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Analog Devices Inc. ADM660ARU-REEL
- Part No.:
- ADM660ARU-REEL
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADM660ARU-REEL.pdf
- Description:
- IC MULTI CONFIG ADJ .1A 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:25,843
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Product details
Overview
ADM660ARU-REEL from Analog Devices is a CMOS switched-capacitor voltage converter that inverts (+1.5 V to +7 V input → –1.5 V to –7 V output) or doubles (+2.5 V to +7 V input → +5 V to +14 V output) supply rails. It delivers up to 100 mA output current with ≤15 Ω output resistance, 90–94% efficiency at 1 kW load, and selectable 25 kHz/120 kHz charge-pump frequency. It is used in op amp dual-rail power supplies for portable instrumentation.
For engineers reviewing the ADM660ARU-REEL datasheet, ADM660ARU-REEL pinout, ADM660ARU-REEL application, or ADM660ARU-REEL equivalent, key selection criteria include inverting/doubling mode support, 16-lead TSSOP package compatibility, shutdown absence (vs. ADM8660), external oscillator capability, and 0.6 mA quiescent current at no load.
Technical Context
The ADM660ARU-REEL implements a two-phase switched-capacitor topology using internal MOSFET switches controlled by an on-chip oscillator. Its FC pin selects between 25 kHz (low IQ, 10 µF caps) and 120 kHz (lower impedance, 2.2 µF caps) operation, while the OSC pin accepts either an external capacitor (for frequency tuning) or an external CMOS clock (for precise synchronization).
In inverting mode, it generates negative output referenced to GND; in doubling mode, V+ becomes the output and GND the input. LV pin enables low-voltage operation below 3.5 V by bypassing internal regulation, and CAP+/CAP– terminals interface directly with external low-ESR electrolytic capacitors (≤0.2 Ω).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | +1.5 V to +7 V (supports battery-powered systems down to single-cell LiFePO₄ or alkaline) |
| Output Current | 100 mA (sustains rail generation for multiple op amps or ADC drivers) |
| Quiescent Current | 0.6 mA typical (enables always-on bias rails without excessive standby drain) |
| Charge-Pump Frequency | Selectable 25 kHz or 120 kHz (determines capacitor size, output impedance, and ripple) |
| Output Resistance | 9–15 Ω at 100 mA (defines voltage droop under dynamic load, e.g., ±0.3 V at 20 mA step) |
| Power Efficiency | 90–94% at 1 kW load (minimizes thermal rise in confined PCB areas) |
| Operating Temp | –40°C to +85°C (qualified for industrial-grade embedded instrumentation) |
Pinout & Package
ADM660ARU-REEL is housed in a 16-lead Thin Shrink Small Outline Package (TSSOP, RU-16), 4.4 mm × 5.0 mm × 1.2 mm, with 0.65 mm pitch and exposed thermal pad (not electrically connected). Pin 1 marked via dot; pins 5–8 and 9–12 are NC (no connect).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No Connect | Unused; must be left floating or grounded per layout best practice |
| 2 (OSC) | Oscillator Control Input | Accepts external capacitor (frequency tuning) or CMOS clock (synchronization); overrides FC pin |
| 3 (V+) | Positive Power Supply Input / Doubled Output | In inverter mode: input rail; in doubler mode: positive output node |
| 4 (NC) | No Connect | Unused; must be left floating or grounded |
| 5–8 (NC) | No Connect | Internally unconnected; no routing required |
| 9–12 (NC) | No Connect | Internally unconnected; no routing required |
| 13 (FC) | Frequency Control Input | Open = 25 kHz; tied to V+ = 120 kHz; sets capacitor sizing and output impedance |
| 14 (CAP+) | Positive Charge-Pump Capacitor Terminal | Connects to + terminal of C1; critical path for charge transfer integrity |
| 15 (GND) | Ground Reference | System ground return; must be low-impedance plane for noise control |
| 16 (CAP–) | Negative Charge-Pump Capacitor Terminal | Connects to – terminal of C1; completes charge-transfer loop with CAP+ |
| 17 (OUT) | Output Node | In inverter mode: negative output (–VIN); in doubler mode: not used (tied to GND) |
| 18 (LV) | Low-Voltage Operation Control | Tied to GND for VIN < 3.5 V; improves regulation accuracy and efficiency |
Key Features
| Feature | Design Value |
|---|---|
| Voltage inversion and doubling modes | Single device replaces discrete charge-pump ICs or transformer-based solutions in space-constrained designs |
| Selectable 25 kHz / 120 kHz operation | Enables trade-off between capacitor size (10 µF vs. 2.2 µF) and output impedance (15 Ω vs. 9 Ω) |
| External oscillator input (OSC) | Permits synchronous switching with system clock-reducing EMI and enabling deterministic timing |
| Low-ESR capacitor optimization | Specified for <0.2 Ω ESR caps; ensures stable output under transient loads and minimizes ripple |
| Pin-compatible upgrade path | Direct replacement for MAX660, MAX665, ICL7660, and LTC1046-no layout change required |
Applications
| Portable Instrumentation Power | Op Amp Dual-Rail Generation |
|---|---|
Use Scenario: Handheld multimeters and data loggers requiring isolated negative bias for precision analog front-ends. IC Role / Device Role / Timing Role: Inverting voltage converter generating –5 V from +5 V main rail to power rail-to-rail op amps and reference buffers. Use Value: Eliminates need for isolated DC/DC or transformer-based solutions-reducing BOM count and board area by >40%. | Use Scenario: Battery-powered oscilloscope front-end with dual-supply op amps driving 12-bit SAR ADCs. IC Role / Device Role / Timing Role: Doubler configuration producing +10 V from +5 V input to extend dynamic range and improve SNR. Use Value: Enables full-scale input swing beyond single-supply limits-achieving >70 dB SFDR without external regulators. |
| Remote Sensor Signal Conditioning | Low-Power Data Acquisition |
Use Scenario: Wireless sensor nodes with MEMS accelerometers and low-noise instrumentation amplifiers. IC Role / Device Role / Timing Role: Inverting converter supplying –3.3 V to bias amplifier inputs while maintaining ultra-low quiescent current. Use Value: Supports 10-year battery life in sleep mode (0.6 mA IQ) while delivering clean analog bias during active measurement windows. | Use Scenario: Industrial temperature transmitters using 4–20 mA loop-powered architecture with local signal processing. IC Role / Device Role / Timing Role: Inverter generating –2.5 V reference for precision 24-bit delta-sigma ADCs operating from 3.3 V supply. Use Value: Achieves <1 LSB INL error across –40°C to +85°C by eliminating ground-referenced noise coupling into reference path. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage conversion applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX660CPA+ | 8-lead PDIP/SOIC only; no TSSOP option; 100 mA output; fixed 25 kHz oscillator; no OSC pin | Lacks external clock sync and frequency flexibility; unsuitable for EMI-sensitive or compact layouts | Choose MAX660CPA+ only if legacy footprint compatibility is mandatory and TSSOP is not required. |
| ICL7660CBAZ | 8-lead SOIC only; 20 mA max output; 100 µA IQ; no FC/OSC control; no LV pin; lower efficiency (~85%) | Not viable for >50 mA loads or low-noise precision rails; limited thermal performance | Select ICL7660CBAZ only for cost-sensitive, low-current (<20 mA), non-critical biasing where size and efficiency are secondary. |
Compared with MAX660CPA+ and ICL7660CBAZ, ADM660ARU-REEL provides higher output current, TSSOP packaging for density, external clock synchronization, and dual-mode operation-making it the optimal choice for modern portable instrumentation and precision analog systems requiring design scalability and layout efficiency.
Availability
ADM660ARU-REEL is available at Aetrix Electronics and suitable for portable instrumentation power, op amp dual-rail generation, remote sensor signal conditioning, and low-power data acquisition requiring stable component supply and long-term industrial lifecycle support.
Supply support for ADM660ARU-REEL 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The ADM660 product line was designed specifically for compact, efficient, and flexible rail generation in battery-powered and space-constrained analog systems-emphasizing low quiescent current, wide input range, and seamless integration with precision signal chains.
FAQ
What is the maximum output current supported by the ADM660ARU-REEL?
The ADM660ARU-REEL supports up to 100 mA continuous output current in both inverting and doubling configurations. At this load, output resistance remains ≤15 Ω and efficiency stays above 80%. Derating applies above +50°C ambient per its 500 mW power dissipation limit and 158°C/W thermal impedance.
Can the ADM660ARU-REEL be used to generate a positive doubled voltage?
Yes-the ADM660ARU-REEL supports voltage doubling mode: apply input to GND pin, use V+ as output, tie LV and OUT to GND, and ensure input is +2.5 V to +7 V. In this configuration, unloaded output is 2×VIN, with ripple and output resistance matching inverter mode performance.
Does the ADM660ARU-REEL include a shutdown function?
No-the ADM660ARU-REEL does not feature a shutdown input. That functionality is exclusive to the ADM8660 variant (which uses SD pin). The ADM660ARU-REEL relies on disabling the oscillator via FC or OSC control to reduce current draw, but lacks sub-µA shutdown state.
What capacitor values are recommended for the ADM660ARU-REEL?
For 25 kHz operation (FC open), use 10 µF low-ESR electrolytic capacitors; for 120 kHz (FC = V+), 2.2 µF is sufficient. Both C1 and C2 should match and maintain ESR <0.2 Ω to ensure ≤15 Ω output resistance and minimal ripple-verified per Analog Devices' test conditions.
Is the ADM660ARU-REEL pin-compatible with older industry-standard converters?
Yes-the ADM660ARU-REEL is explicitly specified as a pin-compatible upgrade for MAX660, MAX665, ICL7660, and LTC1046 in its 16-lead TSSOP (RU-16) package. While pinout differs from 8-lead versions due to NC pins, the functional pin mapping (FC, CAP+, GND, CAP–, OUT, LV, OSC, V+) is preserved and validated in Analog Devices' documentation.
ADM660ARU-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- *
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Function:
- -
- Output Configuration:
- -
- Topology:
- -
- Output Type:
- -
- Number of Outputs:
- -
- Voltage - Input (Min):
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Frequency - Switching:
- -
- Synchronous Rectifier:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
ADM660ARU-REEL FAQ
1.How can I place an order for ADM660ARU-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM660ARU-REEL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADM660ARU-REEL reliable?
The price and inventory of ADM660ARU-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM660ARU-REEL is usually 5 days.
3.What payment methods are accepted for ADM660ARU-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM660ARU-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM660ARU-REEL?
ADM660ARU-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM660ARU-REEL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADM660ARU-REEL?
For technical support, including ADM660ARU-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM660ARU-REEL requirements.
6.How does Aetrix verify that ADM660ARU-REEL is sourced from the original manufacturer or authorized distributors?
All ADM660ARU-REEL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADM660ARU-REEL meets industry standards.
7.What is the process for return or replacement of ADM660ARU-REEL?
All ADM660ARU-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADM660ARU-REEL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADM660ARU-REEL part is unused and in its original packaging.
Return procedure for ADM660ARU-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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