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Analog Devices Inc. ADM660ARUZ-REEL
- Part No.:
- ADM660ARUZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADM660ARUZ-REEL.pdf
- Description:
- IC REG CHARGE PUMP INV 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,759
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Product details
Overview
ADM660ARUZ-REEL from Analog Devices is a CMOS switched-capacitor voltage inverter/doubler IC that generates –VIN or 2×VIN from +1.5 V to +7 V input, delivers up to 100 mA output current, features selectable 25 kHz/120 kHz charge-pump frequency, and operates across –40°C to +85°C for portable instrumentation and op amp dual-rail power supplies.
For engineers reviewing the ADM660ARUZ-REEL datasheet, ADM660ARUZ-REEL pinout, ADM660ARUZ-REEL application, or ADM660ARUZ-REEL equivalent, key selection criteria include inverting/doubling mode support, low-quiescent-current operation (600 µA), TSSOP-16 package compatibility, and pin compatibility with legacy ICL7660/MAX660 designs.
Technical Context
The ADM660ARUZ-REEL implements a two-phase switched-capacitor topology using internal MOSFET switches controlled by an on-chip oscillator. It supports both inverting (VOUT = –VIN) and doubling (VOUT = 2×VIN) configurations via LV pin state, with FC pin selecting 25 kHz or 120 kHz charge-pump frequency to optimize external capacitor size (10 µF or 2.2 µF) and output impedance.
Unlike the ADM8660, the ADM660ARUZ-REEL includes an OSC pin for external clock synchronization or capacitor-controlled frequency tuning, enabling precise ripple and efficiency trade-offs. Its LV pin configures low-voltage operation (<3.5 V) and determines mode selection-GND for inversion, OUT for doubling-while maintaining <0.3 V dropout at 30 mA load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | +1.5 V to +7 V - supports single-cell Li-ion, alkaline, and regulated 3.3 V/5 V rails |
| Output Current | 100 mA - sufficient for powering dual op amps, ADC reference buffers, or RS-232 transceivers |
| Quiescent Current | 600 µA typical - enables battery-powered operation with minimal standby drain |
| Charge-Pump Frequency | Selectable 25 kHz or 120 kHz - determines external capacitor sizing (10 µF or 2.2 µF) and output impedance |
| Output Resistance | 9 Ω to 15 Ω at 100 mA - defines voltage droop under load; lower than MAX660's ~20 Ω |
| Power Efficiency | 90–94% at 1 kΩ load - maintains high conversion efficiency even at light loads |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded systems and handheld equipment |
Pinout & Package
ADM660ARUZ-REEL is housed in a 16-lead Thin Shrink Small Outline Package (TSSOP, RU-16), measuring 5.00 mm × 4.40 mm × 1.20 mm, with 0.65 mm pitch, RoHS-compliant matte tin lead finish, and JEDEC MO-153-AB compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14, 15, 16 | No Connect (NC) | Internally unconnected; must be left floating or tied to GND per layout best practice |
| 8 | Oscillator Control Input (OSC) | Accepts external capacitor or CMOS clock; sets oscillator frequency (fCP = fOSC/2) |
| 9 | Positive Power Supply Input (V+) | Main input rail; connects to +1.5 V to +7 V source; powers internal logic and switches |
| 10 | No Connect (NC) | Internally unconnected; no routing required |
| 11 | No Connect (NC) | Internally unconnected; no routing required |
| 12 | Frequency Control Input (FC) | Selects charge-pump frequency: open = 25 kHz, V+ = 120 kHz |
| 13 | Positive Charge-Pump Capacitor Terminal (CAP+) | Connects to positive terminal of C1; forms first stage of charge transfer network |
| 14 | Ground (GND) | Reference node for input supply and internal circuitry; return path for C1/C2 |
| 15 | Negative Charge-Pump Capacitor Terminal (CAP–) | Connects to negative terminal of C1; completes charge transfer loop with CAP+ |
| 16 | Output (OUT) | Delivers inverted (–VIN) or doubled (2×VIN) voltage; connects to C2 and load |
Key Features
| Feature | Design Value |
|---|---|
| Inverting and doubling modes | Single IC supports both –VIN generation (LV = GND) and 2×VIN generation (LV = OUT), eliminating need for separate parts |
| Selectable charge-pump frequency | 25 kHz or 120 kHz via FC pin - enables optimization of capacitor size (10 µF vs. 2.2 µF) and output impedance |
| External oscillator interface | OSC pin accepts external clock or capacitor - allows precise frequency control beyond fixed 25/120 kHz options |
| Low-voltage operation support | LV pin enables stable operation down to +1.5 V input when tied to GND - critical for single-cell battery systems |
| Pin-compatible upgrade path | Direct replacement for ICL7660, MAX660, MAX665, and LTC1046 in R-8 and RU-16 packages - reduces redesign effort |
Applications
| Portable Instrumentation Power | Op Amp Dual-Rail Supply |
|---|---|
Use Scenario: Handheld multimeters and data loggers requiring isolated negative bias for analog front-end signal conditioning. IC Role / Device Role / Timing Role: Generates –3.3 V or –5 V from single 3.3 V or 5 V supply to power precision op amps and ADC drivers. Use Value: Eliminates need for discrete inductor-based DC/DC converters, reducing BOM cost and PCB area while maintaining <0.3 V dropout at 30 mA. | Use Scenario: Industrial sensor interfaces where rail-to-rail op amps require symmetric ±VREF supplies from a single 5 V system rail. IC Role / Device Role / Timing Role: Inverts +5 V input to –5 V output, paired with existing +5 V rail to create true dual-supply environment. Use Value: Achieves >90% efficiency at 50 mA load, minimizing thermal impact in sealed enclosures and extending battery life in portable units. |
| Remote Data Acquisition | RS-232 Level Translation |
Use Scenario: Battery-powered remote telemetry nodes transmitting analog sensor data over long distances using low-power ADCs and microcontrollers. IC Role / Device Role / Timing Role: Supplies –2.5 V reference voltage for 16-bit SAR ADCs and –3.3 V bias for low-noise instrumentation amplifiers. Use Value: 600 µA quiescent current ensures multi-year operation on AA batteries; 100 mA capability supports burst-mode sensing without brownout. | Use Scenario: Embedded controllers interfacing with legacy RS-232 peripherals requiring ±12 V signaling levels from a 3.3 V MCU domain. IC Role / Device Role / Timing Role: Doubles 3.3 V input to generate +6.6 V, then inverts to –6.6 V - used with external charge pumps or level-shifting ICs to meet EIA-232 spec. Use Value: Enables full-duplex RS-232 communication without external transformers or boost converters, simplifying isolation design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX660CPA+ | 8-pin PDIP/SOIC; no OSC pin; fixed 25 kHz only; 1.5 V min input; 80 mA max output | Lacks doubling mode and external frequency control; limited to inverting-only use below 3.3 V | Choose for cost-sensitive, space-constrained legacy designs where 25 kHz and 80 mA suffice |
| ICL7660CBAZ | 8-pin SOIC; no FC/OSC pins; 1.5 V–10 V input; 20 mA output; higher 1.5 mA quiescent current | Not suitable for >20 mA loads or low-quiescent applications; no frequency selection or mode flexibility | Choose only for drop-in replacement in existing ICL7660 footprints with light-load requirements |
Compared with MAX660CPA+ and ICL7660CBAZ, ADM660ARUZ-REEL provides higher output current (100 mA), dual-mode operation, lower quiescent current (600 µA), and flexible frequency control - making it optimal for modern portable instrumentation and precision analog systems demanding scalability and efficiency.
Availability
ADM660ARUZ-REEL is available at Aetrix Electronics and suitable for portable instrumentation, op amp dual-rail power supplies, and remote data acquisition systems requiring stable component supply, RoHS compliance, and industrial temperature range support.
Supply support for ADM660ARUZ-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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, serving industrial, automotive, communications, and healthcare markets.
The ADM660 product line delivers compact, capacitor-based DC/DC conversion for space- and power-constrained applications - designed specifically to replace bulky inductor-based solutions in portable and battery-operated systems.
FAQ
What are the valid operating modes of the ADM660ARUZ-REEL?
The ADM660ARUZ-REEL supports two distinct operating modes: voltage inversion (VOUT = –VIN) when LV is connected to GND, and voltage doubling (VOUT = 2×VIN) when LV is connected to OUT. Both modes require V+ between +1.5 V and +7 V. The ADM660ARUZ-REEL does not support shutdown mode - that function is exclusive to the ADM8660 series.
Can the ADM660ARUZ-REEL be used with 2.2 µF external capacitors?
Yes, the ADM660ARUZ-REEL supports 2.2 µF external capacitors when the FC pin is driven high (FC = V+), which selects 120 kHz charge-pump frequency. This configuration reduces board area versus the 10 µF/25 kHz option and lowers output impedance, though quiescent current increases slightly. Low-ESR electrolytic or tantalum capacitors are required.
What is the purpose of the OSC pin on the ADM660ARUZ-REEL?
The OSC pin on the ADM660ARUZ-REEL allows external control of the internal oscillator frequency - either by connecting a capacitor to set a precise frequency or by applying an external CMOS clock signal (with edges within 100 mV of V+/GND). The resulting charge-pump frequency equals half the OSC input frequency, enabling fine-grained ripple and efficiency tuning beyond the fixed 25/120 kHz options.
Is the ADM660ARUZ-REEL pin-compatible with the MAX660 in the same package?
No - the ADM660ARUZ-REEL is in a 16-lead TSSOP (RU-16) package, while standard MAX660 variants use 8-lead SOIC (R-8) or PDIP (N-8). However, Analog Devices offers the pin-compatible ADM660ARZ-REEL (R-8) and ADM660ANZ (N-8) for direct MAX660/ICL7660 replacements. The RU-16 variant adds NC pins but retains functional pin equivalence for CAP+, GND, CAP–, V+, OUT, FC, LV, and OSC.
What is the minimum input voltage required for reliable operation of the ADM660ARUZ-REEL?
The ADM660ARUZ-REEL guarantees operation down to +1.5 V input when the LV pin is connected to GND - this bypasses internal regulation and enables stable inversion for single-cell alkaline or NiMH battery systems. At inputs below +3.5 V, LV = GND is mandatory; above +3.5 V, LV may be left open or tied to GND depending on desired mode and noise sensitivity.
ADM660ARUZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Ratiometric
- Output Configuration:
- Positive or Negative
- Topology:
- Charge Pump
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.5V
- Voltage - Input (Max):
- 7V
- Voltage - Output (Min/Fixed):
- -Vin, 2Vin
- Voltage - Output (Max):
- -
- Current - Output:
- 100mA
- Frequency - Switching:
- 25kHz, 120kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
ADM660ARUZ-REEL FAQ
1.How can I place an order for ADM660ARUZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM660ARUZ-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 ADM660ARUZ-REEL reliable?
The price and inventory of ADM660ARUZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM660ARUZ-REEL is usually 5 days.
3.What payment methods are accepted for ADM660ARUZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM660ARUZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM660ARUZ-REEL?
ADM660ARUZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM660ARUZ-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 ADM660ARUZ-REEL?
For technical support, including ADM660ARUZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM660ARUZ-REEL requirements.
6.How does Aetrix verify that ADM660ARUZ-REEL is sourced from the original manufacturer or authorized distributors?
All ADM660ARUZ-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 ADM660ARUZ-REEL meets industry standards.
7.What is the process for return or replacement of ADM660ARUZ-REEL?
All ADM660ARUZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADM660ARUZ-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 ADM660ARUZ-REEL part is unused and in its original packaging.
Return procedure for ADM660ARUZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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