection at 120Hz and exhibits 0.14µV/µA load regulation-critical for high-resolution data acquisition where reference perturbation must be minimized across varying load conditions.

Key Specifications

Pinout & Package

MAX6192CESA is housed in an 8-pin SO (Small Outline) package with RoHS-compliant lead-free finish. Pins 1, 3, 5, 7, and 8 are No Connect (N.C.), internally unconnected.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision voltage reference applications.

Compared with ADR3425ARJZ-R7 and REF3025AIDBZR, MAX6192CESA uniquely balances sub-35µA supply current, ±500µA bidirectional load capability, and 5ppm/°C tempco in a single 8-pin SO package-making it optimal for compact, battery-powered precision analog front-ends where both low power and moderate load drive are essential.

Availability

MAX6192CESA is available at Aetrix Electronics and suitable for hand-held instruments, analog-to-digital converters, and industrial process control systems requiring stable component supply with guaranteed long-term availability.

Supply support for MAX6192CESA includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Maxim Integrated (now part of Analog Devices) designs high-performance analog and mixed-signal ICs for precision, power, and interface applications.

The MAX6190–MAX6195/MAX6198 family was engineered specifically for micropower, low-dropout voltage references in battery-operated and space-constrained precision analog systems.

FAQ

What is the maximum load current supported by the MAX6192CESA?

The MAX6192CESA supports bidirectional load current up to ±500µA while maintaining specified accuracy and dropout voltage. It can source 0 to +500µA or sink -500µA to 0, enabling use in both active and passive reference configurations. This capability is verified across the full -40°C to +85°C temperature range and is critical for driving ADC reference inputs or op-amp bias networks without external buffering. The MAX6192CESA achieves this with only 100mV dropout at full 500µA load.

Does the MAX6192CESA require an external output capacitor?

No, the MAX6192CESA does not require an external output capacitor for stability-it is internally compensated and remains stable with capacitive loads from 0 to 2.2nF. While optional capacitors (e.g., 100pF–1nF) may improve transient response to load or line steps, omitting C_OUT is fully supported and reduces bill-of-materials count and PCB area. This feature is explicitly guaranteed in the datasheet and validated across all operating conditions for the MAX6192CESA.

What is the minimum input voltage required for regulation of the MAX6192CESA?

The minimum input voltage for regulation of the MAX6192CESA is (V_OUT + 0.2V), or 2.7V, as specified in the Electrical Characteristics table. Below this threshold, the device exits regulation and output voltage drops nonlinearly. At 500µA load, the dropout voltage is guaranteed ≤100mV, meaning VIN ≥ 2.6V sustains regulation-but the absolute minimum for guaranteed specification compliance is 2.7V. This value is confirmed for the MAX6192CESA across -40°C to +85°C.

How does the MAX6192CESA compare to the MAX6192AESA+ and MAX6192BESA+ variants?

The MAX6192CESA offers ±10mV initial accuracy and ≤5ppm/°C temperature coefficient, positioning it between the tighter-tolerance MAX6192AESA+ (±2mV, ≤5ppm/°C) and MAX6192BESA+ (±5mV, ≤10ppm/°C). All three share identical pinout, package (8-pin SO), supply current (≤35µA), and load capability (±500µA). The MAX6192CESA provides cost-optimized performance for applications where ±10mV accuracy meets system requirements-such as 14-bit data acquisition-without paying for A-grade trimming.

Is the MAX6192CESA suitable for automotive applications?

The MAX6192CESA is rated for -40°C to +85°C operation and packaged in RoHS-compliant 8-pin SO, but it is not qualified to AEC-Q100 automotive standards. For automotive use, Maxim offers the MAX6192CESA/V+ variant (with "/V" suffix), which undergoes additional qualification testing and screening. The standard MAX6192CESA is intended for industrial, medical, and portable instrumentation-not safety-critical automotive ECUs or ADAS modules.